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  • 101.
    Bager, Ninna
    et al.
    Aarhus Univ Hosp, Dept Paediat & Adolescent Med, Palle Juul Jensens Blvd 99, DK-8200 Aarhus N, Denmark.
    Juul-Dam, Kristian L.
    Aarhus Univ Hosp, Dept Paediat & Adolescent Med, Palle Juul Jensens Blvd 99, DK-8200 Aarhus N, Denmark.
    Sandahl, Julie D.
    Aarhus Univ Hosp, Dept Paediat & Adolescent Med, Palle Juul Jensens Blvd 99, DK-8200 Aarhus N, Denmark.
    Abrahamsson, Jonas
    Queen Silvia Childrens Hosp, Inst Clin Sci, Dept Paediat, Gothenburg, Sweden.
    Beverloo, Berna
    Erasmus MC Sophia Childrens Hosp, Dept Cytogenet, Rotterdam, Netherlands.
    de Bont, Eveline S. J. M.
    Univ Med Ctr Groningen, Dept Paediat, Groningen, Netherlands.
    Ha, Shau-Yin
    Queen Mary Hosp, Hong Kong Paediat Haematol & Oncol Study Grp, Dept Paediat, Hong Kong, Hong Kong, Peoples R China.
    Jahnukainen, Kirsi
    Univ Helsinki, Childrens Hosp, Helsinki, Finland;Helsinki Univ Hosp, Helsinki, Finland.
    Jonsson, Olafur G.
    Landspital Inn, Dept Paediat, Reykjavik, Iceland.
    Kaspers, Gertjan L.
    Vrije Univ Amsterdam Med Ctr, Paediat Oncol Haematol, Amsterdam, Netherlands;Acad Princess Maxima Ctr Paediat Oncol, Utrecht, Netherlands.
    Kovalova, Zhanna
    Childrens Clin Univ Hosp, Dept Paediat, Riga, Latvia.
    Lausen, Birgitte
    Univ Copenhagen, Rigshosp, Dept Paediat & Adolescent Med, Copenhagen, Denmark.
    De Moerloose, Barbara
    Ghent Univ Hosp, Dept Paediat, Ghent, Belgium.
    Noren-Nystroem, Ulrika
    Umea Univ Hosp, Dept Med Biosci, Genet, Umea, Sweden.
    Palle, Josefine
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kvinnors och barns hälsa, Forskargrupper (Inst. för kvinnor och barns hälsa), Barnneurologi/Barnonkologi.
    Saks, Kadri
    SA Tallinna Lastehaigla, Dept Paediat, Tallinn, Estonia.
    Zeller, Bernward
    Oslo Univ Hosp, Div Paediat & Adolescent Med, Oslo, Norway.
    Kjeldsen, Eigil
    Aarhus Univ Hosp, Dept Cytogenet, Aarhus, Denmark.
    Hasle, Henrik
    Aarhus Univ Hosp, Dept Paediat & Adolescent Med, Palle Juul Jensens Blvd 99, DK-8200 Aarhus N, Denmark.
    Complex and monosomal karyotype are distinct cytogenetic entities with an adverse prognostic impact in paediatric acute myeloid leukaemia: A NOPHO-DBH-AML study2018Ingår i: British Journal of Haematology, ISSN 0007-1048, E-ISSN 1365-2141, Vol. 183, nr 4, s. 618-628Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Data on occurrence, genetic characteristics and prognostic impact of complex and monosomal karyotype (CK/MK) in children with acute myeloid leukaemia (AML) are scarce. We studied CK and MK in a large unselected cohort of childhood AML patients diagnosed and treated according to Nordic Society for Paediatric Haematology and Oncology (NOPHO)-AML protocols 1993-2015. In total, 800 patients with de novo AML were included. CK was found in 122 (15%) and MK in 41 (5%) patients. CK and MK patients were young (median age 2.1 and 3.3 years, respectively) and frequently had FAB M7 morphology (24% and 22%, respectively). Refractory disease was more common in MK patients (15% vs. 4%) and stem cell transplantation in first complete remission was more frequent (32% vs. 19%) compared with non-CK/non-MK patients. CK showed no association with refractory disease but was an independent predictor of an inferior event-free survival (EFS; hazard ratio [HR] 1.43, P = 0.03) and overall survival (OS; HR 1.48, P = 0.01). MK was associated with a poor EFS (HR 1.57, P = 0.03) but did not show an inferior OS compared to non-MK patients (HR 1.14, P = 0.62). In a large paediatric cohort, we characterized AML with non-recurrent abnormal karyotype and unravelled the adverse impact of CK and MK on prognosis.

  • 102.
    Baliakas, Panagiotis
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Hadzidimitriou, A.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Mattsson, Mattias
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Xochelli, Aliki
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Sutton, L. A.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Minga, E.
    Ctr Res & Technol Hellas, Inst Appl Biosci, Thessaloniki, Greece..
    Scarfo, L.
    Ist Sci San Raffaele, Div Expt Oncol, I-20132 Milan, Italy.;Ist Sci San Raffaele, Dept Oncohematol, I-20132 Milan, Italy.;Fdn Ctr San Raffaele, Milan, Italy.;Univ Vita Salute San Raffaele, Milan, Italy..
    Rossi, D.
    Amedeo Avogadro Univ Eastern Piedmont, Dept Translat Med, Div Hematol, Novara, Italy..
    Davis, Z.
    Royal Bournemouth Hosp, Dept Haematol, Bournemouth, Dorset, England..
    Agathangelidis, A.
    Ist Sci San Raffaele, Div Expt Oncol, I-20132 Milan, Italy.;Ist Sci San Raffaele, Dept Oncohematol, I-20132 Milan, Italy.;Fdn Ctr San Raffaele, Milan, Italy.;Univ Vita Salute San Raffaele, Milan, Italy..
    Villamor, N.
    Hosp Clin Barcelona, Hemopathol Unit, Barcelona, Spain..
    Parker, H.
    Univ Southampton, Fac Med, Canc Sci, Southampton SO9 5NH, Hants, England..
    Kotaskova, J.
    Masaryk Univ, Cent European Inst Technol, Brno, Czech Republic.;Univ Hosp Brno, Brno, Czech Republic..
    Stalika, E.
    Ctr Res & Technol Hellas, Inst Appl Biosci, Thessaloniki, Greece.;G Papanicolaou Hosp, Hematol Dept, Thessaloniki, Greece.;G Papanicolaou Hosp, HCT Unit, Thessaloniki, Greece..
    Plevova, K.
    Masaryk Univ, Cent European Inst Technol, Brno, Czech Republic.;Univ Hosp Brno, Brno, Czech Republic..
    Mansouri, Larry
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Cortese, Diego
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Navarro Lopez, A.
    Hosp Clin Barcelona, Hemopathol Unit, Barcelona, Spain..
    Delgado, J.
    Hosp Clin Barcelona, Dept Hematol, Barcelona, Spain..
    Larrayoz, M.
    Univ Southampton, Fac Med, Canc Sci, Southampton SO9 5NH, Hants, England..
    Anagnostopoulos, A.
    G Papanicolaou Hosp, Hematol Dept, Thessaloniki, Greece.;G Papanicolaou Hosp, HCT Unit, Thessaloniki, Greece..
    Belessi, C.
    Nikea Gen Hosp, Dept Hematol, Piraeus, Greece..
    Smedby, K. E.
    Dept Med, Solna, Sweden.;Karolinska Inst, Clin Epidemiol Unit, Stockholm, Sweden..
    Juliusson, G.
    Lund Univ, Lund, Sweden.;Lund Stem Cell Ctr, Hosp Dept Hematol, Lund, Sweden..
    Strefford, J. C.
    Univ Southampton, Fac Med, Canc Sci, Southampton SO9 5NH, Hants, England..
    Pospisilova, S.
    Masaryk Univ, Cent European Inst Technol, Brno, Czech Republic.;Univ Hosp Brno, Brno, Czech Republic..
    Oscier, D.
    Royal Bournemouth Hosp, Dept Haematol, Bournemouth, Dorset, England..
    Gaidano, G.
    Amedeo Avogadro Univ Eastern Piedmont, Dept Translat Med, Div Hematol, Novara, Italy..
    Campo, E.
    Hosp Clin Barcelona, Hemopathol Unit, Barcelona, Spain.;Univ Barcelona, Dept Pathol, Barcelona, Spain..
    Ghia, P.
    Ist Sci San Raffaele, Div Expt Oncol, I-20132 Milan, Italy.;Ist Sci San Raffaele, Dept Oncohematol, I-20132 Milan, Italy.;Fdn Ctr San Raffaele, Milan, Italy.;Univ Vita Salute San Raffaele, Milan, Italy..
    Rosenquist, Richard
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Stamatopoulos, Kostas
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    REFINING PROGNOSIS OF CHRONIC LYMPHOCYTIC LEUKEMIA WITH SOMATICALLY HYPERMUTATED B-CELL RECEPTORS: A NOVEL PROGNOSTIC INDEX ON BEHALF OF THE EUROPEAN RESEARCH INITIATIVE ON CLL (ERIC)2015Ingår i: Haematologica, ISSN 0390-6078, E-ISSN 1592-8721, Vol. 100, s. 52-52Artikel i tidskrift (Övrigt vetenskapligt)
  • 103.
    Baliakas, Panagiotis
    et al.
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
    Hadzidimitriou, A
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Sutton, Lesley Ann
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Rossi, D
    Minga, E
    Villamor, N
    Larrayoz, M
    Kminkova, J
    Agathangelidis, A
    Davis, Z
    Tausch, E
    Stalika, E
    Kantorova, B
    Mansouri, Larry
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
    Scarfò, L
    Cortese, Diego
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Navrkalova, V
    Rose-Zerilli, M J J
    Smedby, K E
    Juliusson, G
    Anagnostopoulos, A
    Makris, A M
    Navarro, A
    Delgado, J
    Oscier, D
    Belessi, C
    Stilgenbauer, S
    Ghia, P
    Pospisilova, S
    Gaidano, G
    Campo, E
    Strefford, J C
    Stamatopoulos, Kostas
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi.
    Rosenquist, Richard
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Recurrent mutations refine prognosis in chronic lymphocytic leukemia2015Ingår i: Leukemia, ISSN 0887-6924, E-ISSN 1476-5551, Vol. 29, s. 329-336Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Through the European Research Initiative on chronic lymphocytic leukemia (CLL) (ERIC), we screened 3490 patients with CLL for mutations within the NOTCH1 (n=3334), SF3B1 (n=2322), TP53 (n=2309), MYD88 (n=1080) and BIRC3 (n=919) genes, mainly at diagnosis (75%) and before treatment (>90%). BIRC3 mutations (2.5%) were associated with unmutated IGHV genes (U-CLL), del(11q) and trisomy 12, whereas MYD88 mutations (2.2%) were exclusively found among M-CLL. NOTCH1, SF3B1 and TP53 exhibited variable frequencies and were mostly enriched within clinically aggressive cases. Interestingly, as the timespan between diagnosis and mutational screening increased, so too did the incidence of SF3B1 mutations; no such increase was observed for NOTCH1 mutations. Regarding the clinical impact, NOTCH1 mutations, SF3B1 mutations and TP53 aberrations (deletion/mutation, TP53ab) correlated with shorter time-to-first-treatment (P<0.0001) in 889 treatment-naive Binet stage A cases. In multivariate analysis (n=774), SF3B1 mutations and TP53ab along with del(11q) and U-CLL, but not NOTCH1 mutations, retained independent significance. Importantly, TP53ab and SF3B1 mutations had an adverse impact even in U-CLL. In conclusion, we support the clinical relevance of novel recurrent mutations in CLL, highlighting the adverse impact of SF3B1 and TP53 mutations, even independent of IGHV mutational status, thus underscoring the need for urgent standardization/harmonization of the detection methods.

  • 104.
    Baliakas, Panagiotis
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala Univ, Sci Life Lab, Dept Immunol Genet & Pathol, Uppsala, Sweden.;G Papanicolaou Hosp, Dept Hematol, Thessaloniki, Greece.;G Papanicolaou Hosp, HCT Unit, Thessaloniki, Greece..
    Hadzidimitriou, Anastasia
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi. CERTH, Inst Appl Biosci, Thessaloniki, Greece..
    Sutton, Lesley-Ann
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Minga, Eva
    CERTH, Inst Appl Biosci, Thessaloniki, Greece..
    Agathangelidis, Andreas
    Univ Vita Salute San Raffaele, I-20132 Milan, Italy.;Ist Sci San Raffaele, IRCCS, Div Mol Oncol, I-20132 Milan, Italy.;Ist Sci San Raffaele, IRCCS, Dept Oncohematol, I-20132 Milan, Italy..
    Nichelatti, Michele
    Osped Niguarda Ca Granda, Niguarda Canc Ctr, Mol Pathol Unit, Milan, Italy.;Osped Niguarda Ca Granda, Niguarda Canc Ctr, Dept Haematol, Milan, Italy..
    Tsanousa, Athina
    Aristotle Univ Thessaloniki, Dept Informat, GR-54006 Thessaloniki, Greece..
    Scarfo, Lydia
    Univ Vita Salute San Raffaele, I-20132 Milan, Italy.;Ist Sci San Raffaele, IRCCS, Div Mol Oncol, I-20132 Milan, Italy.;Ist Sci San Raffaele, IRCCS, Dept Oncohematol, I-20132 Milan, Italy..
    Davis, Zadie
    Royal Bournemouth Hosp, Dept Haematol, Bournemouth, Dorset, England..
    Yan, Xiao-Jie
    North Shore Long Isl Jewish Hlth Syst, Feinstein Inst Med Res, Manhasset, NY USA..
    Shanafelt, Tait
    Mayo Clin, Div Hematol, Dept Med, Rochester, MN USA..
    Plevova, Karla
    Masaryk Univ, Cent European Inst Technol, Brno, Czech Republic.;Univ Hosp Brno, Brno, Czech Republic..
    Sandberg, Yorick
    Erasmus MC, Univ Med Ctr, Dept Immunol, Rotterdam, Netherlands..
    Vojdeman, Fie Juhl
    Rigshosp, Dept Hematol, DK-2100 Copenhagen, Denmark..
    Boudjogra, Myriam
    Hop La Pitie Salpetriere, Serv Hematol Biol, Paris, France..
    Tzenou, Tatiana
    Univ Athens, Dept Propaedeut Med, Athens, Greece..
    Chatzouli, Maria
    Nikea Gen Hosp, Dept Hematol, Piraeus, Greece..
    Chu, Charles C.
    North Shore Long Isl Jewish Hlth Syst, Feinstein Inst Med Res, Manhasset, NY USA..
    Veronese, Silvio
    Osped Niguarda Ca Granda, Niguarda Canc Ctr, Mol Pathol Unit, Milan, Italy.;Osped Niguarda Ca Granda, Niguarda Canc Ctr, Dept Haematol, Milan, Italy..
    Gardiner, Anne
    Royal Bournemouth Hosp, Dept Haematol, Bournemouth, Dorset, England..
    Mansouri, Larry
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. Uppsala Univ, Sci Life Lab, Dept Immunol Genet & Pathol, Uppsala, Sweden..
    Smedby, Karin E.
    Karolinska Inst, Dept Med, Clin Epidemiol Unit, Stockholm, Sweden..
    Pedersen, Lone Bredo
    Rigshosp, Dept Hematol, DK-2100 Copenhagen, Denmark..
    van Lom, Kirsten
    Erasmus MC, Univ Med Ctr, Dept Hematol, Rotterdam, Netherlands..
    Giudicelli, Veronique
    Univ Montpellier, IMGT Int ImMunoGeneT Informat Syst, LIGM, Inst Genet Humaine, F-34059 Montpellier, France..
    Francova, Hana Skuhrova
    Masaryk Univ, Cent European Inst Technol, Brno, Czech Republic.;Univ Hosp Brno, Brno, Czech Republic..
    Nguyen-Khac, Florence
    Hop La Pitie Salpetriere, Serv Hematol Biol, Paris, France..
    Panagiotidis, Panagiotis
    Univ Athens, Dept Propaedeut Med, Athens, Greece..
    Juliusson, Gunnar
    Lund Univ & Hosp, Dept Hematol, Lund Stem Cell Ctr, Lund, Sweden..
    Angelis, Lefteris
    Aristotle Univ Thessaloniki, Dept Informat, GR-54006 Thessaloniki, Greece..
    Anagnostopoulos, Achilles
    G Papanicolaou Hosp, Dept Hematol, Thessaloniki, Greece.;G Papanicolaou Hosp, HCT Unit, Thessaloniki, Greece..
    Lefranc, Marie-Paule
    Univ Montpellier, IMGT Int ImMunoGeneT Informat Syst, LIGM, Inst Genet Humaine, F-34059 Montpellier, France..
    Facco, Monica
    Univ Padua, Sch Med, Dept Med, Hematol & Clin Immunol Branch, I-35100 Padua, Italy.;Venetian Inst Mol Med, Padua, Italy..
    Trentin, Livio
    Univ Padua, Sch Med, Dept Med, Hematol & Clin Immunol Branch, I-35100 Padua, Italy.;Venetian Inst Mol Med, Padua, Italy..
    Catherwood, Mark
    Belfast City Hosp, Dept Haematooncol, Belfast BT9 7AD, Antrim, North Ireland..
    Montillo, Marco
    Osped Niguarda Ca Granda, Niguarda Canc Ctr, Mol Pathol Unit, Milan, Italy.;Osped Niguarda Ca Granda, Niguarda Canc Ctr, Dept Haematol, Milan, Italy..
    Geisler, Christian H.
    Rigshosp, Dept Hematol, DK-2100 Copenhagen, Denmark..
    Langerak, Anton W.
    Erasmus MC, Univ Med Ctr, Dept Immunol, Rotterdam, Netherlands..
    Pospisilova, Sarka
    Masaryk Univ, Cent European Inst Technol, Brno, Czech Republic.;Univ Hosp Brno, Brno, Czech Republic..
    Chiorazzi, Nicholas
    North Shore Long Isl Jewish Hlth Syst, Feinstein Inst Med Res, Manhasset, NY USA..
    Oscier, David
    Royal Bournemouth Hosp, Dept Haematol, Bournemouth, Dorset, England..
    Jelinek, Diane F.
    Mayo Clin, Dept Immunol, Dept Med, Rochester, MN USA..
    Darzentas, Nikos
    Masaryk Univ, Cent European Inst Technol, Brno, Czech Republic..
    Belessi, Chrysoula
    Nikea Gen Hosp, Dept Hematol, Piraeus, Greece..
    Davi, Frederic
    Hop La Pitie Salpetriere, Serv Hematol Biol, Paris, France..
    Rosenquist Barndell, Richard
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Ghia, Paolo
    Univ Vita Salute San Raffaele, I-20132 Milan, Italy.;Ist Sci San Raffaele, IRCCS, Div Mol Oncol, I-20132 Milan, Italy.;Ist Sci San Raffaele, IRCCS, Dept Oncohematol, I-20132 Milan, Italy..
    Stamatopoulos, Kostas
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. G Papanicolaou Hosp, Dept Hematol, Thessaloniki, Greece.;G Papanicolaou Hosp, HCT Unit, Thessaloniki, Greece.;CERTH, Inst Appl Biosci, Thessaloniki, Greece..
    Clinical effect of stereotyped B-cell receptor immunoglobulins in chronic lymphocytic leukaemia: a retrospective multicentre study2014Ingår i: LANCET HAEMATOLOGY, ISSN 2352-3026, Vol. 1, nr 2, s. E74-E84Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background About 30% of cases of chronic lymphocytic leukaemia (CLL) carry quasi-identical B-cell receptor immunoglobulins and can be assigned to distinct stereotyped subsets. Although preliminary evidence suggests that B-cell receptor immunoglobulin stereotypy is relevant from a clinical viewpoint, this aspect has never been explored in a systematic manner or in a cohort of adequate size that would enable clinical conclusions to be drawn. Methods For this retrospective, multicentre study, we analysed 8593 patients with CLL for whom immunogenetic data were available. These patients were followed up in 15 academic institutions throughout Europe (in Czech Republic, Denmark, France, Greece, Italy, Netherlands, Sweden, and the UK) and the USA, and data were collected between June 1, 2012, and June 7, 2013. We retrospectively assessed the clinical implications of CLL B-cell receptor immunoglobulin stereotypy, with a particular focus on 14 major stereotyped subsets comprising cases expressing unmutated (U-CLL) or mutated (M-CLL) immunoglobulin heavy chain variable genes. The primary outcome of our analysis was time to first treatment, defined as the time between diagnosis and date of first treatment. Findings 2878 patients were assigned to a stereotyped subset, of which 1122 patients belonged to one of 14 major subsets. Stereotyped subsets showed significant differences in terms of age, sex, disease burden at diagnosis, CD38 expression, and cytogenetic aberrations of prognostic significance. Patients within a specific subset generally followed the same clinical course, whereas patients in different stereotyped subsets-despite having the same immunoglobulin heavy variable gene and displaying similar immunoglobulin mutational status-showed substantially different times to first treatment. By integrating B-cell receptor immunoglobulin stereotypy (for subsets 1, 2, and 4) into the well established Dohner cytogenetic prognostic model, we showed these, which collectively account for around 7% of all cases of CLL and represent both U-CLL and M-CLL, constituted separate clinical entities, ranging from very indolent (subset 4) to aggressive disease (subsets 1 and 2). Interpretation The molecular classification of chronic lymphocytic leukaemia based on B-cell receptor immunoglobulin stereotypy improves the Dohner hierarchical model and refines prognostication beyond immunoglobulin mutational status, with potential implications for clinical decision making, especially within prospective clinical trials.

