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  • 1.
    Amoroso, Vito
    et al.
    Univ Brescia, ASST Spedali Civili, Dept Med & Surg Specialties, Radiol Sci & Publ Hlth,Med Oncol Unit, I-25123 Brescia, Italy.
    Pavel, Marianne
    Friedrich Alexander Univ Erlangen Nurnberg, Div Endocrinol, Dept Med, D-91012 Erlangen, Germany.
    Claps, Melanie
    Univ Brescia, ASST Spedali Civili, Dept Med & Surg Specialties, Radiol Sci & Publ Hlth,Med Oncol Unit, I-25123 Brescia, Italy.
    Roca, Elisa
    Univ Brescia, ASST Spedali Civili, Dept Med & Surg Specialties, Radiol Sci & Publ Hlth,Med Oncol Unit, I-25123 Brescia, Italy.
    Ravanelli, Marco
    Univ Brescia, ASST Spedali Civili, Dept Med & Surg Specialties, Radiol Sci & Publ Hlth,Radiol Unit, I-25123 Brescia, Italy.
    Maroldi, Roberto
    Univ Brescia, ASST Spedali Civili, Dept Med & Surg Specialties, Radiol Sci & Publ Hlth,Radiol Unit, I-25123 Brescia, Italy.
    Öberg, Kjell
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Berruti, Alfredo
    Univ Brescia, ASST Spedali Civili, Dept Med & Surg Specialties, Radiol Sci & Publ Hlth,Med Oncol Unit, I-25123 Brescia, Italy.
    IFN-alpha in advanced well-differentiated neuroendocrine tumors: the neglected drug?2018Inngår i: Future Oncology, ISSN 1479-6694, E-ISSN 1744-8301, Vol. 14, nr 10, s. 897-899Artikkel i tidsskrift (Annet vitenskapelig)
  • 2.
    Anthony, L.
    et al.
    Univ Kentucky, Lexington, KY USA..
    Kulke, M. H.
    Dana Farber Canc Inst, Boston, MA 02115 USA..
    Hoersch, D.
    Zent Klin Bad Berka, Bad Berka, Germany..
    Bergsland, E.
    UCSF Helen Diller Family Comprehens Canc Ctr, San Francisco, CA USA..
    Öberg, Kjell
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Welin, Staffan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Onkologisk endokrinologi.
    Lombard-Bohas, C.
    Hosp Civils Lyon, Hop Edouard Herriot, Lyon, France..
    Kunz, P.
    Stanford Univ, Palo Alto, CA 94304 USA..
    Valle, J. W.
    Univ Manchester, Christie NHS Fdn Trust, Manchester, Lancs, England..
    Kassler-Taub, K.
    Lexicon Pharmaceut Inc, The Woodlands, TX USA..
    Fleming, R.
    Charite, Berlin, Germany..
    Pavel, M.
    Charite, Berlin, Germany..
    Impact of Concomitant Medication on Efficacy of Telotristat Ethyl - A Post Hoc Subgroup Analysis of the Phase 3 TELESTAR Study in Carcinoid Syndrome2017Inngår i: Neuroendocrinology, ISSN 0028-3835, E-ISSN 1423-0194, Vol. 105, s. 212-212Artikkel i tidsskrift (Annet vitenskapelig)
  • 3.
    Anthony, Lowell B.
    et al.
    Univ Kentucky, Markey Canc Ctr, Lexington, KY USA.
    Kulke, Matthew H.
    Boston Univ, Med Ctr, Boston, MA USA.
    Caplin, Martyn E.
    Royal Free Hosp, ENETS Ctr Excellence, Neuroendocrine Tumor Unit, London, England.
    Bergsland, Emily
    Univ Calif San Francisco, Dept Med, San Francisco, CA USA.
    Öberg, Kjell
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Pavel, Marianne
    Charite, Dept Hepatol & Gastroenterol, Berlin, Germany.
    Hoersch, Dieter
    Zentralklin Bad Berka, Ctr Neuroendocrine Tumors, Dept Gastroenterol Endocrinol, Bad Berka, Germany.
    Warner, Richard R. P.
    Icahn Sch Med Mt Sinai, Div Gastroenterol, New York, NY 10029 USA.
    O'Dorisio, Thomas M.
    Univ Iowa, Dept Internal Med Endocrinol & Metab, Iowa City, IA USA.
    Dillon, Joseph S.
    Univ Iowa, Dept Internal Med Endocrinol & Metab, Iowa City, IA USA.
    Lapuerta, Pablo
    Lexicon Pharmaceut Inc, The Woodlands, TX USA.
    Kassler-Taub, Kenneth
    Lexicon Pharmaceut Inc, The Woodlands, TX USA.
    Liang, Wenjun
    Lexicon Pharmaceut Inc, The Woodlands, TX USA.
    Long-Term Safety Experience with Telotristat Ethyl Across Five Clinical Studies in Patients with Carcinoid Syndrome2019Inngår i: The Oncologist, ISSN 1083-7159, E-ISSN 1549-490X, Vol. 24, nr 8, s. E662-E670Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background Patients with neuroendocrine tumors (NETs) and carcinoid syndrome experience considerable morbidity and mortality; carcinoid syndrome may be associated with shorter survival. Carcinoid syndrome is linked to tumoral secretion of serotonin and other bioactive substances. The subsequent debilitating diarrhea and urgency to defecate pose significant health risks. In previous studies, telotristat ethyl, a tryptophan hydroxylase inhibitor, was effective and well tolerated in treating carcinoid syndrome diarrhea. We present pooled safety data from five clinical trials with telotristat ethyl in patients with carcinoid syndrome. Subjects, Materials, and Methods Adverse events reported during telotristat ethyl treatment were pooled from two phase II and three phase III clinical trials in 239 patients with carcinoid syndrome. Long-term safety of telotristat ethyl and causes of hospitalization and death were reviewed; overall survival was estimated. Results Mean (median; range) duration of exposure and follow-up was 1.3 years (1.1 years; 1 week to 5.7 years), with 309 total patient-years of exposure. Leading causes of hospitalization were gastrointestinal disorders or were related to the underlying tumor and related treatment. Survival estimates at 1, 2, and 3 years were 93%, 88%, and 77%. Nearly all deaths were due to progression or complication of the underlying disease; none were attributable to telotristat ethyl. There was one death in year 4. Conclusion Based on long-term safety data, telotristat ethyl is well tolerated and has a favorable long-term safety profile in patients with carcinoid syndrome. Implications for Practice Carcinoid syndrome can cause persistent diarrhea, even in patients treated with somatostatin analogs. Across five clinical trials in patients with carcinoid syndrome, telotristat ethyl has been well tolerated and efficacious, providing clinicians with a new approach to help control carcinoid syndrome diarrhea, in addition to somatostatin analog therapy. By reducing the stool frequency in patients with carcinoid syndrome whose diarrhea is refractory to anticholinergics, such as loperamide and atropine/diphenoxylate, and somatostatin analog dose escalation, improvement in quality of life becomes an achievable goal.