  • 105.
    Baliakas, Panagiotis
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
    Jeronim, Sabine
    MLL Munich Leukemia Lab, Munich, Germany.
    Iskas, Michalis
    G Papanicolaou Hosp, Dept Hematol, Thessaloniki, Greece; G Papanicolaou Hosp, HCT Unit, Exochi, Greece.
    Puiggros, Anna
    Fdn IMIM Hosp del Mar, Barcelona, Spain.
    Plevova, Karla
    Masaryk Univ, Cent European Inst Technol CEITEC, Brno, Czech Republic.
    Xochelli, Aliki
    Ctr Res & Technol Hellas, Inst Appl Biosci, Thessaloniki, Greece.
    Delgado, Julio
    Univ Barcelona, Seccio Hematopatol, Hosp Clin, Inst Invest Biomed Augusti Pi & Sunyer IDIBAPS, Barcelona, Spain.
    Kotaskova, Jana
    Masaryk Univ, CEITEC, Brno, Czech Republic; Univ Hosp Brno, Dept Internal Med Hematol & Oncol, Brno, Czech Republic; Med Fac MU, Brno, Czech Republic.
    Stalika, Evangelia
    CERTH, Thermi, Greece.
    Costa, Pablo Abrisqueta
    Vall dHebron Inst Oncol, Barcelona, Spain.
    Durechova, Kristina
    Masaryk Univ, Cent European Inst Technol CEITEC, Brno, Czech Republic.
    Papaioannou, Giorgos
    G Papanicolaou Hosp, Dept Hematol, Thessaloniki, Greece; G Papanicolaou Hosp, HCT Unit, Exochi, Greece.
    Collado, Rosa
    Consorcio Hosp Gen Univ, Serv Hematol, Valencia, Spain.
    Doubek, Michael
    Univ Hosp Brno, Brno, Czech Republic.
    Jose Calasanz, M.
    Univ Navarra, Dept Genet, Serv Citogenet, Pamplona, Spain.
    Ruiz-Xiville, Neus
    Univ Autonoma Barcelona, Inst Recerca Leucemia Josep Carreras IJC, Hosp Germans Trias & Pujol, Serv Lab Hematol,ICO, Badalona, Spain.
    Moreno, Carol
    Hosp Santa Creu & Sant Pau, Barcelona, Spain.
    Anagnostopoulos, Achilles
    George Papanicolaou Hosp, Haematol Dept, BMT Unit, Gene & Cell Therapy Ctr, Exochi, Greece.
    Stavroyianni, Niki
    G Papanicolaou Hosp, Dept Hematol, Thessaloniki, Greece; G Papanicolaou Hosp, HCT Unit, Exochi, Greece.
    Kater, Arnon
    Univ Amsterdam, Amsterdam, Netherlands.
    Espinet, Blanca
    Fdn IMIM Hosp del Mar, Barcelona, Spain.
    Pospisilova, Sarka
    Masaryk Univ, CEITEC, Brno, Czech Republic; Univ Hosp Brno, Dept Internal Med Hematol & Oncol, Brno, Czech Republic; Med Fac MU, Brno, Czech Republic.
    Athanasiadou, Anastasia
    G Papanicolaou Hosp, Dept Hematol, Thessaloniki, Greece; G Papanicolaou Hosp, HCT Unit, Exochi, Greece.
    Stamatopoulos, Kostas
    Ctr Res & Technol Hellas, Thermi, Greece.
    Haferlach, Claudia
    MLL Munich Leukemia Lab, Munich, Germany.
    Cytogenetic complexity in chronic lymphocytic leukemia: definitions, associations with other bio-markers and clinical impact2017Ingår i: Leukemia and Lymphoma, ISSN 1042-8194, E-ISSN 1029-2403, Vol. 58, nr Supplement: 1, s. 65-66Artikel i tidskrift (Övrigt vetenskapligt)
  • 106.
    Baliakas, Panagiotis
    et al.
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
    Mattsson, Mattias
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Hematologi.
    Hadzidimitriou, Anastasia
    Inst Appl Biosci, Thessaloniki, Greece..
    Minga, Eva
    Inst Appl Biosci, Thessaloniki, Greece..
    Agathangelidis, Andreas
    Inst Appl Biosci, Thessaloniki, Greece.;Univ Vita Salute San Raffaele, Milan, Italy.;IRCCS San Raffaele Sci Inst, Div Expt Oncol, Strateg Res Program CLL, Milan, Italy..
    Sutton, Lesley Ann
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
    Scarfo, Lydia
    Univ Vita Salute San Raffaele, Milan, Italy.;IRCCS San Raffaele Sci Inst, Div Expt Oncol, Strateg Res Program CLL, Milan, Italy..
    Davis, Zadie
    Royal Bournemouth Hosp, Dept Haematol, Bournemouth, Dorset, England..
    Yan, Xiao-Jie
    Northwell Hlth, Feinstein Inst Med Res, New York, NY USA..
    Plevova, Karla
    CEITEC Cent European Inst Technol, Masarykbrno, Czech Republic.;Univ Hosp Brno, Brno, Czech Republic..
    Sandberg, Yorick
    Univ Med Ctr Rotterdam, Erasmus MC, Dept Immunol, Rotterdam, Netherlands..
    Vojdeman, Fie J.
    Rigshosp, Dept Hematol, Copenhagen, Denmark..
    Tzenou, Tatiana
    Univ Athens, Dept Propaedeut Med 1, Athens, Greece..
    Chu, Charles C.
    Northwell Hlth, Feinstein Inst Med Res, New York, NY USA..
    Veronese, Silvio
    Osped Niguarda Ca Granda, Mol Pathol Unit, Niguarda Canc Ctr, Milan, Italy.;Osped Niguarda Ca Granda, Dept Haematol, Niguarda Canc Ctr, Milan, Italy..
    Mansouri, Larry
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
    Smedby, Karin E.
    Karolinska Inst, Clin Epidemiol Unit, Dept Med Solna, Stockholm, Sweden.;Karolinska Univ Hosp, Hematol Ctr, Stockholm, Sweden..
    Giudicelli, Veronique
    Univ Montpellier, Lab ImmunoGenet Mol LIGM, IMGT, IGH,UPR CNRS 1142, Montpellier, France..
    Nguyen-Khac, Florence
    Hematol Dept, Paris, France.;Univ Paris 06, Hop Pitie Salpetriere, Paris, France..
    Panagiotidis, Panagiotis
    Univ Athens, Dept Propaedeut Med 1, Athens, Greece..
    Juliusson, Gunnar
    Lund Univ & Hosp, Dept Hematol, Lund Stem Cell Ctr, Lund, Sweden..
    Anagnostopoulos, Achilles
    G Papanicolaou Hosp, Hematol Dept, Thessaloniki, Greece.;G Papanicolaou Hosp, HCT Unit, Thessaloniki, Greece..
    Lefranc, Marie-Paule
    Univ Montpellier, Lab ImmunoGenet Mol LIGM, IMGT, IGH,UPR CNRS 1142, Montpellier, France..
    Trentin, Livio
    Padova Univ, Hematol & Clin Immunol Branch, Dept Med, Sch Med, Padua, Italy.;Venetian Inst Mol Med, Padua, Italy..
    Catherwood, Mark
    Belfast City Hosp, Dept Hematooncol, Belfast, Antrim, North Ireland..
    Montillo, Marco
    Osped Niguarda Ca Granda, Mol Pathol Unit, Niguarda Canc Ctr, Milan, Italy.;Osped Niguarda Ca Granda, Dept Haematol, Niguarda Canc Ctr, Milan, Italy..
    Niemann, Carsten U.
    Rigshosp, Dept Hematol, Copenhagen, Denmark..
    Langerak, Anton W.
    Univ Med Ctr Rotterdam, Erasmus MC, Dept Immunol, Rotterdam, Netherlands..
    Pospisilova, Sarka
    CEITEC Cent European Inst Technol, Masarykbrno, Czech Republic.;Univ Hosp Brno, Brno, Czech Republic..
    Stavroyianni, Niki
    G Papanicolaou Hosp, Hematol Dept, Thessaloniki, Greece.;G Papanicolaou Hosp, HCT Unit, Thessaloniki, Greece..
    Chiorazzi, Nicholas
    Northwell Hlth, Feinstein Inst Med Res, New York, NY USA..
    Oscier, David
    Royal Bournemouth Hosp, Dept Haematol, Bournemouth, Dorset, England..
    Jelinek, Diane F.
    Mayo Clin, Dept Immunol, Rochester, MN USA..
    Shanafelt, Tait
    Mayo Clin, Dept Med, Div Hematol, Rochester, MN USA..
    Darzentas, Nikos
    CEITEC Cent European Inst Technol, Masarykbrno, Czech Republic..
    Belessi, Chrysoula
    Nikea Gen Hosp, Dept Hematol, Piraeus, Greece..
    Davi, Frederic
    Hematol Dept, Paris, France..
    Ghia, Paolo
    Univ Vita Salute San Raffaele, Milan, Italy.;IRCCS San Raffaele Sci Inst, Div Expt Oncol, Strateg Res Program CLL, Milan, Italy..
    Rosenquist, Richard
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. Karolinska Inst, Dept Mol Med & Surg, Stockholm, Sweden..
    Stamatopoulos, Kostas
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab. Inst Appl Biosci, Thessaloniki, Greece.;G Papanicolaou Hosp, Hematol Dept, Thessaloniki, Greece.;G Papanicolaou Hosp, HCT Unit, Thessaloniki, Greece..
    No improvement in long-term survival over time for chronic lymphocytic leukemia patients in stereotyped subsets #1 and #2 treated with chemo(immuno)therapy2018Ingår i: Haematologica, ISSN 0390-6078, E-ISSN 1592-8721, Vol. 103, nr 4, s. E158-E161Artikel i tidskrift (Refereegranskat)
  • 107.
    Baliakas, Panagiotis
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
    Mattsson, Mattias
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Hematologi. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
    Stamatopoulos, Kostas
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
    Rosenquist Brandell, Richard
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
    Prognostic indices in chronic lymphocytic leukaemia: where do we stand how do we proceed?2016Ingår i: Journal of Internal Medicine, ISSN 0954-6820, E-ISSN 1365-2796, Vol. 279, nr 4, s. 347-357Artikel, forskningsöversikt (Refereegranskat)
    Abstract [en]

    The remarkable clinical heterogeneity in chronic lymphocytic leukaemia (CLL) has highlighted the need for prognostic and predictive algorithms that can be employed in clinical practice to assist patient management and therapy decisions. Over the last 20 years, this research field has been rewarding and many novel prognostic factors have been identified, especially at the molecular genetic level. Whilst detection of recurrent cytogenetic aberrations and determination of the immunoglobulin heavy variable gene somatic hypermutation status have an established role in outcome prediction, next-generation sequencing has recently revealed novel mutated genes with clinical relevance (e.g. NOTCH1, SF3B1 and BIRC3). Efforts have been made to combine variables into prognostic indices; however, none has been universally adopted. Although a unifying model for all groups of patients and in all situations is appealing, this may prove difficult to attain. Alternatively, focused efforts on patient subgroups in the same clinical context and at certain clinically relevant 'decision points', that is at diagnosis and at initiation of first-line or subsequent treatments, may provide a more accurate approach. In this review, we discuss the advantages and disadvantages as well as the clinical applicability of three recently proposed prognostic models, the MD Anderson nomogram, the integrated cytogenetic and mutational model and the CLL-international prognostic index. We also consider future directions taking into account novel aspects of the disease, such as the tumour microenvironment and the dynamics of (sub)clonal evolution. These aspects are particularly relevant in view of the increasing number of new targeted therapies that have recently emerged.