  • 4.
    Anthony, Lowell
    et al.
    Univ Kentucky, Markey Canc Ctr, Lexington, KY USA..
    Ervin, Claire
    RTI Hlth Solut, Res Triangle Pk, NC USA..
    Lapuerta, Pablo
    Lexicon Pharmaceut Inc, 8800 Technol Forest Pl, The Woodlands, TX 77385 USA..
    Kulke, Matthew H.
    Dana Farber Canc Inst, Boston, MA 02115 USA..
    Kunz, Pamela
    Stanford Canc Ctr, Stanford, CA USA..
    Bergsland, Emily
    UCSF Helen Diller Family Comprehens Canc Ctr, San Francisco, CA USA..
    Hörsch, Dieter
    Zent Klin Bad Berka GmbH, Klin Innerre Med Gastroenterol & Endokrinol, Bad Berka, Germany..
    Metz, David C.
    Univ Penn, Perelman Sch Med, Philadelphia, PA 19104 USA..
    Pasieka, Janice
    Tom Baker Canc Clin, Calgary, AB, Canada..
    Paylakis, Nick
    Royal North Shore Hosp, St Leonards, NSW, Australia..
    Pavel, Marianne
    Charite, Berlin, Germany..
    Caplin, Martyn
    Royal Free Hosp, London, England..
    Öberg, Kjell
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Ramage, John
    Hampshire Hosp NHS Trust, Basingstoke & North Hampshire Hosp, Basingstoke, Hants, England..
    Evans, Emily
    RTI Hlth Solut, Res Triangle Pk, NC USA..
    Yang, Qi Melissa
    Lexicon Pharmaceut Inc, 8800 Technol Forest Pl, The Woodlands, TX 77385 USA..
    Jackson, Shanna
    Lexicon Pharmaceut Inc, 8800 Technol Forest Pl, The Woodlands, TX 77385 USA..
    Arnold, Katie
    Lexicon Pharmaceut Inc, 8800 Technol Forest Pl, The Woodlands, TX 77385 USA..
    Law, Linda
    Lexicon Pharmaceut Inc, 8800 Technol Forest Pl, The Woodlands, TX 77385 USA.;BioHealthConsult, 2143 Riverside Dr, Cincinnati, OH 45202 USA..
    DiBenedetti, Dana B.
    RTI Hlth Solut, Res Triangle Pk, NC USA..
    Understanding the Patient Experience with Carcinoid Syndrome: Exit Interviews from a Randomized, Placebo-controlled Study of Telotristat Ethyl2017Inngår i: Clinical Therapeutics, ISSN 0149-2918, E-ISSN 1879-114X, Vol. 39, nr 11, s. 2158-2168Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Purpose: Telotristat ethyl, an oral tryptophan hydroxylase inhibitor, is intended to treat carcinoid syndrome by reducing serotonin production. Telotristat ethyl was evaluated in FELESTAR, a Phase HI study for patients who had carcinoid syndrome with at least 4 bowel movements (BMs) per day and who were receiving somatostatin analogue therapy. This interview sub study was conducted to provide insight into the patient experience in ILLESTAR and to help understand whether reductions in BM frequency (the primary end point) and other symptoms were clinically meaningful. Methods: Participating sites were asked to invite (before randomization) all eligible patients to telephone interviews scheduled at the end of the double-blind treatment period. Patients and interviewers were blinded to treatment. Findings: All 35 interviewed participants reported diarrhea and/or excessive BMs at baseline. Patients reported that these symptoms negatively affected emotional, social, physical, and occupational well-being. Prespecified criteria for treatment response (achieving >= 30% reduction in BM frequency for at least 50% of the days) were met by 8 of 26 patients taking telotristat ethyl and 1 of 9 patients taking placebo. All 8 patients taking telotristat ethyl described clinically meaningful reductions in BM frequency and were very satisfied with the ability of the study drug to control their carcinoidsyndrome symptoms. Overall, reports of being very satisfied were observed in 12 patients taking telotristat ethyl and 0 taking placebo. Implications: Patient interviews revealed that I ELESTAR patients, at baseline, were significantly affected by their high BM frequency. Patient reports of their clinical trial experience supported the significance of the primary end point and clinical responder analysis in TELESTAR, helping identify and understand clinically meaningful change produced by telotristat ethyl. (C) 2017 The Authors. Published by Elsevier HS Journals, Inc.

  • 5.
    Anthony, Lowell
    et al.
    Univ Kentucky, Lexington, KY USA..
    Hoersch, Dieter
    Zentralklin Bad Berka, Bad Berka, Germany..
    Ervin, Claire
    RTI Hlth Solut, Res Triangle Pk, NC USA..
    Kulke, Matthew H.
    Dana Farber Canc Inst, Boston, MA 02115 USA..
    Pavel, Marianne
    Charite, D-13353 Berlin, Germany..
    Bergsland, Emily
    UCSF Helen Diller Family Comprehens Canc Ctr, San Francisco, CA USA..
    Caplin, Martyn
    Royal Free Hosp, Pond St, London NW3 2QG, England..
    Öberg, Kjell
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Warner, Richard
    Icahn Sch Med Mt Sinai, New York, NY 10029 USA..
    Kunz, Pamela
    Stanford Univ, Palo Alto, CA 94304 USA..
    Metz, David C.
    Univ Penn, Perelman Sch Med, Philadelphia, PA 19104 USA..
    Pasieka, Janice
    Tom Baker Canc Ctr Calgary, Calgary, AB, Canada..
    Pavlakis, Nick
    Royal N Shore Hosp, St Leonards, NSW 2065, Australia..
    DiBenedetti, Dana
    RTI Hlth Solut, Res Triangle Pk, NC USA..
    Haydysch, Emily
    RTI Hlth Solut, Res Triangle Pk, NC USA..
    Yang, Qi Melissa
    Lexicon Pharmaceut Inc, The Woodlands, TX USA..
    Jackson, Shanna
    Lexicon Pharmaceut Inc, The Woodlands, TX USA..
    Arnold, Karie
    Lexicon Pharmaceut Inc, The Woodlands, TX USA..
    Law, Linda
    Lexicon Pharmaceut Inc, The Woodlands, TX USA..
    Lapuerta, Pablo
    Lexicon Pharmaceut Inc, The Woodlands, TX USA..
    Assessing Treatment Benefit of Telotristat Etiprate in Patients with Carcinoid Syndrome: Patient Exit Interviews2016Inngår i: Pancreas, ISSN 0885-3177, E-ISSN 1536-4828, Vol. 45, nr 3, s. 470-470Artikkel i tidsskrift (Annet vitenskapelig)
  • 6.
    Antonodimitrakis, Pantelis Clewemar
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Olofsson, Helena
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Klinisk och experimentell patologi.
    Grimelius, Lars
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Experimentell och klinisk onkologi.
    Sundin, Anders
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Radiologi.
    Wassberg, Cecilia
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Radiologi.
    Granberg, Dan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Onkologisk endokrinologi.
    Skogseid, Britt
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Eriksson, Barbro
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Neuroendocrine tumors with syndromic vasoactive intestinal polypeptide hypersecretion: a retrospective study2017Inngår i: International Journal of Endocrine Oncology, Vol. 4, nr 1, s. 9-22Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Aim: Vasoactive intestinal polypeptide producing neuroendocrine tumors are rare and cause severe hormonal symptoms. Patients/methods: Eighteen patients with vasoactive intestinal polypeptide producing neuroendocrine tumors were analyzed with reviews of medical records, radiology and tumor tissue specimens. Results: Twelve patients (67%) had liver metastases at diagnosis. Chemotherapy, somatostatin analogs and interferon were given as medical therapies. Streptozocin/5-fluorouracil produced an objective response in 40% of the evaluable patients. Somatostatin analogs gave a clinical/biochemical response in eight out of nine patients. Transarterial embolization of the liver and peptide receptor radionuclide therapy was given to refractory cases. Sixteen patients died during the observation period. The median overall survival from diagnosis was 102 months. Conclusion: Systemic chemotherapy and somatostatin analogs should be given in cases of advanced disease or for hormonal symptoms.