  • 108.
    Baliakas, Panagiotis
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
    Moreno, Carol
    Hosp Santa Creu & Sant Pau, Barcelona, Spain.
    Cuellar, Carolina
    St Pau Hosp, Barcelona, Spain.
    Scarfo, Lydia
    Osped San Raffaele, Segrate, Italy.
    Ghia, Paolo
    Univ Vita Salute San Raffaele, Milan, Italy; IRCCS Ist Sci San Raffaele, Milan, Italy.
    Brandell, Richard Rosenquist
    Karolinska Inst, Stockholm, Sweden.
    Mattsson, Mattias
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
    Vicente, Eva Puy
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Hematologi.
    Is FCR the treatment of choice for IGHV mutated CLL without poor FISH cytogenetics?2017Ingår i: Leukemia and Lymphoma, ISSN 1042-8194, E-ISSN 1029-2403, Vol. 58, nr Supplement: 1, s. 170-171Artikel i tidskrift (Övrigt vetenskapligt)
  • 109.
    Baliakas, Panagiotis
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Puiggros, A.
    Hosp del Mar, Lab Citogenet Mol, Serv Patol, Barcelona, Spain.;Spanish Cooperat Grp Hematol Cytogenet, Barcelona, Spain..
    Xochelli, Aliki
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Sutton, L. -A
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Nguyen-Khac, F.
    Univ Paris 06, Hop Pitie Salpetriere, Hematol Dept, Paris, France.;Univ Paris 06, Hop Pitie Salpetriere, Paris, France..
    Gardiner, A.
    Royal Bournemouth Hosp, Dept Haematol, Bournemouth, Dorset, England..
    Plevova, K.
    Masaryk Univ, Cent European Inst Technol, Brno, Czech Republic.;Univ Hosp Brno, Brno, Czech Republic..
    Ortega, M.
    Spanish Cooperat Grp Hematol Cytogenet, Barcelona, Spain.;Hosp Univ Vall dHebron, Barcelona, Spain..
    Collado, R.
    Spanish Cooperat Grp Hematol Cytogenet, Barcelona, Spain.;Consorcio Hosp Gen Univ Valencia, Valencia, Spain..
    Gonzalez, T.
    Spanish Cooperat Grp Hematol Cytogenet, Barcelona, Spain.;Fdn Publ Galega Med Xen, Santiago De Compostela, Spain..
    Granada, I.
    Spanish Cooperat Grp Hematol Cytogenet, Barcelona, Spain.;Hosp Badalona Germans Trias & Pujol, Badalona, Spain..
    Luno, E.
    Spanish Cooperat Grp Hematol Cytogenet, Barcelona, Spain.;Hosp Univ Cent Asturias, Oviedo, Spain..
    Kotaskova, J.
    Masaryk Univ, Cent European Inst Technol, Brno, Czech Republic.;Univ Hosp Brno, Brno, Czech Republic..
    Davis, Z.
    Royal Bournemouth Hosp, Dept Haematol, Bournemouth, Dorset, England..
    Anagnostopoulos, A.
    G Papanicolaou Hosp, Hematol Dept, Thessaloniki, Greece.;G Papanicolaou Hosp, HCT Unit, Thessaloniki, Greece..
    Strefford, J.
    Univ Southampton, Fac Med, Canc Sci, Southampton SO9 5NH, Hants, England..
    Pospisilova, S.
    Masaryk Univ, Cent European Inst Technol, Brno, Czech Republic.;Univ Hosp Brno, Brno, Czech Republic..
    Davi, F.
    Univ Paris 06, Hop Pitie Salpetriere, Hematol Dept, Paris, France.;Univ Paris 06, Hop Pitie Salpetriere, Paris, France..
    Athanasiadou, A.
    G Papanicolaou Hosp, Hematol Dept, Thessaloniki, Greece.;G Papanicolaou Hosp, HCT Unit, Thessaloniki, Greece..
    Rosenquist, Richard Brandell
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Oscier, D.
    Royal Bournemouth Hosp, Dept Haematol, Bournemouth, Dorset, England..
    Sola, B. Espinet
    Hosp del Mar, Lab Citogenet Mol, Serv Patol, Barcelona, Spain.;Spanish Cooperat Grp Hematol Cytogenet, Barcelona, Spain..
    Stamatopoulos, Kostas
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    ADDITIONAL TRISOMIES AMONGST PATIENTS WITH CHRONIC LYMPHOCYTIC LEUKEMIA CARRYING TRISOMY 12: THE PARTNER CHROMOSOME MAKES A DIFFERENCE2015Ingår i: Haematologica, ISSN 0390-6078, E-ISSN 1592-8721, Vol. 100, s. 224-224Artikel i tidskrift (Övrigt vetenskapligt)
  • 110.
    Baliakas, Panagiotis
    et al.
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
    Strefford, Jonathan C.
    Bikos, Vasilis
    Parry, Marina
    Stamatopoulos, Kostas
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Oscier, David
    Splenic marginal-zone lymphoma: ontogeny and genetics2015Ingår i: Leukemia and Lymphoma, ISSN 1042-8194, E-ISSN 1029-2403, Vol. 56, nr 2, s. 301-310Artikel, forskningsöversikt (Refereegranskat)
    Abstract [en]

    Splenic marginal-zone lymphoma (SMZL) is a rare tumor that has recently emerged as a prototype for how the interplay between genetics and environment shapes the natural history of lymphomas. Indeed, the recent identification of molecular immunogenetic subgroups within SMZL may prove to be relevant not only for the sub-classification of the disease but also for improved understanding of the underlying biology. In contrast to other B-cell lymphomas, SMZL lacks a characteristic genetic lesion, although the majority of cases harbor genomic aberrations, as recently revealed by high-throughput studies that identified recurrent genetic aberrations, several in pathways related to marginal-zone differentiation and B-cell signaling. Here we provide an overview of recent research into the molecular and cellular biology of SMZL and related disorders, with special emphasis on immunogenetics and genomic aberrations, and discuss the value of molecular and cellular markers for the diagnosis and differential diagnosis of these entities.

  • 111.
    Baltzer, Nicholas
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Biologiska sektionen, Institutionen för cell- och molekylärbiologi, Beräkningsbiologi och bioinformatik. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Stockholm County, Sweden.
    Sundström, Karin
    Karolinska Inst, Dept Lab Med, Stockholm, Stockholm Count, Sweden..
    Nygård, Jan F.
    Canc Registry Norway, Dept Registry Informat, Oslo, Oslo County, Norway..
    Dillner, Joakim
    Karolinska Inst, Dept Lab Med, Stockholm, Stockholm Count, Sweden..
    Komorowski, Jan
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Biologiska sektionen, Institutionen för cell- och molekylärbiologi, Beräkningsbiologi och bioinformatik. Polish Acad Sci, Inst Comp Sci, Warsaw, Warsaw County, Poland..
    Risk stratification in cervical cancer screening by complete screening history: Applying bioinformatics to a general screening population2017Ingår i: International Journal of Cancer, ISSN 0020-7136, E-ISSN 1097-0215, Vol. 141, nr 1, s. 200-209Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Women screened for cervical cancer in Sweden are currently treated under a one-size-fits-all programme, which has been successful in reducing the incidence of cervical cancer but does not use all of the participants' available medical information. This study aimed to use women's complete cervical screening histories to identify diagnostic patterns that may indicate an increased risk of developing cervical cancer. A nationwide case-control study was performed where cervical cancer screening data from 125,476 women with a maximum follow-up of 10 years were evaluated for patterns of SNOMED diagnoses. The cancer development risk was estimated for a number of different screening history patterns and expressed as Odds Ratios (OR), with a history of 4 benign cervical tests as reference, using logistic regression. The overall performance of the model was moderate (64% accuracy, 71% area under curve) with 61-62% of the study population showing no specific patterns associated with risk. However, predictions for high-risk groups as defined by screening history patterns were highly discriminatory with ORs ranging from 8 to 36. The model for computing risk performed consistently across different screening history lengths, and several patterns predicted cancer outcomes. The results show the presence of risk-increasing and risk-decreasing factors in the screening history. Thus it is feasible to identify subgroups based on their complete screening histories. Several high-risk subgroups identified might benefit from an increased screening density. Some low-risk subgroups identified could likely have a moderately reduced screening density without additional risk.

  • 112.
    Bandopadhayay, Pratiti
    et al.
    Departments of Cancer Biology and Pediatric Neuro-Oncology, Department of Pediatric Oncology, Dana-Farber Cancer Institute and Division of Pediatric Hematology/Oncology, Boston Children's Hospital; The Broad Institute of MIT and Harvard, Cambridge, Massachusetts.
    Bergthold, Guillaume
    Departments of Cancer Biology, Department of Pediatric Oncology, Dana-Farber Cancer Institute and Division of Pediatric Hematology/Oncology, Boston Children's Hospital; The Broad Institute of MIT and Harvard, Cambridge, Massachusetts.
    Nguyen, Brian
    Schubert, Simone
    Gholamin, Sharareh
    Tang, Yujie
    Bolin, Sara
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Cancer och vaskulärbiologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Schumacher, Steven E.
    Zeid, Rhamy
    Masoud, Sabran
    Yu, Furong
    Vue, Nujsaubnusi
    Gibson, William J.
    Paolella, Brenton R.
    Mitra, Siddhartha S.
    Cheshier, Samuel H.
    Qi, Jun
    Liu, Kun-Wei
    Wechsler-Reya, Robert
    Weiss, William A.
    Department of Neurology, Pediatrics, and Neurosurgery, University of California, San Francisco, California.
    Swartling, Fredrik J.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Cancer och vaskulärbiologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Kieran, Mark W.
    Bradner, James E.
    Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School; The Broad Institute of MIT and Harvard, Cambridge, Massachusetts.
    Beroukhim, Rameen
    Departments of Cancer Biology and Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School; Center for Cancer Genome Characterization, Dana-Farber Cancer Institute, Boston; The Broad Institute of MIT and Harvard, Cambridge, Massachusetts;.
    Cho, Yoon-Jae
    Departments of Neurology and Neurological Sciences and Neurosurgery, Stanford University School of Medicine; Stanford Cancer Institute, Stanford University Medical Center, Stanford.
    BET Bromodomain Inhibition of MYC-Amplified Medulloblastoma2014Ingår i: Clinical Cancer Research, ISSN 1078-0432, E-ISSN 1557-3265, Vol. 20, nr 4, s. 912-925Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Purpose:

    MYC-amplified medulloblastomas are highly lethal tumors. Bromodomain and extraterminal (BET) bromodomain inhibition has recently been shown to suppress MYC-associated transcriptional activity in other cancers. The compound JQ1 inhibits BET bromodomain-containing proteins, including BRD4. Here, we investigate BET bromodomain targeting for the treatment of MYC-amplified medulloblastoma.

    Experimental Design:

    We evaluated the effects of genetic and pharmacologic inhibition of BET bromodomains on proliferation, cell cycle, and apoptosis in established and newly generated patient- and genetically engineered mouse model (GEMM)-derived medulloblastoma cell lines and xenografts that harbored amplifications of MYC or MYCN. We also assessed the effect of JQ1 on MYC expression and global MYC-associated transcriptional activity. We assessed the in vivo efficacy of JQ1 in orthotopic xenografts established in immunocompromised mice.

    Results:

    Treatment of MYC-amplified medulloblastoma cells with JQ1 decreased cell viability associated with arrest at G1 and apoptosis. We observed downregulation of MYC expression and confirmed the inhibition of MYC-associated transcriptional targets. The exogenous expression of MYC from a retroviral promoter reduced the effect of JQ1 on cell viability, suggesting that attenuated levels of MYC contribute to the functional effects of JQ1. JQ1 significantly prolonged the survival of orthotopic xenograft models of MYC-amplified medulloblastoma (P < 0.001). Xenografts harvested from mice after five doses of JQ1 had reduced the expression of MYC mRNA and a reduced proliferative index.

    Conclusion:

    JQ1 suppresses MYC expression and MYC-associated transcriptional activity in medulloblastomas, resulting in an overall decrease in medulloblastoma cell viability. These preclinical findings highlight the promise of BET bromodomain inhibitors as novel agents for MYC-amplified medulloblastoma.

  • 113. Bandopadhayay, Pratiti
    et al.
    Bergthold, Guillaume
    Nguyen, Brian
    Schubert, Simone
    Gholamin, Sharareh
    Tang, Yujie
    Bolin, Sara
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Cancer och vaskulärbiologi.
    Schumacher, Steven
    Zeid, Rhamy
    Masoud, Sabran
    Yu, Furong
    Vue, Nujsaubnusi
    Gibson, William
    Paolella, Brenton
    Mitra, Siddhartha
    Cheshier, Samuel
    Qi, Jun
    Liu, Kun-Wei
    Wechsler-Reya, Robert
    Weiss, William
    Swartling, Fredrik Johansson
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Cancer och vaskulärbiologi.
    Kieran, Mark W.
    Bradner, James E.
    Beroukhim, Rameen
    Cho, Yoon-Jae
    Medulloblastoma models which harbor amplifications of myc family members are sensitive to BET-Bromodomain inhibition2014Ingår i: Neuro-Oncology, ISSN 1522-8517, E-ISSN 1523-5866, Vol. 16, s. 90-90Artikel i tidskrift (Övrigt vetenskapligt)
  • 114. Banefelt, J.
    et al.
    Liede, A.
    Mesterton, J.
    Stålhammar, Jan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för folkhälso- och vårdvetenskap, Allmänmedicin och preventivmedicin.
    Hernandez, R. K.
    Sobocki, P.
    Persson, Bo-Eric
    Uppsala universitet.
    Survival and clinical metastases among prostate cancer patients treated with androgen deprivation therapy in Sweden2014Ingår i: Cancer Epidemiology, ISSN 1877-7821, E-ISSN 1877-783X, Vol. 38, nr 4, s. 442-447Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Objectives: To examine the incidence of metastases and clinical course of prostate cancer patients who are without confirmed metastasis when initiating androgen deprivation therapy (ADT). Methods: Retrospective cohort study conducted using electronic medical records from Swedish outpatient urology clinics linked to national mandatory registries to capture medical and demographic data. Prostate cancer patients initiating ADT between 2000 and 2010 were followed from initiation of ADT to metastasis, death, and/or end of follow-up. Results: The 5-year cumulative incidence (CI) of metastasis was 18%. Survival was 60% after 5 years; results were similar for bone metastasis-free survival. The 5-year CI of castration-resistant prostate cancer (CRPC) was 50% and the median survival from CRPC development was 2.7 years. Serum prostate-specific antigen (PSA) levels and PSA doubling time were strong predictors of bone metastasis, any metastasis, and death. Conclusion: This study provides understanding of the clinical course of prostate cancer patients without confirmed metastasis treated with ADT in Sweden. Greater PSA values and shorter PSA doubling time (particularly <= 6 months) were associated with increased risk of bone metastasis, any metastasis, and death.

  • 115.
    Barash, Uri
    et al.
    Technion, Rappaport Fac Med, Canc & Vasc Biol Res Ctr, POB 9649, IL-31096 Haifa, Israel.
    Lapidot, Moshe
    Rambam Hlth Care Campus, Dept Gen Thorac Surg, Haifa, Israel.
    Zohar, Yaniv
    Rambam Hlth Care Campus, Dept Pathol, Haifa, Israel.
    Loomis, Cynthia
    NYU, Sch Med, Dept Cardiothorac Surg, Langone Med Ctr, New York, NY USA.
    Moreira, Andre
    NYU, Sch Med, Dept Cardiothorac Surg, Langone Med Ctr, New York, NY USA.
    Feld, Sari
    Technion, Rappaport Fac Med, Canc & Vasc Biol Res Ctr, POB 9649, IL-31096 Haifa, Israel.
    Goparaju, Chandra
    NYU, Sch Med, Dept Cardiothorac Surg, Langone Med Ctr, New York, NY USA.
    Yang, Haining
    Univ Hawaii, Ctr Canc, Honolulu, HI 96822 USA.
    Hammond, Edward
    Zucero Therapeut, Darra, Qld, Australia.
    Zhang, Ganlin
    Beijing Hosp Tradit Chinese Med, Beijing, Peoples R China.
    Li, Jin-Ping
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk biokemi och mikrobiologi.
    Ilan, Neta
    Technion, Rappaport Fac Med, Canc & Vasc Biol Res Ctr, POB 9649, IL-31096 Haifa, Israel.
    Nagler, Arnon
    Chaim Sheba Med Ctr, Dept Hematol & Bone Marrow Transplantat, Tel Hashomer, Israel.
    Pass, Harvey I.
    NYU, Sch Med, Dept Cardiothorac Surg, Langone Med Ctr, New York, NY USA.
    Vlodavsky, Israel
    Technion, Rappaport Fac Med, Canc & Vasc Biol Res Ctr, POB 9649, IL-31096 Haifa, Israel.
    Involvement of Heparanase in the Pathogenesis of Mesothelioma: Basic Aspects and Clinical Applications2018Ingår i: Journal of the National Cancer Institute, ISSN 0027-8874, E-ISSN 1460-2105, Vol. 110, nr 10, s. 1102-1114Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Mammalian cells express a single functional heparanase, an endoglycosidase that cleaves heparan sulfate and thereby promotes tumor metastasis, angiogenesis, and inflammation. Malignant mesothelioma is highly aggressive and has a poor prognosis because of the lack of markers for early diagnosis and resistance to conventional therapies. The purpose of this study was to elucidate the mode of action and biological significance of heparanase in mesothelioma and test the efficacy of heparanase inhibitors in the treatment of this malignancy.

    Methods: The involvement of heparanase in mesothelioma was investigated by applying mouse models of mesothelioma and testing the effect of heparanase gene silencing (n = 18 mice per experiment; two different models) and heparanase inhibitors (ie, PG545, defibrotide; n = 18 per experiment; six different models). Synchronous pleural effusion and plasma samples from patients with mesothelioma (n = 35), other malignancies (12 non-small cell lung cancer, two small cell lung carcinoma, four breast cancer, three gastrointestinal cancers, two lymphomas), and benign effusions (five patients) were collected and analyzed for heparanase content (enzyme-linked immunosorbent assay). Eighty-one mesothelioma biopsies were analyzed by H-Score for the prognostic impact of heparanase using immunohistochemistry. All statistical tests were two-sided.

    Results: Mesothelioma tumor growth, measured by bioluminescence or tumor weight at termination, was markedly attenuated by heparanase gene silencing (P = .02) and by heparanase inhibitors (PG545 and defibrotide; P < .001 and P = .01, respectively). A marked increase in survival of the mesothelioma-bearing mice (P < .001) was recorded. Heparanase inhibitors were more potent in vivo than conventional chemotherapy. Clinically, heparanase levels in patients' pleural effusions could distinguish between malignant and benign effusions, and a heparanase H-score above 90 was associated with reduced patient survival (hazard ratio = 1.89, 95% confidence interval = 1.09 to 3.27, P = .03).

    Conclusions: Our results imply that heparanase is clinically relevant in mesothelioma development. Given these preclinical and clinical data, heparanase appears to be an important mediator of mesothelioma, and heparanase inhibitors are worthy of investigation as a new therapeutic modality in mesothelioma clinical trials.