  • 7.
    Antonodimitrakis, Pantelis
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Sundin, Anders
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Radiologi.
    Wassberg, Cecilia
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Radiologi.
    Granberg, Dan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Onkologisk endokrinologi.
    Skogseid, Britt
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Eriksson, Barbro
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Streptozocin and 5-FU for the treatment of Pancreatic Neuroendocrine Tumors: Efficacy, Prognostic Factors and Toxicity2016Inngår i: Neuroendocrinology, ISSN 0028-3835, E-ISSN 1423-0194, Vol. 103, nr 3-4, s. 345-353Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND: In our center, the combination of streptozocin (STZ) and 5-fluorouracil (5-FU) has been used as the first-line treatment in the majority of patients with pancreatic neuroendocrine tumors (pNETs) over the past few decades. The objective of the current study was to assess the efficacy, prognostic factors and safety of the combination of STZ and 5-FU.

    PATIENTS AND METHODS: Medical records and radiological reports of 133 patients with pNETs who received the combination of STZ and 5-FU during the period 1981-2014 were retrospectively evaluated.

    RESULTS: Median survival from start of treatment was 51.9 months in the whole group. In the radiologically evaluable patients (n = 100) progression-free survival was 23 months. Complete response was reached in 3 patients (3%), partial response in 25 patients (25%), 64 patients (64%) had stable disease and 8 patients (8%) had progressive disease. In a multivariate analysis, surgery of the primary tumor and having a G3 tumor were significant positive and negative prognostic factors of survival from start of treatment, respectively. Having either a G3 tumor or stage IV tumor were significant prognostic factors for shorter progression-free survival. Chemotherapy had to be discontinued in 29 patients due to side-effects, of which kidney toxicity (mainly grade 1-2) was the most frequent.

    CONCLUSION: As shown in recent reports, the combination of STZ and 5-FU is effective in the treatment of pNETs in terms of survival and radiological response, and has an acceptable toxicity profile.

  • 8.
    Antonodimitrakis, Pantelis
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Wassberg, Cecilia
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för radiologi, onkologi och strålningsvetenskap, Enheten för nuklearmedicin och PET.
    Gerovasileiou, Spyridon
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper.
    Back, Johan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Reumatologi.
    Hallgren, Roger
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper.
    Olsen, Björn
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Infektionssjukdomar.
    Fulminant hemophagocytic lymphohistiocytosis secondary to a reactivated EBV infection: A case report2013Inngår i: Upsala Journal of Medical Sciences, ISSN 0300-9734, E-ISSN 2000-1967, Vol. 118, nr 1, s. 42-45Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Hemophagocytic lymphohistiocytosis (HLH) is an aggressive inflammatory syndrome that results from inappropriate activation of the immune system. HLH has a high mortality if not treated. We describe a case of a fulminant HLH, associated with a reactivation of an EBV infection. The patient responded well to steroid treatment.

  • 9.
    Backlin, Carin
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Rastad, Jonas
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Skogseid, Britt
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Hellman, Per
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Öberg, Kjell
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Åkerström, Göran
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Juhlin, Claes
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Immunohistochemical expression of insulin-like growth factor 1 and its receptor in normal and neoplastic human adrenal cortex1995Inngår i: Anticancer Research, ISSN 0250-7005, E-ISSN 1791-7530, Vol. 15, nr 6B, s. 2453-2459Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND:

    Insulin-like growth factor 1 (IGF-1) may influence cellular growth, differentiation and secretion.

    MATERIAL AND METHODS:

    Cryosectioned normal human adrenal glands (n = 6), cortical adenoma (n = 21), and carcinoma (n = 17) were stained immunohistochemically for IGF-1 and its receptor, and human adrenocortical cancer cells expressing the receptor were analysed for influences on proliferation.

    RESULTS:

    Normal cortical parenchyma generally displayed faint IGF-1 reactivity and intracellular receptor staining. Similar labelling encompassed the adenomas, but only 6 of them were receptor reactive. IGF-1 expression was conspicuous in 11 carcinomas, and 6 of them displayed cell surface receptor reactivity. All aldosterone producing lesions were receptor antibody unreactive. Recombinant IGF-1 dose-dependently stimulated the cell proliferation, and this effect was reversed by the receptor antibody.

    CONCLUSION:

    IGF-1 may interact with function and proliferation of the human adrenal cortex with particular reference to cortical carcinomas lacking discernible aldosterone excess.

  • 10.
    Backman, Samuel
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Experimentell kirurgi.
    Norlén, Olov
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Eriksson, Barbro
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Skogseid, Britt
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Stålberg, Peter
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Crona, Joakim
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Detection of Somatic Mutations in Gastroenteropancreatic Neuroendocrine Tumors Using Targeted Deep Sequencing2017Inngår i: Anticancer Research, ISSN 0250-7005, E-ISSN 1791-7530, Vol. 37, nr 2, s. 705-712Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Mutations affecting the mechanistic target of rapamycin (MTOR) signalling pathway are frequent in human cancer and have been identified in up to 15% of pancreatic neuroendocrine tumours (NETs). Grade A evidence supports the efficacy of MTOR inhibition with everolimus in pancreatic NETs. Although a significant proportion of patients experience disease stabilization, only a minority will show objective tumour responses. It has been proposed that genomic mutations resulting in activation of MTOR signalling could be used to predict sensitivity to everolimus.

    PATIENTS AND METHODS: Patients with NETs that underwent treatment with everolimus at our Institution were identified and those with available tumour tissue were selected for further analysis. Targeted next-generation sequencing (NGS) was used to re-sequence 22 genes that were selected on the basis of documented involvement in the MTOR signalling pathway or in the tumourigenesis of gastroenterpancreatic NETs. Radiological responses were documented using Response Evaluation Criteria in Solid Tumours.

    RESULTS: Six patients were identified, one had a partial response and four had stable disease. Sequencing of tumour tissue resulted in a median sequence depth of 667.1 (range=404-1301) with 1-fold coverage of 95.9-96.5% and 10-fold coverage of 87.6-92.2%. A total of 494 genetic variants were discovered, four of which were identified as pathogenic. All pathogenic variants were validated using Sanger sequencing and were found exclusively in menin 1 (MEN1) and death domain associated protein (DAXX) genes. No mutations in the MTOR pathway-related genes were observed.

    CONCLUSION: Targeted NGS is a feasible method with high diagnostic yield for genetic characterization of pancreatic NETs. A potential association between mutations in NETs and response to everolimus should be investigated by future studies.

  • 11. Barbolosi, Dominique
    et al.
    Crona, Joakim
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Serre, Raphaël
    Pacak, Karel
    Taieb, David
    Mathematical modeling of disease dynamics in SDHB- and SDHD-related paraganglioma: Further step in understanding hereditary tumor differences and future therapeutic strategies.2018Inngår i: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 13, nr 8, artikkel-id e0201303Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Succinate dehydrogenase subunit B and D (SDHB and SDHD) mutations represent the most frequent cause of hereditary pheochromocytoma and paraganglioma (PPGL). Although truncation of the succinate dehydrogenase complex is thought to be the disease causing mechanism in both disorders, SDHB and SDHD patients exihibit different phenotypes. These phenotypic differences are currently unexplained by molecular genetics. The aim of this study is to compare disease dynamics in these two conditions via a Markov chain model based on 4 clinically-defined steady states. Our model corroborates at the population level phenotypic observations in SDHB and SDHD carriers and suggests potential explanations associated with the probabilities of disease maintenance and regression. In SDHB-related syndrome, PPGL maintenance seems to be reduced compared to SDHD (p = 0.04 vs 0.95) due to higher probability of tumor cell regression in SDHB vs SDHD (p = 0.87 vs 0.00). However, when SDHB-tumors give rise to metastases, metastatic cells are able to thrive with decreased probability of regression compared with SDHD counterparts (p = 0.17 vs 0.89). By constrast, almost all SDHD patients develop PGL (mainly head and neck) that persist throughout their lifetime. However, compared to SDHB, maintenance of metastatic lesions seems to be less effective for SDHD (p = 0.83 vs 0.11). These findings align with data suggesting that SDHD-related PPGL require less genetic events for tumor initiation and maintenance compared to those related to SDHB, but fail to initiate biology that promotes metastatic spread and metastatic cell survival in host tissues. By contrast, the higher number of genetic abnormalities required for tumor initiation and maintenance in SDHB PPGL result in a lower penetrance of PGL, but when cells give rise to metastases they are assumed to be better adapted to sustain survival. These proposed differences in disease progression dynamics between SDHB and SDHD diseases provide new cues for future exploration of SDHx PPGL behavior, offering considerations for future specific therapeutic and prevention strategies.