  • 116.
    Barash, Uri
    et al.
    Rappaport Fac Med, TICC, Haifa, Israel.
    Spyrou, Argyris
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi.
    Liu, Pei
    Shantou Univ, Med Coll, Shantou, Peoples R China.
    Vlodaysky, Euvgeni
    Rambam Hlth Care Campus, Dept Pathol, Haifa, Israel.
    Zhu, Chenchen
    Shantou Univ, Med Coll, Shantou, Peoples R China.
    Luo, Juanjuan
    Shantou Univ, Med Coll, Shantou, Peoples R China.
    Su, Dongsheng
    Shantou Univ, Med Coll, Shantou, Peoples R China.
    Ilhan, Neta
    Rappaport Fac Med, TICC, Haifa, Israel.
    Forsberg Nilsson, Karin
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Vlodaysky, Israel
    Rappaport Fac Med, TICC, Haifa, Israel.
    Yang, Xiaojun
    Shantou Univ, Med Coll, Shantou, Peoples R China.
    Heparanase promotes glioma progression via enhancing CD24 expression2019Ingår i: International Journal of Cancer, ISSN 0020-7136, E-ISSN 1097-0215, Vol. 145, nr 6, s. 1596-1608Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Heparanase is an endo-beta-d-glucuronidase that cleaves heparan sulfate (HS) side chains of heparan sulfate proteoglycans. Compelling evidence tie heparanase levels with all steps of tumor formation including tumor initiation, growth, metastasis and chemo-resistance, likely involving augmentation of signaling pathways and gene transcription. In order to reveal the molecular mechanism(s) underlying the protumorigenic properties of heparanase, we established an inducible (Tet-on) system in U87 human glioma cells and applied gene array methodology in order to identify genes associated with heparanase induction. We found that CD24, a mucin-like cell adhesion protein, is consistently upregulated by heparanase and by heparanase splice variant devoid of enzymatic activity, whereas heparanase gene silencing was associated with decreased CD24 expression. This finding was further substantiated by a similar pattern of heparanase and CD24 immunostaining in glioma patients (Pearson's correlation; R = 0.66, p = 0.00001). Noteworthy, overexpression of CD24 stimulated glioma cell migration, invasion, colony formation in soft agar and tumor growth in mice suggesting that CD24 functions promote tumor growth. Likewise, anti-CD24 neutralizing monoclonal antibody attenuated glioma tumor growth, and a similar inhibition was observed in mice treated with a neutralizing mAb directed against L1 cell adhesion molecule (L1CAM), a ligand for CD24. Importantly, significant shorter patient survival was found in heparanase-high/CD24-high tumors vs. heparanase-high/CD24-low tumors for both high-grade and low-grade glioma (p = 0.02). Our results thus uncover a novel heparanase-CD24-L1CAM axis that plays a significant role in glioma tumorigenesis.

  • 117.
    Barazeghi, Elham
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Studies of epigenetic deregulation in parathyroid tumors and small intestinal neuroendocrine tumors2017Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [en]

    Deregulation of the epigenome is associated with the initiation and progression of various types of human cancers. Here we investigated the level of 5-hydroxymethylcytosine (5hmC), expression and function of TET1 and TET2, and DNA methylation in parathyroid tumors and small intestinal neuroendocrine tumors (SI-NETs).

    In Paper I, an undetectable/very low level of 5hmC in parathyroid carcinomas (PCs) compared to parathyroid adenomas with positive staining, suggested that 5hmC may represent a novel biomarker for parathyroid malignancy. Immunohistochemistry revealed that increased tumor weight in adenomas was associated with a more aberrant staining pattern of 5hmC and TET1. A growth regulatory role of TET1 was demonstrated in parathyroid tumor cells.

    Paper II revealed that the expression of TET2 was also deregulated in PCs, and promoter hypermethylation was detected in PCs when compared to normal parathyroid tissues. 5-aza-2′-deoxycytidine treatment of a primary PC cell culture induced TET2 expression and further supported involvement of promoter hypermethylation in TET2 gene repression. TET2 knockout demonstrated a role for TET2 in cell growth and migration, and as a candidate tumor suppressor gene.

    In Paper III, variable levels of 5hmC, and aberrant expression of TET1 and TET2 were observed in SI-NETs. We demonstrated a growth regulatory role for TET1, and cytoplasmic expression with absent nuclear localization for TET2 in SI-NETs. In vitro experiments supported the involvement of exportin-1 in TET2 mislocalization, and suggested that KPT-330/selinexor, an orally bioavailable selective inhibitor of exportin-1 and nuclear export, with anti-cancer effects, could be further investigated as a therapeutic option in patients with SI-NETs.

    In Paper IV, DNA methylation was compared between SI-NET primary tumors and metastases by reduced representation bisulfite sequencing. Three differentially methylated regions (DMR) on chromosome 18 were detected and chosen for further analyses. The PTPRM gene, at 18p11, displayed low expression in SI-NETs with high levels of methylation in the presumed CpG island shores, and in the DMR rather than the promoter region or exon 1/intron 1 boundary. PTPRM overexpression resulted in inhibition of cell growth, proliferation, and induction of apoptosis in SI-NET cells, suggesting a role for PTPRM as an epigenetically deregulated candidate tumor suppressor gene in SI-NETs.  

    Delarbeten
    1. 5-Hydroxymethylcytosine discriminates between parathyroid adenoma and carcinoma
    Öppna denna publikation i ny flik eller fönster >>5-Hydroxymethylcytosine discriminates between parathyroid adenoma and carcinoma
    Visa övriga...
    2016 (Engelska)Ingår i: Clinical Epigenetics, E-ISSN 1868-7083, Vol. 8, artikel-id 31Artikel i tidskrift (Refereegranskat) Published
    Abstract [en]

    Background: Primary hyperparathyroidism is characterized by enlarged parathyroid glands due to an adenoma (80-85 %) or multiglandular disease (similar to 15 %) causing hypersecretion of parathyroid hormone (PTH) and generally hypercalcemia. Parathyroid cancer is rare (<1-5 %). The epigenetic mark 5-hydroxymethylcytosine (5hmC) is reduced in various cancers, and this may involve reduced expression of the ten-eleven translocation 1 (TET1) enzyme. Here, we have performed novel experiments to determine the 5hmC level and TET1 protein expression in 43 parathyroid adenomas (PAs) and 17 parathyroid carcinomas (PCs) from patients who had local invasion or metastases and to address a potential growth regulatory role of TET1. Results: The global 5hmC level was determined by a semi-quantitative DNA immune-dot blot assay in a smaller number of tumors. The global 5hmC level was reduced in nine PCs and 15 PAs compared to four normal tissue samples (p < 0.05), and it was most severely reduced in the PCs. By immunohistochemistry, all 17 PCs stained negatively for 5hmC and TET1 showed negative or variably heterogeneous staining for the majority. All 43 PAs displayed positive 5hmC staining, and a similar aberrant staining pattern of 5hmC and TET1 was seen in about half of the PAs. Western blotting analysis of two PCs and nine PAs showed variable TET1 protein expression levels. A significantly higher tumor weight was associated to PAs displaying a more severe aberrant staining pattern of 5hmC and TET1. Overexpression of TET1 in a colony forming assay inhibited parathyroid tumor cell growth. Conclusions: 5hmC can discriminate between PAs and PCs. Whether 5hmC represents a novel marker for malignancy warrants further analysis in additional parathyroid tumor cohorts. The results support a growth regulatory role of TET1 in parathyroid tissue.

    Nyckelord
    5-hydroxymethylcytosine, 5hmC, Parathyroid cancer, Primary hyperparathyroidism, TET1
    Nationell ämneskategori
    Cancer och onkologi
    Identifikatorer
    urn:nbn:se:uu:diva-282795 (URN)10.1186/s13148-016-0197-2 (DOI)000371782000002 ()26973719 (PubMedID)
    Forskningsfinansiär
    Cancerfonden
    Tillgänglig från: 2016-04-14 Skapad: 2016-04-07 Senast uppdaterad: 2017-11-30Bibliografiskt granskad
    2. A role for TET2 in parathyroid carcinoma
    Öppna denna publikation i ny flik eller fönster >>A role for TET2 in parathyroid carcinoma
    Visa övriga...
    2017 (Engelska)Ingår i: Endocrine-Related Cancer, ISSN 1351-0088, E-ISSN 1479-6821, Vol. 24, nr 7, s. 329-338Artikel i tidskrift (Refereegranskat) Published
    Abstract [en]

    Primary hyperparathyroidism (pHPT) is rarely caused by parathyroid carcinoma (PC, <1-5% of pHPT cases). The TET proteins oxidize the epigenetic mark 5-methylcytosine to 5-hydroxymethylcytosine (5hmC) and inactivation by mutation or epigenetic deregulation of TET1 and TET2 play important roles in various cancers. Recently, we found that 5hmC was severely reduced in all of the analyzed PCs and with deranged expression of TET1 for the majority of PCs. Here, we have examined the expression of the TET2 protein in 15 5hmC-negative PCs from patients who had local invasion or metastases. Cell growth and cell migratory roles for TET2 as well as epigenetic deregulated expression were addressed. Immunohistochemistry revealed very low/undetectable expression of TET2 in all PCs and verified for two PCs that were available for western blotting analysis. Knockdown of TET2 in the parathyroid cell line sHPT-1 resulted in increased cell growth and increased cell migration. DNA sequencing of TET2 in PCs revealed two common variants and no obvious inactivating mutations. Quantitative bisulfite pyrosequencing analysis of the TET2 promoter CpG island revealed higher CpG methylation level in the PCs compared to that in normal tissues and treatment of a PC primary cell culture with the DNA methylation inhibitor 5-aza-2'-deoxycytidine caused increased expression of the methylated TET2 gene. Hence, the data suggest that deregulated expression of TET2 by DNA hypermethylation may contribute to the aberrantly low level of 5hmC in PCs and further that TET2 plays a cell growth and cell migratory regulatory role and may constitute a parathyroid tumor suppressor gene.

    Nyckelord
    5-hydroxymethylcytosine, TET2, primary hyperparathyroidism, parathyroid carcinoma, promoter hypermethylation, tumor suppressor
    Nationell ämneskategori
    Endokrinologi och diabetes Cancer och onkologi
    Identifikatorer
    urn:nbn:se:uu:diva-330022 (URN)10.1530/ERC-17-0009 (DOI)000404978400007 ()
    Forskningsfinansiär
    Cancerfonden
    Tillgänglig från: 2017-10-09 Skapad: 2017-10-09 Senast uppdaterad: 2018-04-03Bibliografiskt granskad
    3. Decrease of 5-hydroxymethylcytosine and TET1 with nuclear exclusion of TET2 in small intestinal neuroendocrine tumors
    Öppna denna publikation i ny flik eller fönster >>Decrease of 5-hydroxymethylcytosine and TET1 with nuclear exclusion of TET2 in small intestinal neuroendocrine tumors
    Visa övriga...
    (Engelska)Ingår i: Artikel i tidskrift (Refereegranskat) Submitted
    Nationell ämneskategori
    Cancer och onkologi Endokrinologi och diabetes
    Identifikatorer
    urn:nbn:se:uu:diva-330575 (URN)
    Tillgänglig från: 2017-10-03 Skapad: 2017-10-03 Senast uppdaterad: 2017-10-04
    4. Reduced representation bisulfite sequencing of small intestinal neuroendocrine tumors identifies PTPRM as a novel candidate tumor suppressor gene
    Öppna denna publikation i ny flik eller fönster >>Reduced representation bisulfite sequencing of small intestinal neuroendocrine tumors identifies PTPRM as a novel candidate tumor suppressor gene
    Visa övriga...
    (Engelska)Ingår i: Artikel i tidskrift (Refereegranskat) Submitted
    Nationell ämneskategori
    Cancer och onkologi Endokrinologi och diabetes
    Identifikatorer
    urn:nbn:se:uu:diva-330794 (URN)
    Tillgänglig från: 2017-10-04 Skapad: 2017-10-04 Senast uppdaterad: 2017-10-04
  • 118.
    Barazeghi, Elham
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Gill, Anthony J.
    Royal N Shore Hosp, Dept Anat Pathol, St Leonards, NSW 2065, Australia.;Univ Sydney, Sydney, NSW 2006, Australia..
    Sidhu, Stan
    Univ Sydney, Sydney, NSW 2006, Australia.;Royal N Shore Hosp, Dept Surg, St Leonards, NSW 2065, Australia..
    Norlen, Olov
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi. Univ Sydney, Sydney, NSW 2006, Australia.;Royal N Shore Hosp, Dept Surg, St Leonards, NSW 2065, Australia..
    Dina, Roberto
    Univ London Imperial Coll Sci Technol & Med, Hammersmith Hosp, Dept Histopathol, London, England..
    Palazzo, F. Fausto
    Univ London Imperial Coll Sci Technol & Med, Hammersmith Hosp, Endocrine Surg, London, England..
    Hellman, Per
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Stålberg, Peter
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Westin, Gunnar
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    5-Hydroxymethylcytosine discriminates between parathyroid adenoma and carcinoma2016Ingår i: Clinical Epigenetics, E-ISSN 1868-7083, Vol. 8, artikel-id 31Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Primary hyperparathyroidism is characterized by enlarged parathyroid glands due to an adenoma (80-85 %) or multiglandular disease (similar to 15 %) causing hypersecretion of parathyroid hormone (PTH) and generally hypercalcemia. Parathyroid cancer is rare (<1-5 %). The epigenetic mark 5-hydroxymethylcytosine (5hmC) is reduced in various cancers, and this may involve reduced expression of the ten-eleven translocation 1 (TET1) enzyme. Here, we have performed novel experiments to determine the 5hmC level and TET1 protein expression in 43 parathyroid adenomas (PAs) and 17 parathyroid carcinomas (PCs) from patients who had local invasion or metastases and to address a potential growth regulatory role of TET1. Results: The global 5hmC level was determined by a semi-quantitative DNA immune-dot blot assay in a smaller number of tumors. The global 5hmC level was reduced in nine PCs and 15 PAs compared to four normal tissue samples (p < 0.05), and it was most severely reduced in the PCs. By immunohistochemistry, all 17 PCs stained negatively for 5hmC and TET1 showed negative or variably heterogeneous staining for the majority. All 43 PAs displayed positive 5hmC staining, and a similar aberrant staining pattern of 5hmC and TET1 was seen in about half of the PAs. Western blotting analysis of two PCs and nine PAs showed variable TET1 protein expression levels. A significantly higher tumor weight was associated to PAs displaying a more severe aberrant staining pattern of 5hmC and TET1. Overexpression of TET1 in a colony forming assay inhibited parathyroid tumor cell growth. Conclusions: 5hmC can discriminate between PAs and PCs. Whether 5hmC represents a novel marker for malignancy warrants further analysis in additional parathyroid tumor cohorts. The results support a growth regulatory role of TET1 in parathyroid tissue.

  • 119.
    Barazeghi, Elham
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Gill, Anthony J.
    Kolling Inst Med Res, Canc Diag & Pathol Res Grp, St Leonards, NSW, Australia..
    Sidhu, Stan
    Royal North Shore Hosp, Dept Surg, St Leonards, NSW, Australia.;Univ Sydney, Sydney, NSW, Australia..
    Norlen, Olov
    Uppsala Univ, Rudbeck Lab, Endocrine Unit, Dept Surg Sci, Uppsala, Sweden.;Royal North Shore Hosp, Dept Surg, St Leonards, NSW, Australia.;Univ Sydney, Sydney, NSW, Australia..
    Dina, Roberto
    Imperial Coll, Hammersmith Hosp, Dept Histopathol, London, England..
    Palazzo, F. Fausto
    Imperial Coll, Hammersmith Hosp, Dept Endocrine Surg, London, England..
    Hellman, Per
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Stålberg, Peter
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Westin, Gunnar
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    A role for TET2 in parathyroid carcinoma2017Ingår i: Endocrine-Related Cancer, ISSN 1351-0088, E-ISSN 1479-6821, Vol. 24, nr 7, s. 329-338Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Primary hyperparathyroidism (pHPT) is rarely caused by parathyroid carcinoma (PC, <1-5% of pHPT cases). The TET proteins oxidize the epigenetic mark 5-methylcytosine to 5-hydroxymethylcytosine (5hmC) and inactivation by mutation or epigenetic deregulation of TET1 and TET2 play important roles in various cancers. Recently, we found that 5hmC was severely reduced in all of the analyzed PCs and with deranged expression of TET1 for the majority of PCs. Here, we have examined the expression of the TET2 protein in 15 5hmC-negative PCs from patients who had local invasion or metastases. Cell growth and cell migratory roles for TET2 as well as epigenetic deregulated expression were addressed. Immunohistochemistry revealed very low/undetectable expression of TET2 in all PCs and verified for two PCs that were available for western blotting analysis. Knockdown of TET2 in the parathyroid cell line sHPT-1 resulted in increased cell growth and increased cell migration. DNA sequencing of TET2 in PCs revealed two common variants and no obvious inactivating mutations. Quantitative bisulfite pyrosequencing analysis of the TET2 promoter CpG island revealed higher CpG methylation level in the PCs compared to that in normal tissues and treatment of a PC primary cell culture with the DNA methylation inhibitor 5-aza-2'-deoxycytidine caused increased expression of the methylated TET2 gene. Hence, the data suggest that deregulated expression of TET2 by DNA hypermethylation may contribute to the aberrantly low level of 5hmC in PCs and further that TET2 plays a cell growth and cell migratory regulatory role and may constitute a parathyroid tumor suppressor gene.

  • 120.
    Barazeghi, Elham
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Marabita, Francesco
    Karolinska Institutet, Karolinska University Hospital.
    Hellman, Per
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Stålberg, Peter
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Westin, Gunnar
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Reduced representation bisulfite sequencing of small intestinal neuroendocrine tumors identifies PTPRM as a novel candidate tumor suppressor geneIngår i: Artikel i tidskrift (Refereegranskat)
  • 121.
    Barazeghi, Elham
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Prabhawa, Surendra
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi. Uppsala Univ, Uppsala Univ Hosp, Rudbeck Lab, Uppsala, Sweden..
    Hellman, Per
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Norlén, Olov
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Stålberg, Peter
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Westin, Gunnar
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    A Role of TETs and 5-Hydroxymethylcytosine in SI-NETs2017Ingår i: Neuroendocrinology, ISSN 0028-3835, E-ISSN 1423-0194, Vol. 105, s. 18-18Artikel i tidskrift (Övrigt vetenskapligt)
  • 122.
    Barazeghi, Elham
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Prabhawa, Surendra
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Norlén, Olov
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Hellman, Per
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Stålberg, Peter
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Westin, Gunnar
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Decrease of 5-hydroxymethylcytosine and TET1 with nuclear exclusion of TET2 in small intestinal neuroendocrine tumorsIngår i: Artikel i tidskrift (Refereegranskat)
  • 123.
    Barazeghi, Elham
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Prabhawa, Surendra
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Norlén, Olov
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Hellman, Per
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Stålberg, Peter
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Westin, Gunnar
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Decrease of 5-hydroxymethylcytosine and TET1 with nuclear exclusion of TET2 in small intestinal neuroendocrine tumors.2018Ingår i: BMC Cancer, ISSN 1471-2407, E-ISSN 1471-2407, Vol. 18, nr 1, artikel-id 764Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    BACKGROUND: Small intestinal neuroendocrine tumors (SI-NETs) originate from enterochromaffin cells scattered in the intestinal mucosa of the ileum and jejunum. Loss of one copy of chromosome 18 is the most frequent observed aberration in primary tumors and metastases. The aim of this study was to investigate possible involvement of 5-hydroxymethylcytosine (5hmC), TET1 and TET2 in SI-NETs.