  • 12.
    Barbu, Andreea
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk cellbiologi. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Johansson, Åsa
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk cellbiologi.
    Bodin, Bbirgitta
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk cellbiologi.
    Källskog, Örjan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk cellbiologi.
    Carlsson, Per-Ola
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk cellbiologi. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin diabetes och metabolism.
    Sandberg, Monica
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk cellbiologi.
    Börjesson, Joey Lau
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk cellbiologi.
    Jansson, Leif
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk cellbiologi.
    Blood flow in endogenous and transplanted pancreatic islets in anesthetized rats: Effects of lactate and pyruvate2012Inngår i: Pancreas, ISSN 0885-3177, E-ISSN 1536-4828, Vol. 41, nr 8, s. 1263-1271Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    OBJECTIVE: The objective of this study was to evaluate the effects of exogenously administered lactate and pyruvate on blood perfusion in endogenous and transplanted islets. METHODS: Anesthetized Wistar-Furth rats were given lactate or pyruvate intravenously, and regional blood perfusion was studied 3 or 30 minutes later with a microsphere technique. Separate rats received a 30-minute infusion of pyruvate or lactate into the portal vein before blood flow measurements. We also administered these substances to islet-implanted rats 4 weeks after transplantation and measured graft blood flow with laser Doppler flowmetry. The expression of monocarboxylate transporter 1 and lactate dehydrogenase A was analyzed. RESULTS: The expression of monocarboxylate transporter 1 and lactate dehydrogenase A was markedly up-regulated in transplanted as compared with endogenous islets. Administration of pyruvate, but not lactate, increased mesenteric blood flow after 3 minutes. Pyruvate decreased mesenteric blood flow after 30 minutes, whereas lactate decreased only islet blood flow. These responses were absent in transplanted animals. A continuous intraportal infusion of lactate or pyruvate increased selectively islet blood flow but did not affect blood perfusion of transplanted islets. CONCLUSIONS: Lactate and pyruvate affect islet blood flow through effects mediated by interactions between the liver and the nervous system. Such a response can help adjust the release of islet hormones during excess substrate concentrations.

  • 13.
    Barbu, Andreea
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk cellbiologi.
    Lejonklou, Margareta H
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Arbets- och miljömedicin.
    Skogseid, Britt
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Progranulin Stimulates Proliferation of Mouse Pancreatic Islet Cells and Is Overexpressed in the Endocrine Pancreatic Tissue of an MEN1 Mouse Model2016Inngår i: Pancreas, ISSN 0885-3177, E-ISSN 1536-4828, Vol. 45, nr 4, s. 533-540Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    OBJECTIVES: Progranulin (PGRN) promotes cell growth and cell cycle progression in several cell types and contributes to tumorigenesis in diverse cancers. We have recently reported PGRN expression in islets and tumors developed in an MEN1 transgenic mouse. Here we sought to investigate PGRN expression and regulation after exposure to hypoxia as well as its effects on pancreatic islet cells and neuroendocrine tumors (NETs) in MEN1 mice.

    METHODS: Gene and protein expression were analyzed by quantitative polymerase chain reaction, immunohistochemistry, and Western blot. We also investigated PGRN expression in samples from patients carrying pancreatic NETs associated or not with the multiple endocrine neoplasia 1 syndrome, using enzyme-linked immunosorbent assay and immunohistochemistry analysis.

    RESULTS: Progranulin is upregulated in tumors and islets of the MEN1 mouse as well as in the serum of patients with pancreatic NETs associated with glucagonoma syndrome. In normal mice islets and pancreatic tumors, PGRN expression was strongly potentiated by hypoxia. Progranulin promotes cell proliferation in islet cells and βTC-6 cells, a process paralleled by activation of the mitogen-activated protein kinase signaling cascade.

    CONCLUSIONS: Our findings identify PGRN as an effective inducer of pancreatic islet cell proliferation and a possible important factor for pancreatic endocrine tumor development.

  • 14.
    Bergström, Mats
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Farmaceutiska fakulteten, Institutionen för farmaceutisk biovetenskap.
    Monazzam, Azita
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för onkologi, radiologi och klinisk immunologi, Enheten för onkologi. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Razifar, Pasha
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Centrum för bildanalys. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Datoriserad bildanalys.
    Ide, Susan
    Josephsson, Raymond
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper.
    Långström, Bengt
    Modeling spheroid growth, PET tracer uptake, and treatment effects of the Hsp90 inhibitor NVP-AUY9222008Inngår i: Journal of Nuclear Medicine, ISSN 0161-5505, E-ISSN 1535-5667, Vol. 49, nr 7, s. 1204-1210Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    For a PET agent to be successful as a biomarker in early clinical trials of new anticancer agents, some conditions need to be fulfilled: the selected tracer should show a response that is related to the antitumoral effects, the quantitative value of this response should be interpretable to the antitumoral action, and the timing of the PET scan should be optimized to action of the drug. These conditions are not necessarily known at the start of a drug-development program and need to be explored. We proposed a translational imaging activity in which experiments in spheroids and later in xenografts are coupled to modeling of growth inhibition and to the related changes in the kinetics of PET tracers and other biomarkers. In addition, we demonstrated how this information can be used for planning clinical trials. Methods: The first part of this concept is illustrated in a spheroid model with BT474 breast cancer cells treated with the heat shock protein 90 (Hsp90) inhibitor NVP-AUY922. The growth-inhibitory effect after a pulse treatment with the drug was measured with digital image analysis to determine effects on volume with high accuracy. The growth-inhibitory effect was described mathematically by a combined E-max and time course model fitted to the data. The model was then used to simulate a once-per-week treatment, in these experiments the uptake of the PET tracers F-18-FDG and 3'-deoxy-3'-F-18-fluorothymidine (F-18-FLT) was determined at different doses and different time points. Results: A drug exposure of 2 h followed by washout of the drug from the culture medium generated growth inhibition that was maximal at the earliest time point of 1 d and decreased exponentially with time during 10-12 d. The uptake of F-18-FDG per viable tumor volume was minimally affected by the treatment, whereas the F-18-FLT uptake decreased in correlation with the growth inhibition. Conclusion: The study suggests a prolonged action of the Hsp90 inhibitor that supports a once-per-week schedule. F-18-FLT is a suitable tracer for the monitoring of effect, and the F-18-FLT PET study might be performed within 3 d after dosing.

  • 15.
    Bergström, Mats
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Sörensen, Jens
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för radiologi, onkologi och strålningsvetenskap, Enheten för nuklearmedicin och PET.
    Khan, Tanweera Shaheena
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper.
    Juhlin, Claes
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Eriksson, Barbro
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Sundin, Anders
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för radiologi, onkologi och strålningsvetenskap, Enheten för radiologi. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för radiologi, onkologi och strålningsvetenskap, Enheten för nuklearmedicin och PET.
    Bonasera, T.A.
    Fasth, K.-J.
    Långström, Bengt
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för radiologi, onkologi och strålningsvetenskap, Enheten för nuklearmedicin och PET.
    PET with [11C]-Metomidate for the Visualization of Adrenocortical Tumors and Discrimination from Other Lesions1999Inngår i: Clinical Positron Imaging, ISSN 1095-0397, E-ISSN 1878-5751, Vol. 2, nr 6, s. 339-Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Purpose:

    The purpose of the study was to evaluate the potential role of PET with the adrenocortical-specific tracer 11C-metomidate in the characterization of incidentally found adrenal cortical lesions and in adrenocortical carcinomas.

    Methods:

    PET with 11C-metomidate was performed in 15 patients with unilateral adrenal mass confirmed by CT (incidentalomas) and in 9 additional patients with adrenocortical cancer. All incidentalomas subsequently underwent surgery, except 2 subjected to biopsy only. These lesions were histopathologically examined and diagnosed as adrenal cortical adenoma (n = 6; 3 nonfunctioning), adrenocortical carcinoma (n = 2) and nodular hyperplasia (n = 1). The remaining were non-cortical lesions including 1 pheochromocytoma, 1 myelolipoma, 2 adrenal cysts, and 2 metastases.

    Results:

    All lesions, except 1, with an adrenocortical origin were easily identified due to exceedingly high uptake of 11C-metomidate, whereas the non-cortical lesions showed very low uptake. The 1 false negative was a cancer that at surgery was found to be extensively necrotic. High uptake was also seen in normal adrenal glands. The tracer uptake kinetics indicated trapping of the tracer in the cortical lesions. For quantitative evaluation of tracer binding in individual lesions, the simple SUV concept was found to be equally accurate as more elaborate kinetic analyses.

    Conclusion:

    The patients presented and altogether over 40 PET investigations have demonstrated 11C-metomidate to be an attractive tracer for the characterization of adrenal masses with the ability to discriminate lesions of adrenal cortical origin from non-cortical lesions. Additionally the method allows the assessment of metastases from adrenocortical cancers, and the very high contrast has allowed partial whole-body examinations.