    METHODS: The analysis was conducted using 40 primary tumors and corresponding 47 metastases. The level of 5hmC, TET1 and TET2 was analyzed by DNA immune-dot blot assay and immunohistochemistry. Other methods included a colony forming assay, western blotting analysis, and quantitative bisulfite pyrosequencing analysis. The effect of the exportin-1 nuclear transport machinery inhibitors on cell proliferation and apoptosis was also explored using two SI-NET cell lines.

    RESULTS: Variable levels of 5hmC and a mosaic staining appearance with a mixture of positive and negative cell nuclei, regardless of cell number and staining strength, was observed overall both in primary tumors and metastases. Similarly aberrant staining pattern was observed for TET1 and TET2. In a number of tumors (15/32) mosaic pattern together with areas of negative staining was also observed for TET1. Abolished expression of TET1 in the tumors did not seem to involve hypermethylation of the TET1 promoter region. Overexpression of TET1 in a colony forming assay supported a function as cell growth regulator. In contrast to 5hmC and TET1, TET2 was also observed in the cytoplasm of all the analyzed SI-NETs regardless of nuclear localization. Treatment of CNDT2.5 and KRJ-I cells with the exportin-1 (XPO1/CRM1) inhibitor, leptomycin B, induced reduction in the cytoplasm and nuclear retention of TET2. Aberrant partitioning of TET2 from the nucleus to the cytoplasm seemed therefore to involve the exportin-1 nuclear transport machinery. Reduced cell proliferation and induction of apoptosis were observed after treatment of CNDT2.5 and KRJ-I cells with leptomycin B or KPT-330 (selinexor).

    CONCLUSIONS: SI-NETs are epigenetically dysregulated at the level of 5-hydroxymethylcytosine/ TET1/TET2. We suggest that KPT-330/selinexor or future developments should be considered and evaluated for single treatment of patients with SI-NET disease and also in combinations with somatostatin analogues, peptide receptor radiotherapy, or everolimus.

  • 124.
    Barbuil, Tiziano
    et al.
    Osped Giovanni 23, Div Hematol, Bergamo, Italy.
    Tefferi, Ayalew
    Mayo Clin, Dept Med, Div Hematol, Rochester, MN USA.
    Vannucchi, Alessandro M.
    Univ Florence, AOU Careggi, Ctr Res & Innovat Myeloproliferat Neoplasms, CRIMM, Florence, Italy.
    Passamonti, Francesco
    Univ Insubria, Osped Circolo, Dept Med & Surg, Div Hematol,ASST Sette Laghi, Varese, Italy.
    Silvers, Richard T.
    Weill Cornell Med, Div Hematol Oncol, New York, NY USA.
    Hoffman, Ronald
    Mt Sinai Sch Med, Dept Med, Tisch Canc Inst, New York, NY USA.
    Verstovsek, Srdan
    Univ Texas MD Anderson Canc Ctr, Dept Leukemia, Houston, TX 77030 USA.
    Mesa, Ruben
    UT Hlth San Antonio Canc Ctr, San Antonio, TX USA.
    Kiladjian, Jean-Jacques
    Univ Paris 07, Hop St Louis, AP HP, INSERM,Ctr Invest Clin CIC 1427, Paris, France.
    Hehlmann, Rudiger
    Heidelberg Univ, Univ Hosp Mannheim, Dept Hematol & Oncol, Mannheim, Germany.
    Reiter, Andreas
    Heidelberg Univ, Univ Hosp Mannheim, Dept Hematol & Oncol, Mannheim, Germany.
    Cervantes, Francisco
    Univ Barcelona, IDIBAPS, Hosp Clin, Barcelona, Spain.
    Harrison, Claire
    Guys & St Thomas NHS Fdn Trust, Dept Hematol, London, England.
    Mc Mullin, Mary Frances
    Queens Univ, Ctr Med Educ, Belfast, Antrim, North Ireland.
    Hasselbalch, Hans Carl
    Zealand Univ Hosp, Dept Hematol, Roskilde, Denmark.
    Koschmieder, Steffen
    Rhein Westfal TH Aachen, Fac Med, Dept Hematol Oncol Hemostaseol & Stem Cell Transp, Aachen, Germany.
    Marchetti, Monia
    Hosp Cardinal Massaia, Oncol SOC, Hematol Day Serv, Asti, Italy.
    Bacigalupo, Andrea
    Univ Cattolica Sacro Cuore, Fdn Policlin Univ Gemelli, Ist Ematol, Rome, Italy.
    Finazzil, Guido
    Osped Giovanni 23, Div Hematol, Bergamo, Italy.
    Kroeger, Nicolaus
    Univ Hosp Hamburg Eppendorf, Dept Stem Cell Transplantat, Hamburg, Germany.
    Griesshammer, Martin
    Univ Hannover, Acad Hosp, Johannes Wesling Med Ctr Minden, Dept Hematol & Oncol, Minden, Germany.
    Birgegård, Gunnar
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Hematologi.
    Barosi, Giovanni
    IRCCS Policlin S Matteo Fdn, Ctr Study Myelofibrosis, Pavia, Italy.
    Philadelphia chromosome-negative classical myeloproliferative neoplasms: revised management recommendations from European LeukemiaNet2018Ingår i: Leukemia, ISSN 0887-6924, E-ISSN 1476-5551, Vol. 32, nr 5, s. 1057-1069Artikel, forskningsöversikt (Refereegranskat)
    Abstract [en]

    This document updates the recommendations on the management of Philadelphia chromosome-negative myeloproliferative neoplasms (Ph-neg MPNs) published in 2011 by the European LeukemiaNet (ELN) consortium. Recommendations were produced by multiple-step formalized procedures of group discussion. A critical appraisal of evidence by using Grades of Recommendation, Assessment, Development and Evaluation (GRADE) methodology was performed in the areas where at least one randomized clinical trial was published. Seven randomized controlled trials provided the evidence base; earlier phase trials also informed recommendation development. Key differences from the 2011 diagnostic recommendations included: lower threshold values for hemoglobin and hematocrit and bone marrow examination for diagnosis of polycythemia vera (PV), according to the revised WHO criteria; the search for complementary clonal markers, such as ASXL1, EZH2, IDH1/IDH2, and SRSF2 for the diagnosis of myelofibrosis (MF) in patients who test negative for JAK2V617, CALR or MPL driver mutations. Regarding key differences of therapy recommendations, both recombinant interferon alpha and the JAK1/JAK2 inhibitor ruxolitinib are recommended as second-line therapies for PV patients who are intolerant or have inadequate response to hydroxyurea. Ruxolitinib is recommended as first-line approach for MF-associated splenomegaly in patients with intermediate-2 or high-risk disease; in case of intermediate-1 disease, ruxolitinib is recommended in highly symptomatic splenomegaly. Allogeneic stem cell transplantation is recommended for transplant-eligible MF patients with high or intermediate-2 risk score. Allogeneic stem cell transplantation is also recommended for transplant-eligible MF patients with intermediate-1 risk score who present with either refractory, transfusion-dependent anemia, blasts in peripheral blood > 2%, adverse cytogenetics, or high-risk mutations. In these situations, the transplant procedure should be performed in a controlled setting.

  • 125. Bard-Chapeau, Emilie A
    et al.
    Nguyen, Anh-Tuan
    Rust, Alistair G
    Sayadi, Ahmed
    Institute of Molecular and Cell Biology, Singapore, Singapore.
    Lee, Philip
    Chua, Belinda Q
    New, Lee-Sun
    de Jong, Johann
    Ward, Jerrold M
    Chin, Christopher K Y
    Chew, Valerie
    Toh, Han Chong
    Abastado, Jean-Pierre
    Benoukraf, Touati
    Soong, Richie
    Bard, Frederic A
    Dupuy, Adam J
    Johnson, Randy L
    Radda, George K
    Chan, Eric Chun Yong
    Wessels, Lodewyk F A
    Adams, David J
    Jenkins, Nancy A
    Copeland, Neal G
    Transposon mutagenesis identifies genes driving hepatocellular carcinoma in a chronic hepatitis B mouse model.2014Ingår i: Nature Genetics, ISSN 1061-4036, E-ISSN 1546-1718, Vol. 46, nr 1Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The most common risk factor for developing hepatocellular carcinoma (HCC) is chronic infection with hepatitis B virus (HBV). To better understand the evolutionary forces driving HCC, we performed a near-saturating transposon mutagenesis screen in a mouse HBV model of HCC. This screen identified 21 candidate early stage drivers and a very large number (2,860) of candidate later stage drivers that were enriched for genes that are mutated, deregulated or functioning in signaling pathways important for human HCC, with a striking 1,199 genes being linked to cellular metabolic processes. Our study provides a comprehensive overview of the genetic landscape of HCC.

  • 126. Bard-Chapeau, Emilie A
    et al.
    Szumska, Dorota
    Jacob, Bindya
    Chua, Belinda Q L
    Chatterjee, Gouri C
    Zhang, Yi
    Ward, Jerrold M
    Urun, Fatma
    Kinameri, Emi
    Vincent, Stéphane D
    Ahmed, Sayadi
    Institute of Molecular and Cell Biology, Singapore, Singapore.
    Bhattacharya, Shoumo
    Osato, Motomi
    Perkins, Archibald S
    Moore, Adrian W
    Jenkins, Nancy A
    Copeland, Neal G
    Mice carrying a hypomorphic Evi1 allele are embryonic viable but exhibit severe congenital heart defects2014Ingår i: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 9, nr 2Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The ecotropic viral integration site 1 (Evi1) oncogenic transcription factor is one of a number of alternative transcripts encoded by the Mds1 and Evi1 complex locus (Mecom). Overexpression of Evi1 has been observed in a number of myeloid disorders and is associated with poor patient survival. It is also amplified and/or overexpressed in many epithelial cancers including nasopharyngeal carcinoma, ovarian carcinoma, ependymomas, and lung and colorectal cancers. Two murine knockout models have also demonstrated Evi1's critical role in the maintenance of hematopoietic stem cell renewal with its absence resulting in the death of mutant embryos due to hematopoietic failure. Here we characterize a novel mouse model (designated Evi1(fl3)) in which Evi1 exon 3, which carries the ATG start, is flanked by loxP sites. Unexpectedly, we found that germline deletion of exon3 produces a hypomorphic allele due to the use of an alternative ATG start site located in exon 4, resulting in a minor Evi1 N-terminal truncation and a block in expression of the Mds1-Evi1 fusion transcript. Evi1(δex3/δex3) mutant embryos showed only a mild non-lethal hematopoietic phenotype and bone marrow failure was only observed in adult Vav-iCre/+, Evi1(fl3/fl3) mice in which exon 3 was specifically deleted in the hematopoietic system. Evi1(δex3/δex3) knockout pups are born in normal numbers but die during the perinatal period from congenital heart defects. Database searches identified 143 genes with similar mutant heart phenotypes as those observed in Evi1(δex3/δex3) mutant pups. Interestingly, 42 of these congenital heart defect genes contain known Evi1-binding sites, and expression of 18 of these genes are also effected by Evi1 siRNA knockdown. These results show a potential functional involvement of Evi1 target genes in heart development and indicate that Evi1 is part of a transcriptional program that regulates cardiac development in addition to the development of blood.

  • 127.
    Bartoschek, Michael
    et al.
    Lund Univ, Dept Lab Med, Div Translat Canc Res, BioCARE, S-22381 Lund, Sweden.
    Oskolkov, Nikolay
    Lund Univ, Sci Life Lab, Natl Bioinformat Infrastruct Sweden, Dept Biol, Solvegatan 35, S-22362 Lund, Sweden.
    Bocci, Matteo
    Lund Univ, Dept Lab Med, Div Translat Canc Res, BioCARE, S-22381 Lund, Sweden.
    Lovrot, John
    Karolinska Inst, Dept Oncol & Pathol, Karolinska Univ Sjukhuset Z1 01, S-17176 Stockholm, Sweden.
    Larsson, Christer
    Lund Univ, Dept Lab Med, Div Translat Canc Res, BioCARE, S-22381 Lund, Sweden.
    Sommarin, Mikael
    Lund Univ, Lund Stem Cell Ctr, Div Mol Hematol, BMC B12, S-22184 Lund, Sweden.
    Madsen, Chris D.
    Lund Univ, Dept Lab Med, Div Translat Canc Res, BioCARE, S-22381 Lund, Sweden.
    Lindgren, David
    Lund Univ, Dept Lab Med, Div Translat Canc Res, BioCARE, S-22381 Lund, Sweden.
    Pekar, Gyula
    Lund Univ, Dept Clin Sci, Div Oncol & Pathol, Skane Univ Hosp, S-22185 Lund, Sweden.
    Karlsson, Goran
    Lund Univ, Lund Stem Cell Ctr, Div Mol Hematol, BMC B12, S-22184 Lund, Sweden.
    Ringner, Markus
    Lund Univ, Sci Life Lab, Natl Bioinformat Infrastruct Sweden, Dept Biol, Solvegatan 35, S-22362 Lund, Sweden.
    Bergh, Jonas
    Karolinska Inst, Dept Oncol & Pathol, Karolinska Univ Sjukhuset Z1 01, S-17176 Stockholm, Sweden.
    Björklund, Åsa
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Biologiska sektionen, Institutionen för cell- och molekylärbiologi, Molekylär evolution. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Pietras, Kristian
    Lund Univ, Dept Lab Med, Div Translat Canc Res, BioCARE, S-22381 Lund, Sweden.
    Spatially and functionally distinct subclasses of breast cancer-associated fibroblasts revealed by single cell RNA sequencing2018Ingår i: Nature Communications, ISSN 2041-1723, E-ISSN 2041-1723, Vol. 9, artikel-id 5150Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Cancer-associated fibroblasts (CAFs) are a major constituent of the tumor microenvironment, although their origin and roles in shaping disease initiation, progression and treatment response remain unclear due to significant heterogeneity. Here, following a negative selection strategy combined with single-cell RNA sequencing of 768 transcriptomes of mesenchymal cells from a genetically engineered mouse model of breast cancer, we define three distinct subpopulations of CAFs. Validation at the transcriptional and protein level in several experimental models of cancer and human tumors reveal spatial separation of the CAF subclasses attributable to different origins, including the peri-vascular niche, the mammary fat pad and the transformed epithelium. Gene profiles for each CAF subtype correlate to distinctive functional programs and hold independent prognostic capability in clinical cohorts by association to metastatic disease. In conclusion, the improved resolution of the widely defined CAF population opens the possibility for biomarker-driven development of drugs for precision targeting of CAFs.

  • 128.
    Bartoszek, Krzysztof
    et al.
    Gdansk University of Technology.
    Izydorek, Bartosz
    Gdansk University of Technology.
    Ratajczak, Tadeusz
    Gdansk University of Technology.
    Skokowski, Jaroslaw
    Medical University of Gdansk.
    Szwaracki, Karol
    Gdansk University of Technology.
    Tomczak, Wiktor
    Gdansk University of Technology.
    Neural Network Breast Cancer Relapse Time Prognosis2006Ingår i: ASO Summer School 2006 Abstract Book, 2006, s. 8-10Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    This paper is a result of a project at the Faculty of Electronics, Telecommunication and Computer Science (Technical University of Gdansk). The aim of the project was to create a neural network to predict the relapsetime of breast cancer. The neural network was to be trained on data collected over the past 20 years by dr. Jarosław Skokowski. The data includes 439 patient records described by about 40 parameters. For our neuralnetwork we only considered 6 medically most significant parameters the number of nodes showing evidence of cancer, size of tumour (in mm.), age, bloom score, estrogen receptors and proestrogen receptors and the relapsetime as the outcome. Our neural network was created in the MATLAB environment.

  • 129.
    Bartoszek, Krzysztof
    et al.
    Mathematical Sciences, Chalmers University of Technology and the University of Gothenburg.
    Krzeminski, Michal
    Gdansk University of Technology.
    Skokowski, Jaroslaw
    Medical University of Gdansk.
    Survival time prognosis under a Markov model of cancer development2010Ingår i: Proceedings of the XVI National Conference on Applications of Mathematics in Biology and Medicine, 2010, s. 6-11Konferensbidrag (Refereegranskat)
    Abstract [en]

    In this study we look at a breast cancer data set of women from the Pomerania region collected in the year 1987- 1992 in the Medical University of Gdansk.We analyze the clinical risk factors in conjunction with a Markov model of cancer development. We evaluate Artificial Neural Network (ANN) survival time prediction (which was done on this data set in a previous study) via a simulation study.

  • 130.
    Baskaran, Sathish
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi.
    Almstedt, Elin
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi.
    Hansson, Caroline
    Sahlgrenska Cancer Center, Institute of Medicine, Gothenburg, Sweden.
    Kalushkova, Antonia
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
    Atienza Párraga, Alba
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
    Spyrou, Argyris
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi.
    Forsberg Nilsson, Karin
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi.
    Jernberg Wiklund, Helena
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
    Elfineh, Lioudmila
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi.
    Weishaupt, Holger
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi.
    Kundu, Soumi
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi.
    Krona, Cecilia
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi.
    Nelander, Sven
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi.
    ZBTB16 orchestrates growth and invasion in glioblastomaManuskript (preprint) (Övrigt vetenskapligt)
  • 131.
    Baskaran, Sathishkumar
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi. Department of IGP, Uppsala University.
    New Molecular Approaches to Glioblastoma Therapy2017Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [en]

    Glioblastoma (GBM) is the most common high-grade brain tumor diagnosed in patients who are more than 50 years of age. The standard of care treatment is surgery, followed by radiotherapy and chemotherapy. The median life expectancy of patients is only between 12 to 15 months after receiving current treatment regimes. Hence, identification of new therapeutic compounds and gene targets are highly warranted. This thesis describes four interlinked studies to attain this goal. In study 1, we explored drug combination effects in a material of 41 patient-derived GBM cell (GC) cultures. Synergies between three compounds, pterostilbene, gefitinib, and sertraline, resulted in effective killing of GC and can be predicted by biomarkers. In study 2, we performed a large-scale screening of FDA approved compounds (n=1544) in a larger panel of GCs (n=106). By combining the large-scale drug response data with GCs genomics data, we built a novel computational model to predict the sensitivity of each compound for a given GC. A notable finding was that GCs respond very differently to proteasome inhibitors in both in-vitro and in-vivo. In study 3, we explored new gene targets by RNAi (n=1112) in a panel of GC cells. We found that loss of transcription factor ZBTB16/PLZF inhibits GC cell viability, proliferation, migration, and invasion. These effects were due to downregulation of c-MYC and Cyclin B1 after the treatment. In study 4, we tested the genomic stability of three GCs upon multiple passaging. Using molecular and mathematical analyses, we showed that the GCs undergo both systematic adaptations and sequential clonal takeovers. Such changes tend to affect a broad spectrum of pathways. Therefore, a systematic analysis of cell culture stability will be essential to make use of primary cells for translational oncology.

    Taken together, these studies deepen our knowledge of the weak points of GBM and provide several targets and biomarkers for further investigation. The work in this thesis can potentially facilitate the development of targeted therapies and result in more accurate tools for patient diagnostics and stratification. 

    Delarbeten
    1. Case-specific potentiation of glioblastoma drugs by pterostilbene
    Öppna denna publikation i ny flik eller fönster >>Case-specific potentiation of glioblastoma drugs by pterostilbene
    Visa övriga...
    2016 (Engelska)Ingår i: OncoTarget, ISSN 1949-2553, E-ISSN 1949-2553, Vol. 7, nr 45, s. 73200-73215Artikel i tidskrift (Refereegranskat) Published
    Nationell ämneskategori
    Cancer och onkologi Medicinsk genetik
    Identifikatorer
    urn:nbn:se:uu:diva-309806 (URN)10.18632/oncotarget.12298 (DOI)000387452100060 ()
    Forskningsfinansiär
    VetenskapsrådetCancerfondenBarncancerfonden
    Tillgänglig från: 2016-09-28 Skapad: 2016-12-07 Senast uppdaterad: 2019-01-22Bibliografiskt granskad
    2. Targeting tumor heterogeneity: multi-omic modeling of glioblastoma drug response using an open-access library of patient-derived cells
    Öppna denna publikation i ny flik eller fönster >>Targeting tumor heterogeneity: multi-omic modeling of glioblastoma drug response using an open-access library of patient-derived cells
    Visa övriga...
    (Engelska)Manuskript (preprint) (Övrigt vetenskapligt)
    Nyckelord
    GBM, Proteasome inhibitors, Precision medicine, Bortezomib, drug predictions
    Nationell ämneskategori
    Cancer och onkologi Cell- och molekylärbiologi Medicinsk bioteknologi (med inriktning mot cellbiologi (inklusive stamcellsbiologi), molekylärbiologi, mikrobiologi, biokemi eller biofarmaci)
    Forskningsämne
    Biologi med inriktning mot molekylärbiologi; Onkologi; Bioinformatik; Medicinsk vetenskap
    Identifikatorer
    urn:nbn:se:uu:diva-329756 (URN)
    Tillgänglig från: 2017-09-20 Skapad: 2017-09-20 Senast uppdaterad: 2018-01-13
    3. Loss of transcription factor ZBTB16 induces cell death in patient-derived GBM cell lines
    Öppna denna publikation i ny flik eller fönster >>Loss of transcription factor ZBTB16 induces cell death in patient-derived GBM cell lines
    Visa övriga...
    (Engelska)Manuskript (preprint) (Övrigt vetenskapligt)
    Nyckelord
    PLZF, ZBTB16, GBM, Glioblastoma
    Nationell ämneskategori
    Cancer och onkologi Cell- och molekylärbiologi
    Forskningsämne
    Biologi med inriktning mot molekylär cellbiologi; Onkologi
    Identifikatorer
    urn:nbn:se:uu:diva-329752 (URN)
    Tillgänglig från: 2017-09-20 Skapad: 2017-09-20 Senast uppdaterad: 2018-01-13
    4. Primary glioblastoma cells for precision medicine: a quantitative portrait of genomic (in)stability during the first 30 passages: glioblastoma cells for precision medicine
    Öppna denna publikation i ny flik eller fönster >>Primary glioblastoma cells for precision medicine: a quantitative portrait of genomic (in)stability during the first 30 passages: glioblastoma cells for precision medicine
    Visa övriga...
    (Engelska)Manuskript (preprint) (Övrigt vetenskapligt)
    Nyckelord
    Patient derived GBM cell cultures, Systems biology, Subclones, Glioma stem cell cultures, GBM subtype
    Nationell ämneskategori
    Cancer och onkologi
    Forskningsämne
    Onkologi; Biologi; Medicinsk vetenskap
    Identifikatorer
    urn:nbn:se:uu:diva-329742 (URN)
    Tillgänglig från: 2017-09-20 Skapad: 2017-09-20 Senast uppdaterad: 2017-10-22
  • 132.
    Baskaran, Sathishkumar
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi. Department of IGP, Uppsala University.
    Johansson, Patrik
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi.
    Hansson, Caroline
    Sahlgrenska Cancer Center, University of Gothenburg.
    Spyrou, Argyris
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi.
    Kalushkova, Antonia
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi.
    Ramachandran, Mohanraj
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi.
    Atienza Párraga, Alba
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi.
    Nordling, Torbjörn
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi.
    Elfineh, Lioudmila
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi.
    Martens, Ulf
    Cell screening facility, Science for Life Laboratory Stockholm.
    Häggblad, Maria
    Cell screening facility, Science for Life Laboratory Stockholm.
    Kundu, Soumi
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi.
    Forsberg Nilsson, Karin
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi.
    Lundgren, Bo
    Cell screening facility, Science for Life Laboratory Stockholm.
    Krona, Cecilia
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi.
    Nelander, Sven
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi.
    Loss of transcription factor ZBTB16 induces cell death in patient-derived GBM cell linesManuskript (preprint) (Övrigt vetenskapligt)
  • 133.
    Baskaran, Sathishkumar
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi. Department of IGP, Uppsala University.
    Mayrhofer, Markus
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper.
    Kultima, Hanna
    Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Elfineh, Lioudmila
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi.
    Cavelier, Lucia
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi.
    Isaksson, Anders
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper.
    Nelander, Sven
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Neuroonkologi.
    Primary glioblastoma cells for precision medicine: a quantitative portrait of genomic (in)stability during the first 30 passages: glioblastoma cells for precision medicineManuskript (preprint) (Övrigt vetenskapligt)
  • 134.
    Basu, Samar
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för folkhälso- och vårdvetenskap. Univ Auvergne, Univ Clermont Ferrand 2, UMR 1019, CRNH Auvergne,Unite Nutr Humaine, F-63000 Clermont Ferrand, France..
    Combe, Kristell
    Univ Auvergne, Univ Clermont Ferrand 2, UMR 1019, CRNH Auvergne,Unite Nutr Humaine, F-63000 Clermont Ferrand, France..
    Kwiatkowski, Fabrice
    Ctr Jean Perrin, F-63000 Clermont Ferrand, France..
    Caldefie-Chezet, Florence
    Univ Auvergne, Univ Clermont Ferrand 2, UMR 1019, CRNH Auvergne,Unite Nutr Humaine, F-63000 Clermont Ferrand, France..
    Penault-Llorca, Frederique
    Ctr Jean Perrin, F-63000 Clermont Ferrand, France..
    Bignon, Yves-Jean
    Ctr Jean Perrin, F-63000 Clermont Ferrand, France..
    Vasson, Marie-Paule
    Univ Auvergne, Univ Clermont Ferrand 2, UMR 1019, CRNH Auvergne,Unite Nutr Humaine, F-63000 Clermont Ferrand, France.;Ctr Jean Perrin, F-63000 Clermont Ferrand, France.;CHU Clermont Ferrand, Unite Explorat Nutr, F-63003 Clermont Ferrand, France..
    Cellular Expression of Cyclooxygenase, Aromatase, Adipokines, Inflammation and Cell Proliferation Markers in Breast Cancer Specimen2015Ingår i: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 10, nr 10, artikel-id e0138443Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Current evidences suggest that expression of Ki67, cyclooxygenase (COX), aromatase, adipokines, prostaglandins, free radicals, beta-catenin and alpha-SMA might be involved in breast cancer pathogenesis. The main objective of this study was to compare expression/localization of these potential compounds in breast cancer tissues with tissues collected adjacent to the tumor using immunohistochemistry and correlated with clinical pathology. The breast cancer specimens were collected from 30 women aged between 49 and 89 years who underwent breast surgery following cancer diagnosis. Expression levels of molecules by different stainings were graded as a score on a scale based upon staining intensity and proportion of positive cells/area or individually. AdipoR1, adiponectin, Ob-R, leptin, COX-1, COX-2, aromatase, PGF(2a), F-2-isoprostanes and alpha-SMA were localised on higher levels in the breast tissues adjacent to the tumor compared to tumor specimens when considering either score or staining area whereas COX-2 and AdipoR2 were found to be higher considering staining intensity and Ki67 on score level in the tumor tissue. There was no significant difference observed on beta-catenin either on score nor on staining area and intensity between tissues adjacent to the tumor and tumor tissues. A positive correlation was found between COX-1 and COX-2 in the tumor tissues. In conclusion, these suggest that Ki67, COXs, aromatase, prostaglandin, free radicals, adipokines, beta-catenin and alpha-SMA are involved in breast cancer. These further focus the need of examination of tissues adjacent to tumor, tumor itself and compare them with normal or benign breast tissues for a better understanding of breast cancer pathology and future evaluation of therapeutic benefit.

  • 135.
    Basu, Samar
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för folkhälso- och vårdvetenskap, Oxidativ stress och inflammation.
    Harris, Holly
    Larsson, Anders
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Biokemisk struktur och funktion.
    Vasson, Marie-Paule
    Wolk, Alicja
    Is There any Role for Serum Cathepsin S, CRP levels on Prognostic Information in Breast Cancer?: The Swedish Mammography Cohort2015Ingår i: Antioxidants and Redox Signaling, ISSN 1523-0864, E-ISSN 1557-7716, Vol. 23, nr 16, s. 1298-1302Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Breast cancer is the most common cancer among women, and both low-grade inflammation and cathepsins might have important roles in breast cancer. We questioned whether prediagnostic circulating levels of C-reactive protein (CRP), cathepsin B and cathepsin S were associated with breast cancer risk. Sixty-nine incident breast cancer cases diagnosed after blood collection and 719 controls from the Swedish Mammography Cohort were analysed for systemic CRP, cathepsin B and cathepsin S. Cathepsin S and inflammation (hsCRP) adjusted cathepsin S were inversely associated with breast cancer risk (cathepsin S: OR for top vs. bottom tertile = 0.46; 95% CI = 0.23-0.92; Ptrend = 0.02; hsCRP adjusted cathepsin S: OR of 0.44; 95% CI = 0.22-0.87; Ptrend = 0.02). hsCRP was significantly associated with increased breast cancer risk (OR for top vs. bottom tertile= 2.01; 95% CI = 1.02-3.95; Ptrend = 0.04). No significant association was observed between cathepsin B and breast cancer risk (OR for top vs. bottom tertile= 0.67; 95% CI = 0.32-1.40; Ptrend = 0.30). These observations lead to hypothesis that levels of cathepsin S and hsCRP observed in women who later developed breast cancer may provide prognostic information regarding tumor development and need to be evaluated in prospective studies.

  • 136.
    Batool, Tahira
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk biokemi och mikrobiologi.
    Heparan sulfate dependent cell signaling and associated pathophysiology: Implications in tumorigenesis and embryogenesis2018Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [en]

    Heparan sulfate proteoglycans (HSPGs) consist of a protein core to which several linear, negatively charged heparan sulfate (HS) chains are covalently attached. HSPGs are expressed on the cell surface and in the extra-cellular matrix (ECM) where they have diverse biological functions, for example co-receptor functions. The diverse functions of HS are linked to structural variability of the polysaccharide. In this thesis, I investigated HS structure-function relationship by using different cell and animal models of one HS-biosynthetic enzyme, glucuronyl C5-epimerase (Hsepi) and one enzyme responsible for post synthetic modification, heparanase.

    Deletion of Hsepi in mice resulted in neonatal lethality, with multiple organ defects, indicating the importance of HS in embryogenesis. Up-regulated expression of heparanase is found in most human tumor tissues, correlating with increased metastatic potential and decreased survival of cancer patients.

    In the first project, I focused on the effects of HS on cancer associated cell signaling and found that heparanase overexpression attenuated TGF-β1 stimulated Smad phosphorylation in tumor cells because of increased sulfation degree and turnover rate of HS.

    Heparanase role in cancer progression has led to clinical trials where inhibition of heparanase activity is currently being evaluated as a potential cancer treatment. Heparin, a HS-related polysaccharide, is being used to inhibit heparanase activity. In my second project, we studied the effect of low molecular weight heparin (LMWH) on cisplatin resistance of ovarian cancer cells (A2780cis). LMWH treatment of A2780cis cells reduced Wnt-activity in these cells and consequently reduce the drug resistance.

    In paper III, we continued exploring the HS/heparanase role in cancer by using heparanase overexpressing mice (Hpa-tg). We found Lewis Lung Carcinoma (LLC2) cells showed faster growth, bigger tumors and more metastasis in the Hpa-tg mice as compared to wild-type (WT) mice, because of suppressed antitumor immunity in the Hpa-tg mice.

    In paper IV and V, we studied the structure-function relationship of HS by using Hsepi-/- mice model. Hsepi-/- results in HS-chains lacking IdoA, which makes the chain rigid and consequently affects its co-receptor function. Skeletal malformation in Hsepi-/- mice, led us in paper IV to investigate bone morphogenic protein (BMP), an important signal molecule during embryogenesis and known to interact with HS. We found upregulation of a number of BMPs and expression of P-smad1/5/8, but reduced expression of inhibitory Smads and Gremlin1 in the Hsepi-/- MEF cells. The study indicated that the developmental defects in Hsepi mice could be contributed by a higher BMP signaling. In paper V we investigated the lung of the Hsepi-/- mice. The distal lung of 17.5 days old embryos remained populated by epithelial tubules, because of impaired differentiation of type I cells of the lungs. Potential mechanisms behind the failure of type I cell formation was identified to be reduced vascularization and a sustained signaling of Smad pathways.

    Delarbeten
    1. Overexpression of heparanase attenuated TGF-beta-stimulated signaling in tumor cells
    Öppna denna publikation i ny flik eller fönster >>Overexpression of heparanase attenuated TGF-beta-stimulated signaling in tumor cells
    Visa övriga...
    2017 (Engelska)Ingår i: FEBS Open Bio, E-ISSN 2211-5463, Vol. 7, nr 3, s. 405-413Artikel i tidskrift (Refereegranskat) Published
    Abstract [en]

    Heparan sulfate (HS) mediates the activity of various growth factors including TGF-beta. Heparanase is an endo-glucuronidase that specifically cleaves and modifies HS structure. In this study, we examined the effect of heparanase expression on TGF-beta 1-dependent signaling activities. We found that overexpression of heparanase in human tumor cells (i.e., Fadu pharyngeal carcinoma, MCF7 breast carcinoma) attenuated TGF-beta 1-stimulated Smad phosphorylation and led to a slower cell proliferation. TGF-beta 1-stimulated Akt and Erk phosphorylation was also affected in the heparanase overexpression cells. This effect involved the enzymatic activity of heparanase, as overexpression of mutant inactive heparanase did not affect TGF-beta 1 signaling activity. Analysis of HS isolated from Fadu cells revealed an increase in sulfation of the HS that had a rapid turnover in cells overexpressing heparanase. It appears that the structural alterations of HS affect the ability of TGF-beta 1 to signal via its receptors and elicit a growth response. Given that heparanase expression promotes tumor growth in most cancers, this finding highlights a crosstalk between heparanase, HS, and TGF-beta 1 function in tumorigenesis.

    Nyckelord
    cancer cell, heparan sulfate, heparanase signaling, TGF-beta
    Nationell ämneskategori
    Biokemi och molekylärbiologi Medicinsk bioteknologi (med inriktning mot cellbiologi (inklusive stamcellsbiologi), molekylärbiologi, mikrobiologi, biokemi eller biofarmaci) Cancer och onkologi
    Identifikatorer
    urn:nbn:se:uu:diva-322852 (URN)10.1002/2211-5463.12190 (DOI)000400298500011 ()28286736 (PubMedID)
    Forskningsfinansiär
    Vetenskapsrådet, 2015-02595Vetenskapsrådet, K2013-66X-14936-10-5Cancerfonden, 150815Cancerfonden, 150834
    Tillgänglig från: 2017-06-07 Skapad: 2017-06-07 Senast uppdaterad: 2018-10-15Bibliografiskt granskad
    2. Heparin antagonizes cisplatin resistance of A2780 ovarian cancer cells by affecting the Wnt signaling pathway
    Öppna denna publikation i ny flik eller fönster >>Heparin antagonizes cisplatin resistance of A2780 ovarian cancer cells by affecting the Wnt signaling pathway
    Visa övriga...
    2017 (Engelska)Ingår i: OncoTarget, ISSN 1949-2553, E-ISSN 1949-2553, Vol. 8, nr 40, s. 67553-67566Artikel i tidskrift (Refereegranskat) Published
    Abstract [en]

    Low molecular weight heparin (LMWH), the guideline based drug for prophylaxis and treatment of cancer-associated thrombosis, was recently shown to sensitize cisplatin resistant A2780cis human ovarian cancer cells for cisplatin cytotoxicity upon 24 h pretreatment with 50 mu g x mL(-1) of the LMWH tinzaparin in vitro, equivalent to a therapeutic dosage. Thereby, LMWH induced sensitization by transcriptional reprogramming of A2780cis cells via not yet elucidated mechanisms that depend on cellular proteoglycans. Here we aim to illuminate the underlying molecular mechanisms of LMWH in sensitizing A2780cis cells for cisplatin. Using TCF/LEF luciferase promotor assay (Top/Flash) we show that resistant A2780cis cells possess a threefold higher Wnt signaling activity compared to A2780 cells. Furthermore, Wnt pathway blockade by FH535 leads to higher cisplatin sensitivity of A2780cis cells. Glypican-3 (GPC3) is upregulated in A2780cis cells in response to LMWH treatment, probably as counter-regulation to sustain the high Wnt activity against LMWH. Hence, LMWH reduces the cisplatin-induced rise in Wnt activity and TCF-4 expression in A2780cis cells, but keeps sensitive A2780 cells unaffected. Consequently, Wnt signaling pathway appears as primary target of LMWH in sensitizing A2780cis cells for cisplatin toxicity. Considering the outstanding role of LMWH in clinical oncology, this finding appears as promising therapeutic option to hamper chemoresistance.

    Ort, förlag, år, upplaga, sidor
    IMPACT JOURNALS LLC, 2017
    Nyckelord
    tinzaparin, cancer, chemoresistance, Wnt, cisplatin
    Nationell ämneskategori
    Cancer och onkologi
    Identifikatorer
    urn:nbn:se:uu:diva-336049 (URN)10.18632/oncotarget.18738 (DOI)000410790500061 ()28978053 (PubMedID)
    Tillgänglig från: 2017-12-12 Skapad: 2017-12-12 Senast uppdaterad: 2018-10-15Bibliografiskt granskad
    3. Heparanase expression soils the microenvironment for tumor growth by enhancing Notch signaling and suppressing antitumor immunity.: Heparanase effects on immune response in tumor microenvironment.
    Öppna denna publikation i ny flik eller fönster >>Heparanase expression soils the microenvironment for tumor growth by enhancing Notch signaling and suppressing antitumor immunity.: Heparanase effects on immune response in tumor microenvironment.
    Visa övriga...
    (Engelska)Ingår i: Artikel i tidskrift (Övrigt vetenskapligt) Submitted
    Nationell ämneskategori
    Cancer och onkologi
    Identifikatorer
    urn:nbn:se:uu:diva-363257 (URN)
    Tillgänglig från: 2018-10-15 Skapad: 2018-10-15 Senast uppdaterad: 2018-10-15
    4. Upregulated BMP-Smad signaling activity in the glucuronyl C5-epimerase knock out MEF cells
    Öppna denna publikation i ny flik eller fönster >>Upregulated BMP-Smad signaling activity in the glucuronyl C5-epimerase knock out MEF cells
    Visa övriga...
    2019 (Engelska)Ingår i: Cellular Signalling, ISSN 0898-6568, E-ISSN 1873-3913, Vol. 54, s. 122-129Artikel i tidskrift (Refereegranskat) Published
    Abstract [en]

    Glucuronyl C5-epimerase (Hsepi) catalyzes the conversion of glucuronic acid to iduronic acid in the process of heparan sulfate biosynthesis. Targeted interruption of the gene, Glce,in mice resulted in neonatal lethality with varied defects in organ development. To understand the molecular mechanisms of the phenotypes, we used mouse embryonic fibroblasts (MEF) as a model to examine selected signaling pathways. Our earlier studies found reduced activities of FGF-2, GDNF, but increased activity of sonic hedgehog in the mutant cells. In this study, we focused on the bone morphogenetic protein (BMP) signaling pathway. Western blotting detected substantially elevated endogenous Smad1/5/8 phosphorylation in the Hsepi mutant (KO) MEF cells, which is reverted by re-expression of the enzyme in the KO cells. The mutant cells displayed an enhanced proliferation and elevated alkaline phosphatase activity, marking higher differentiation, when cultured in osteogenic medium. The high level of Smad1/5/8 phosphorylation was also found in primary calvarial cells isolated from the KO mice. Analysis of the genes involved in the BMP signaling pathway revealed upregulation of a number of BMP ligands, but reduced expression of several Smads and BMP antagonist (Grem1) in the KO MEF cells. The results suggest that Hsepi expression modulates BMP signaling activity, which, at least partially, is associated with defected molecular structure of heparan sulfate expressed in the cells.   

    Ort, förlag, år, upplaga, sidor
    Elsevier, 2019
    Nyckelord
    BMP signaling, Heparan sulfate, MEF cells, Smad, Glucuronyl C5-epimerase, Bone Morphogenetic Protein
    Nationell ämneskategori
    Cell- och molekylärbiologi Medicinsk bioteknologi (med inriktning mot cellbiologi (inklusive stamcellsbiologi), molekylärbiologi, mikrobiologi, biokemi eller biofarmaci)
    Identifikatorer
    urn:nbn:se:uu:diva-363254 (URN)10.1016/j.cellsig.2018.11.010 (DOI)000456752900013 ()30458230 (PubMedID)
    Forskningsfinansiär
    Cancerfonden, CAN2015/496Vetenskapsrådet, 2015-02595Science for Life Laboratory - a national resource center for high-throughput molecular bioscience
    Tillgänglig från: 2018-10-15 Skapad: 2018-10-15 Senast uppdaterad: 2019-02-12Bibliografiskt granskad
    5. Glucuronyl C5-epimerase is crucial for epithelial cell maturation during embryonic lung development: Glucuronyl C5-epimerase in lung development
    Öppna denna publikation i ny flik eller fönster >>Glucuronyl C5-epimerase is crucial for epithelial cell maturation during embryonic lung development: Glucuronyl C5-epimerase in lung development
    (Engelska)Ingår i: Artikel i tidskrift (Övrigt vetenskapligt) Submitted
    Nationell ämneskategori
    Cell- och molekylärbiologi
    Identifikatorer
    urn:nbn:se:uu:diva-363255 (URN)
    Tillgänglig från: 2018-10-15 Skapad: 2018-10-15 Senast uppdaterad: 2018-10-15
  • 137.
    Batool, Tahira
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk biokemi och mikrobiologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Fang, Jianping
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk biokemi och mikrobiologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab. GlycoNovo Technol Co Ltd, Shanghai, Peoples R China..
    Barash, Uri
    Technion, Fac Med, Canc & Vasc Biol Res Ctr Rappaport, Haifa, Israel..
    Moustakas, Aristidis
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk biokemi och mikrobiologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Vlodavsky, Israel
    Technion, Fac Med, Canc & Vasc Biol Res Ctr Rappaport, Haifa, Israel..
    Li, Jin-Ping
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk biokemi och mikrobiologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Overexpression of heparanase attenuated TGF-beta-stimulated signaling in tumor cells2017Ingår i: FEBS Open Bio, E-ISSN 2211-5463, Vol. 7, nr 3, s. 405-413Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Heparan sulfate (HS) mediates the activity of various growth factors including TGF-beta. Heparanase is an endo-glucuronidase that specifically cleaves and modifies HS structure. In this study, we examined the effect of heparanase expression on TGF-beta 1-dependent signaling activities. We found that overexpression of heparanase in human tumor cells (i.e., Fadu pharyngeal carcinoma, MCF7 breast carcinoma) attenuated TGF-beta 1-stimulated Smad phosphorylation and led to a slower cell proliferation. TGF-beta 1-stimulated Akt and Erk phosphorylation was also affected in the heparanase overexpression cells. This effect involved the enzymatic activity of heparanase, as overexpression of mutant inactive heparanase did not affect TGF-beta 1 signaling activity. Analysis of HS isolated from Fadu cells revealed an increase in sulfation of the HS that had a rapid turnover in cells overexpressing heparanase. It appears that the structural alterations of HS affect the ability of TGF-beta 1 to signal via its receptors and elicit a growth response. Given that heparanase expression promotes tumor growth in most cancers, this finding highlights a crosstalk between heparanase, HS, and TGF-beta 1 function in tumorigenesis.

  • 138.
    Baudin, Eric
    et al.
    Inst Gustave Roussy, Oncol Endocrinienne & Med Nucl, Villejuif, France.
    Hayes, Aimee R.
    Royal Free Hosp, Neuroendocrine Tumour Unit, London, England.
    Scoazec, Jean-Yves
    Univ Lyon, Dept Pathol, Lyon, France.
    Filosso, Pier Luigi
    Univ Torino, Dept Thorac Surg, Turin, Italy.
    Lim, Eric
    Royal Brompton Hosp, Dept Thorac Surg, London, England.
    Kaltsas, Gregory
    Natl Univ Athens, Div Endocrinol, Dept Pathophysiol, Athens, Greece.
    Frilling, Andrea
    Imperial Coll London, Dept Surg & Canc, London, England.
    Chen, Jie
    Sun Yat Sen Univ, Affiliated Hosp 1, Dept Gastroenterol, Guangzhou, Guangdong, Peoples R China.
    Kos-Kudła, Beata
    Slaska Akad Med, Klin Endokrynol, Zabrze, Poland.
    Gorbunova, Vera
    Russian Acad Med Sci, FSBI NN Blokhin Russian Canc Res Ctr, Moscow, Russia.
    Wiedenmann, Bertram
    Charite Univ Med Berlin, Campus Charite Mitte, Dept Gastroenterol & Hepatol, Berlin, Germany; Charite Univ Med Berlin, Campus Virchow Klinikum, Berlin, Germany.
    Nieveen van Dijkum, Els
    Acad Med Ctr, Dept Surg, Amsterdam, Netherlands.
    Ćwikła, Jaroslaw B
    Univ Warmia & Mazury, Fac Med Sci, Dept Radiol, Olsztyn, Poland.
    Falkerby, Jenny
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Onkologisk endokrinologi.
    Valle, Juan W.
    Univ Manchester, Inst Canc Sci, Christie NHS Fdn Trust, Dept Med Oncol, Manchester, Lancs, England.
    Kulke, Matthew H
    Harvard Med Sch, Dana Farber Canc Inst, Dept Med Oncol, Boston, MA USA.
    Caplin, Martyn E
    Royal Free Hosp, Neuroendocrine Tumour Unit, London, England.
    Sundin, Anders (Medarbetare/bidragsgivare)
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Radiologi.
    Tiensuu Janson, Eva (Medarbetare/bidragsgivare)
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Onkologisk endokrinologi.
    Welin, Staffan (Medarbetare/bidragsgivare)
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Onkologisk endokrinologi.
    Unmet Medical Needs in Pulmonary Neuroendocrine (Carcinoid) Neoplasms2019Ingår i: Neuroendocrinology, ISSN 0028-3835, E-ISSN 1423-0194, Vol. 108, nr 1, s. 7-17Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Pulmonary carcinoids (PCs) display the common features of all well-differentiated neuroendocrine neoplasms (NEN) and are classified as low- and intermediate-grade malignant tumours (i.e., typical and atypical carcinoid, respectively). There is a paucity of randomised studies dedicated to advanced PCs and management principles are drawn from the larger gastroenteropancreatic NEN experience. There is growing evidence that NEN anatomic subgroups have different biology and different responses to treatment and, therefore, should be investigated as separate entities in clinical trials. In this review, we discuss the existing evidence and limitations of tumour classification, diagnostics and staging, prognostication, and treatment in the setting of PC, with focus on unmet medical needs and directions for the future.

  • 139. Baumann, Pia
    et al.
    Nyman, Jan
    Hoyer, Morten
    Wennberg, Berit
    Gagliardi, Giovanna
    Lax, Ingmar
    Drugge, Ninni
    Ekberg, Lars
    Friesland, Signe
    Johansson, Karl-Axel
    Lund, Jo-Asmund
    Morhed, Elisabeth
    Nilsson, Kristina
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
    Levin, Nina
    Paludan, Merete
    Sederholm, Christer
    Traberg, Anders
    Wittgren, Lena
    Lewensohn, Rolf
    Outcome in a prospective phase II trial of medically inoperable stage I non-small-cell lung cancer patients treated with stereotactic body radiotherapy.2009Ingår i: Journal of Clinical Oncology, ISSN 0732-183X, E-ISSN 1527-7755, Vol. 27, nr 20, s. 3290-6Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    PURPOSE: The impact of stereotactic body radiotherapy (SBRT) on 3-year progression-free survival of medically inoperable patients with stage I non-small-cell lung cancer (NSCLC) was analyzed in a prospective phase II study.

    PATIENTS AND METHODS: Fifty-seven patients with T1NOMO (70%) and T2N0M0 (30%) were included between August 2003 and September 2005 at seven different centers in Sweden, Norway, and Denmark and observed up to 36 months. SBRT was delivered with 15 Gy times three at the 67% isodose of the planning target volume.

    RESULTS: Progression-free survival at 3 years was 52%. Overall- and cancer-specific survival at 1, 2, and 3 years was 86%, 65%, 60%, and 93%, 88%, 88%, respectively. There was no statistically significant difference in survival between patients with T1 or T2 tumors. At a median follow-up of 35 months (range, 4 to 47 months), 27 patients (47%) were deceased, seven as a result of lung cancer and 20 as a result of concurrent disease. Kaplan-Meier estimated local control at 3 years was 92%. Local relapse was observed in four patients (7%). Regional relapse was observed in three patients (5%). Nine patients (16%) developed distant metastases. The estimated risk of all failure (local, regional, or distant metastases) was increased in patients with T2 (41%) compared with those with T1 (18%) tumors (P = .027).

    CONCLUSION: With a 3-year local tumor control rate higher than 90% with limited toxicity, SBRT emerges as state-of-the-art treatment for medically inoperable stage I NSCLC and may even challenge surgery in operable instances.

  • 140.
    Beckmann, Kerri
    et al.
    Univ South Australia, UniSA Canc Res Inst, Adelaide, SA, Australia;Kings Coll London, Sch Canc & Pharmaceut Studies Translat Oncol, Sch Canc & Pharmaceut Studies, TOUR, London, England.
    Russell, Beth
    Kings Coll London, Sch Canc & Pharmaceut Studies Translat Oncol, Sch Canc & Pharmaceut Studies, TOUR, London, England.
    Josephs, Debra
    Kings Coll London, Sch Canc & Pharmaceut Studies Translat Oncol, Sch Canc & Pharmaceut Studies, TOUR, London, England.
    Garmo, Hans
    Kings Coll London, Sch Canc & Pharmaceut Studies Translat Oncol, Sch Canc & Pharmaceut Studies, TOUR, London, England;Uppsala Univ Hosp, Reg Canc Ctr Uppsala, Uppsala, Sweden.
    Häggström, Christel
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi. Umea Univ, Dept Biobank Res, Umea, Sweden.
    Holmberg, Lars
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi. Kings Coll London, Sch Canc & Pharmaceut Studies Translat Oncol, Sch Canc & Pharmaceut Studies, TOUR, London, England.
    Stattin, Pär
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Urologkirurgi.
    Van Hemelrijck, Mieke
    Kings Coll London, Sch Canc & Pharmaceut Studies Translat Oncol, Sch Canc & Pharmaceut Studies, TOUR, London, England;Karolinska Inst, Inst Environm Med, Unit Epidemiol, Stockholm, Sweden.
    Adolfsson, Jan
    Karolinska Inst, CLINTEC Dept, Stockholm, Sweden.
    Chronic inflammatory diseases, anti-inflammatory medications and risk of prostate cancer: a population-based case-control study2019Ingår i: BMC Cancer, ISSN 1471-2407, E-ISSN 1471-2407, Vol. 19, artikel-id 612Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Whether chronic inflammation increases prostate cancer risk remains unclear. This study investigated whether chronic inflammatory diseases (CID) or anti-inflammatory medication use (AIM) were associated with prostate cancer risk.

    Methods: Fifty-five thousand nine hundred thirty-seven cases (all prostate cancer, 2007-2012) and 279,618 age-matched controls were selected from the Prostate Cancer Database Sweden. CIDs and AIMs was determined from national patient and drug registers. Associations were investigated using conditional logistic regression, including for disease/drug subtypes and exposure length/dose.

    Results: Men with a history of any CID had slightly increased risk of any prostate cancer diagnosis (OR: 1.08; 95%CI: 1.04-1.12) but not unfavourable' (high-risk or advanced) prostate cancer. Generally, risk of prostate cancer was highest for shorter exposure times. However, a positive association was observed for asthma >5years before prostate cancer diagnosis (OR: 1.21; 95%CI: 1.05-1.40). Risk of prostate cancer was increased with prior use of any AIMs (OR: 1.26; 95%CI: 1.24-1.29). A positive trend with increasing cumulative dose was only observed for inhaled glucocorticoids (p<0.011).

    Conclusion: Detection bias most likely explains the elevated risk of prostate cancer with prior history of CIDs or use of AIMs, given the higher risk immediately after first CID event and lack of dose response. However, findings for length of time with asthma and dose of inhaled glucocorticoids suggest that asthma may increase risk of prostate cancer through other pathways.

  • 141.
    Bellomo, Claudia
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk biokemi och mikrobiologi. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Ludwiginstitutet för cancerforskning. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Caja, Laia
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk biokemi och mikrobiologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Ludwiginstitutet för cancerforskning.
    Moustakas, Aristidis
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk biokemi och mikrobiologi. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Ludwiginstitutet för cancerforskning. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Transforming growth factor beta as regulator of cancer stemness and metastasis2016Ingår i: British Journal of Cancer, ISSN 0007-0920, E-ISSN 1532-1827, Vol. 115, nr 7, s. 761-769Artikel, forskningsöversikt (Refereegranskat)
    Abstract [en]

    Key elements of cancer progression towards metastasis are the biological actions of cancer stem cells and stromal cells in the tumour microenvironment. Cross-communication between tumour and stromal cells is mediated by secreted cytokines, one of which, the transforming growth factor beta (TGF beta), regulates essentially every cell within the malignant tissue. In this article, we focus on the actions of TGF beta on cancer stem cells, cancer-associated fibroblasts and immune cells that assist the overall process of metastatic dissemination. We aim at illustrating intricate connections made by various cells in the tumour tissue and which depend on the action of TGF beta.

  • 142.
    Benda, Birgitta
    Uppsala universitet, Medicinska vetenskapsområdet, Medicinska fakulteten, Institutionen för onkologi, radiologi och klinisk immunologi.
    Islet xenotransplantation: An immunological study in the pig-to-mouse model1999Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [en]

    Successful clinical xenotransplantation, i.e., transplantation between species, would eliminate the shortage of donor organs. In order to study the acute cellular rejection reaction following discordant xenogeneic transplantation, an experimental pig-to- mouse islet xenotransplantation model was established. Further, immunological processes were evaluated using genetically deficient (knock-out) recipient mice and pharmacological agents exerting cytokine-modulatory actions.

    Xenogeneic islet transplantation persists in mice deficient in antibodies, interleukin-6, perforin or granzyme B, suggesting that neither xenoreactive antibodies or interleukin-6 nor granule-mediated lysis are of critical importance to the rejection process. Instead, the immune response following pig-to-mouse islet xenotransplantation bears a close morphological resemblance to a T helper (Th) 1-dependent delayed-type hypersensitivity-reaction with a massive infiltration of macrophages and comparatively small amounts of peripherally accumulated T cells. It may be speculated that islet xenograft destruction is a macrophage-mediated process regulated by T cells. Indeed, Th1-associated cytokines with macrophage-activating properties (interferon-γ and tumor necrosis factor-α) and interleukin-2 seem to be important to islet xenograft rejection, even though other cytokines eventually substitute for the lack of those in a majority of animals.

    Key words: xenotransplantation, porcine, islet, in vivo, knock-out mouse,immunohistochemistry, CsA, MDL 201,449A, Ig, FcR, IL-6, perforin, granzyme B,macrophage, eosinophilic granulocyte, T cell, TCR, IFN- g, TNF- a, IL-2.

  • 143.
    Bender, Brendan C
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Farmaceutiska fakulteten, Institutionen för farmaceutisk biovetenskap.
    Schindler, Emilie
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Farmaceutiska fakulteten, Institutionen för farmaceutisk biovetenskap.
    Friberg, Lena E
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Farmaceutiska fakulteten, Institutionen för farmaceutisk biovetenskap.
    Population pharmacokinetic pharmacodynamic modelling in oncology: a tool for predicting clinical response2015Ingår i: British Journal of Clinical Pharmacology, ISSN 0306-5251, E-ISSN 1365-2125, Vol. 79, nr 1, s. 56-71Artikel, forskningsöversikt (Refereegranskat)
    Abstract [en]

    In oncology trials, overall survival (OS) is considered the most reliable and preferred endpoint to evaluate the benefit of drug treatment. Other relevant variables are also collected from patients for a given drug and its indication, and it is important to characterize the dynamic effects and links between these variables in order to improve the speed and efficiency of clinical oncology drug development. However, the drug-induced effects and causal relationships are often difficult to interpret because of temporal differences. To address this, population pharmacokinetic-pharmacodynamic (PKPD) modelling and parametric time-to-event (TTE) models are becoming more frequently applied. Population PKPD and TTE models allow for exploration towards describing the data, understanding the disease and drug action over time, investigating relevance of biomarkers, quantifying patient variability and in designing successful trials. In addition, development of models characterizing both desired and adverse effects in a modelling framework support exploration of risk-benefit of different dosing schedules. In this review, we have summarized population PKPD modelling analyses describing tumour, tumour marker and biomarker responses, as well as adverse effects, from anticancer drug treatment data. Various model-based metrics used to drive PD response and predict OS for oncology drugs and their indications are also discussed.

  • 144.
    Bengtsson, Daniel
    et al.
    Linkoping Univ, Dept Clin & Expt Med, S-58183 Linkoping, Sweden.;Kalmar Cty Hosp, Dept Internal Med, S-39185 Kalmar, Sweden..
    Joost, Patrick
    Lund Univ, Inst Clin Sci, Dept Oncol & Pathol, S-22184 Lund, Sweden..
    Aravidis, Christos
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Medicinsk genetik och genomik.
    Stenmark, Marie Askmalm
    Linkoping Univ, Div Clin Genet, Dept Clin & Expt Med, S-58185 Linkoping, Sweden.;Off Med Serv, Dept Clin Genet, S-22184 Lund, Sweden.;Lund Univ, Div Clin Genet, Dept Lab Med, S-22184 Lund, Sweden..
    Backman, Ann-Sofie
    Karolinska Univ Hosp, Ctr Digest Dis, S-17176 Stockholm, Sweden.;Karolinska Inst, Inst Med, S-17176 Stockholm, Sweden..
    Melin, Beatrice
    Umea Univ, Dept Radiat Sci, Oncol, S-90187 Umea, Sweden..
    von Salome, Jenny
    Karolinska Inst, Dept Mol Med & Surg, S-17176 Stockholm, Sweden.;Karolinska Univ Hosp, Dept Clin Genet, S-17176 Stockholm, Sweden..
    Zagoras, Theofanis
    Sahlgrens Univ Hosp, Dept Clin Pathol & Genet, S-41345 Gothenburg, Sweden..
    Gebre-Medhin, Samuel
    Lund Univ, Div Clin Genet, Dept Lab Med, S-22184 Lund, Sweden.;Karolinska Univ Hosp, Dept Clin Genet, S-17176 Stockholm, Sweden..
    Burman, Pia
    Lund Univ, Dept Endocrinol, Skane Univ Hosp, SE-20502 Malmo, Sweden..
    Corticotroph Pituitary Carcinoma in a Patient With Lynch Syndrome (LS) and Pituitary Tumors in a Nationwide LS Cohort2017Ingår i: Journal of Clinical Endocrinology and Metabolism, ISSN 0021-972X, E-ISSN 1945-7197, Vol. 102, nr 11, s. 3928-3932Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Context: Lynch syndrome (LS) is a cancer-predisposing syndrome caused by germline mutations in genes involved in DNA mismatch repair (MMR). Patients are at high risk for several types of cancer, but pituitary tumors have not previously been reported. Case: A 51-year-old man with LS (MSH2 mutation) and a history of colon carcinoma presented with severe Cushing disease and a locally aggressive pituitary tumor. The tumor harbored a mutation consistent with the patient's germline mutation and displayed defect MMR function. Sixteen months later, the tumor had developed into a carcinoma with widespread liver metastases. The patient prompted us to perform a nationwide study in LS. Nationwide Study: A diagnosis consistent with a pituitary tumor was sought for in the Swedish National Patient Registry. In 910 patients with LS, representing all known cases in Sweden, another two clinically relevant pituitary tumors were found: an invasive nonsecreting macroadenoma and a microprolactinoma (i.e., in total three tumors vs. one expected). Conclusion: Germline mutations in MMR genes may contribute to the development and/or the clinical course of pituitary tumors. Because tumors with MMR mutations are susceptible to treatment with immune checkpoint inhibitors, we suggest to actively ask for a family history of LS in the workup of patients with aggressive pituitary tumors.

  • 145. Bennati, Paolo
    et al.
    Dasu, Alexandru
    Colarieti-Tosti, Massimiliano
    Lönn, Gustaf
    Larsson, David
    Fabbri, Andrea
    Galasso, Matteo
    Cinti, Maria Nerina
    Pellegrini, Rosanna
    Pani, Roberto
    Preliminary study of a new gamma imager for on-line proton range monitoring during proton radiotherapy2017Ingår i: Journal of Instrumentation, ISSN 1748-0221, E-ISSN 1748-0221, Vol. 12, nr 5, s. C05009-Artikel i tidskrift (Refereegranskat)
  • 146.
    Bens, Annet
    et al.
    Danish Canc Soc, Res Ctr, Copenhagen, Denmark..
    Papadopoulos, Fotios
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för neurovetenskap, Psykiatri, Akademiska sjukhuset.
    Pukkala, Eero
    Finnish Canc Registry, Inst Stat & Epidemiol Canc Res, Helsinki, Finland.;Univ Tampere, Fac Social Sci, Tampere, Finland..
    Ekbom, Anders
    Karolinska Inst, Karolinska Univ Hosp, Dept Med Solna, Clin Epidemiol Unit, Stockholm, Sweden..
    Gissler, Mika
    THL Natl Inst Hlth & Welf, Informat Serv Dept, Helsinki, Finland.;Karolinska Inst, Div Family Med, Dept Neurobiol Care Sci & Soc, Stockholm, Sweden..
    Mellemkjaer, Lene
    Danish Canc Soc, Res Ctr, Copenhagen, Denmark..
    Worse survival after breast cancer in women with anorexia nervosa2018Ingår i: Breast Cancer Research and Treatment, ISSN 0167-6806, E-ISSN 1573-7217, Vol. 168, nr 2, s. 495-500Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A history of anorexia nervosa has been associated with a reduced risk of developing breast cancer. We investigated survival after breast cancer among women with a prior anorexia nervosa diagnosis compared with women in a population comparison group. This register-based study included combined data from Sweden, Denmark and Finland. A total of 76 and 1462 breast cancer cases identified among 22,654 women with anorexia nervosa and 224,619 women in a population comparison group, respectively, were included in the study. Hazard ratios (HR) for overall and breast cancer-specific mortality after breast cancer diagnosis were estimated using Cox regression. Cause of death was available only for Swedish and Danish women; therefore, the analysis on breast cancer-specific mortality was restricted to these women. We observed 23 deaths after breast cancer among anorexia nervosa patients and 247 among population comparisons. The overall mortality after the breast cancer diagnosis was increased in women with a history of anorexia nervosa compared with population comparisons (HR 2.5, 95% CI 1.6-3.9) after adjustment for age, period and extent of disease. Results were similar for overall (HR 2.3, 95% CI 1.4-3.6) and breast cancer-specific mortality (HR 2.1, 95% CI 1.3-3.6) among Swedish and Danish women. We found that female breast cancer patients with a prior diagnosis of anorexia nervosa have a worse survival compared with other breast cancer patients.

  • 147. Berenjian, Saideh
    et al.
    Hu, Kefei
    Abedi-Valugerdi, Manuchehr
    Hassan, Moustapha
    Hassan, Sadia Bashir
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Cancerfarmakologi och beräkningsmedicin.
    Morein, Bror
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Klinisk mikrobiologi och infektionsmedicin.
    The nanoparticulate Quillaja saponin KGI exerts anti-proliferative eff ects by down-regulation of cell cycle molecules in U937 and HL-60 human leukemia cells2014Ingår i: Leukemia and Lymphoma, ISSN 1042-8194, E-ISSN 1029-2403, Vol. 55, nr 7, s. 1618-1624Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Cancer cells are characterized by uncontrolled replication involving loss of control of cyclin dependent kinases (CDKs) and cyclins, and by abolished differentiation. In this study we introduce KGI, which is a nanoparticle with a Quillaja saponin as an active molecule. By the use of RNA array analysis and confirmation at the protein level, we show that KGI affects myeloid leukemia cells (in particular, the U937 monoblast cancer cell) by the following mechanisms: (A) ceasing cell replication via proteasome degradation, (B) down-regulation of key molecules at check points between G1/S and G2/M phases, (C) reduction of thymidine kinase activity, followed by (D) exit to differentiation and production of interleukin-8 (IL-8), eventually leading to apoptosis. Leukemia cell lines (U937 and HL-60 cells) were exposed to KGI for 8 h, after which the drug was removed. The cancer cells did not revert to replication over the following 10 days. Thus our findings suggest that the nanoparticle KGI inhibits proliferation and promotes differentiation in leukemic cells by interfering with the cell cycle process.

  • 148.
    Berg, L.
    et al.
    Karolinska Inst, S-10401 Stockholm, Sweden..
    Sundström, Y.
    Karolinska Inst, S-10401 Stockholm, Sweden..
    Aftab, Obaid
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Cancerfarmakologi och beräkningsmedicin.
    Bergqvist, F.
    Karolinska Inst, S-10401 Stockholm, Sweden..
    Kultima, Kim
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Cancerfarmakologi och beräkningsmedicin.
    Gustafsson, Mats
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Cancerfarmakologi och beräkningsmedicin.
    Larsson, Rolf
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Cancerfarmakologi och beräkningsmedicin.
    Sundström, M.
    Karolinska Inst, S-10401 Stockholm, Sweden..
    Ossipova, E.
    Karolinska Inst, S-10401 Stockholm, Sweden..
    Lengqvist, J.
    Karolinska Inst, S-10401 Stockholm, Sweden..
    Jakobsson, P-J
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Cancerfarmakologi och beräkningsmedicin.
    Rubin, Jenny
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Biokemisk struktur och funktion.
    Characterizing the effects of epigenetic regulation in assays using peripheral blood mononuclear cells from patients with inflammatory diseases2016Ingår i: Scandinavian Journal of Rheumatology, ISSN 0300-9742, E-ISSN 1502-7732, Vol. 45, s. 44-45Artikel i tidskrift (Övrigt vetenskapligt)
  • 149.
    Bergfelt, Emma
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Hematologi.
    Kozlowski, Piotr
    Ahlberg, Lucia
    Hulegardh, Erik
    Hagglund, Hans
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Hematologi.
    Karlsson, Karin
    Markuszewska-Kuczymska, Alicja
    Tomaszewska-Toporska, Beata
    Smedmyr, Bengt
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Hematologi.
    Astrom, Maria
    Amini, Rose-Marie
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi.
    Hallböök, Hélene
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Hematologi.
    Satisfactory outcome after intensive chemotherapy with pragmatic use of minimal residual disease (MRD) monitoring in older patients with Philadelphia-negative B cell precursor acute lymphoblastic leukaemia: a Swedish registry-based study2015Ingår i: Medical Oncology, ISSN 1357-0560, E-ISSN 1559-131X, Vol. 32, nr 4, artikel-id 135Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The introduction of minimal residual disease (MRD) monitoring, in the Swedish national guidelines for acute lymphoblastic leukaemia, was evaluated in 35 patients aged 46-79 years (median 61), who were diagnosed from 2007 to 2011 and treated with high-intensity, block-based chemotherapy (ABCDV/VABA induction). Both a high complete remission rate (91 %) and acceptable overall survival (OS) rate (47 %) at 5 years were achieved. MRD by flow cytometry was measured in 73 % of the patients reaching complete remission after the first course, but was omitted by the clinicians for eight patients who were either over 70 years of age or already met conventional high-risk criteria. Factors negatively influencing OS were age over 65 years and WHO status >= 2. MRD < 0.1 % after induction had positive impact on continuous complete remission but not on OS. Only five patients were allocated to allogeneic haematopoietic stem cell transplantation in first remission, mainly due to conventional high risk factors. Thus, use of intensive remission induction therapy is effective in a selection of older patients. In a population for whom the possibilities of treatment escalation are limited, the optimal role of MRD monitoring remains to be determined.

  • 150.
    Berggrund, Malin
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Medicinsk genetik och genomik. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Enroth, Stefan
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Medicinsk genetik och genomik.
    Lundberg, Martin
    OLINK Prote, Uppsala Sci Pk, SE-75183 Uppsala, Sweden.
    Assarsson, Erika
    OLINK Prote, Uppsala Sci Pk, SE-75183 Uppsala, Sweden.
    Stålberg, Karin
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kvinnors och barns hälsa, Forskargrupper (Inst. för kvinnor och barns hälsa), Reproduktiv hälsa.
    Lindquist, David
    Umeå Univ, Dept Radiat Sci, SE-90187 Umeå, Sweden.
    Hallmans, Göran
    Umeå Univ, Dept Publ Hlth & Clin Med, Nutr Res, SE-90187 Umeå, Sweden.
    Grankvist, Kjell
    Umeå Univ, Dept Med Biosci, Clin Chem, SE-90187 Umeå, Sweden.
    Olovsson, Matts
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kvinnors och barns hälsa, Forskargrupper (Inst. för kvinnor och barns hälsa), Reproduktionsbiologi.
    Gyllensten, Ulf
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Medicinsk genetik och genomik.
    Identification of Candidate Plasma Protein Biomarkers for Cervical Cancer Using the Multiplex Proximity Extension Assay2019Ingår i: Molecular & Cellular Proteomics, ISSN 1535-9476, E-ISSN 1535-9484, Vol. 18, nr 4, s. 735-743Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Human papillomavirus (HPV) is recommended as the primary test in cervical cancer screening, with co-testing by cytology for HPV-positive women to identify cervical lesions. Cytology has low sensitivity and there is a need to identify biomarkers that could identify dysplasia that are likely to progress to cancer. We searched for plasma proteins that could identify women with cervical cancer using the multiplex proximity extension assay (PEA). The abundance of 100 proteins were measured in plasma collected at the time of diagnosis of patients with invasive cervical cancer and in population controls using the Olink Multiplex panels CVD II, INF I, and ONC II. Eighty proteins showed increased levels in cases compared with controls. We identified a signature of 11 proteins (PTX3, ITGB1BP2, AXIN1, STAMPB, SRC, SIRT2, 4E-BP1, PAPPA, HB-EGF, NEMO and IL27) that distinguished cases and controls with a sensitivity of 0.96 at a specificity of 1.0. This signature was evaluated in a prospective replication cohort with samples collected before, at or after diagnosis and achieved a sensitivity of 0.78 and a specificity 0.56 separating samples collected at the time of diagnosis of invasive cancer from samples collected prior to diagnosis. No difference in abundance was seen between samples collected prior to diagnosis or after treatment as compared with population controls, indicating that this protein signature is mainly informative close to time of diagnosis. Further studies are needed to determine the optimal window in time prior to diagnosis for these biomarker candidates.

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