  • 16.
    Blom, Elisabeth
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för biokemi och organisk kemi.
    Velikyan, Irina
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för radiologi, onkologi och strålningsvetenskap, Enheten för biomedicinsk strålningsvetenskap.
    Monazzam, Azita
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Razifar, Pasha
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Centrum för bildanalys. Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Institutionen för informationsteknologi, Bildanalys och människa-datorinteraktion.
    Nair, Manoj
    Razifar, Payam
    Vanderheyden, Jean-Luc
    Krivoshein, Arcadius V.
    Backer, Marina
    Backer, Joseph
    Långström, Bengt
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för biokemi och organisk kemi.
    Synthesis and characterization of scVEGF-PEG-[68Ga]NOTA and scVEGF-PEG-[68Ga]DOTA PET tracers2011Inngår i: Journal of labelled compounds & radiopharmaceuticals, ISSN 0362-4803, E-ISSN 1099-1344, Vol. 54, nr 11, s. 685-692Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Vascular endothelial growth factor (VEGF) signaling via vascular endothelial growth factor receptor 2 (VEGFR-2) on tumor endothelial cells is a critical driver of tumor angiogenesis. Novel anti-angiogenic drugs target VEGF/VEGFR-2 signaling and induce changes in VEGFR-2 prevalence. To monitor VEGFR-2 prevalence in the course of treatment, we are evaluating (68)Ga positron emission tomography imaging agents based on macrocyclic chelators, site-specifically conjugated via polyethylene glycol (PEG) linkers to engineered VEGFR-2 ligand, single-chain (sc) VEGF. The (68)Ga-labeling was performed at room temperature with NOTA (2,2', 2 ''-(1,4,7-triazonane-1,4,7-triyl) triacetic acid) conjugates or at 90 degrees C by using either conventional or microwave heating with NOTA and DOTA (2,2', 2 '', 2'''-(1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrayl) tetraacetic acid) conjugates. The fastest (similar to 2min) and the highest incorporation (>90%) of (68)Ga into conjugate that resulted in the highest specific radioactivity (similar to 400MBq/nmol) was obtained with microwave heating of the conjugates. The bioactivity of the NOTA-and DOTA-containing tracers was validated in 3-D tissue culture model of 293/KDR cells engineered to express high levels of VEGFR-2. The NOTA-containing tracer also displayed a rapid accumulation (similar to 20s after intravenous injection) to steady-state level in xenograft tumor models. A combination of high specific radioactivity and maintenance of functional activity suggests that scVEGF-PEG-[(68)Ga] NOTA and scVEGF-PEG-[(68)Ga] DOTA might be promising tracers for monitoring VEGFR-2 prevalence and should be further explored.

  • 17.
    Carlbom, Lina
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Radiologi.
    Caballero-Corbalán, José
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Transplantation och regenerativ medicin.
    Granberg, Dan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper.
    Sörensen, Jens
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Radiologi.
    Eriksson, Barbro
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Ahlström, Håkan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Radiologi.
    Whole-body MRI including diffusion-weighted MRI compared with 5-HTP PET/CT in the detection of neuroendocrine tumors2017Inngår i: Upsala Journal of Medical Sciences, ISSN 0300-9734, E-ISSN 2000-1967, Vol. 122, nr 1, s. 43-50Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    AIM: We wanted to explore if whole-body magnetic resonance imaging (MRI) including diffusion-weighted (DW) and liver-specific contrast agent-enhanced imaging could be valuable in lesion detection of neuroendocrine tumors (NET). [11C]-5-Hydroxytryptophan positron emission tomography/computed tomography (5-HTP PET/CT) was used for comparison.

    MATERIALS AND METHODS: Twenty-one patients with NET were investigated with whole-body MRI, including DW imaging (DWI) and contrast-enhanced imaging of the liver, and whole-body 5-HTP PET/CT. Seven additional patients underwent upper abdomen MRI including DWI, liver-specific contrast agent-enhanced imaging, and 5-HTP PET/CT.

    RESULTS: There was a patient-based concordance of 61% and a lesion-based concordance of 53% between the modalities. MRI showed good concordance with PET in detecting bone metastases but was less sensitive in detecting metastases in mediastinal lymph nodes. MRI detected more liver metastases than 5-HTP PET/CT.

    CONCLUSION: Whole-body MRI with DWI did not detect all NET lesions found with whole-body 5-HTP PET/CT. Our findings indicate that MRI of the liver including liver-specific contrast agent-enhanced imaging and DWI could be a useful complement to whole-body 5-HTP PET/CT.

  • 18.
    Carling, Tobias
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Medicin. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Rastad, Jonas
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Medicin.
    Ridefelt, Peter
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Medicin. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Gobl, Anders
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Medicin. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Hellman, Per
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Medicin. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Öberg, Kjell
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Medicin. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Rask, Lars
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Medicin. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Larsson, Catharina
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Medicin. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper.
    Juhlin, Claes
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Medicin.
    Åkerström, Göran
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Medicin.
    Skogseid, Britt
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Hyperparathyroidism of multiple endocrine neoplasia type 1: candidate gene and parathyroid calcium sensing protein expression1995Inngår i: Surgery, ISSN 0039-6060, E-ISSN 1532-7361, Vol. 118, nr 6, s. 924-931Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND:

    Hyperparathyroidism affects most patients with multiple endocrine neoplasia type 1 (MEN 1). This study investigates expression of the candidate MEN1 gene phospholipase C beta 3 (PLC beta 3) and expression and function of a putative calcium sensing protein (CAS) in hyperparathyroidism of MEN 1.

    METHODS:

    In 31 parathyroid glands from 17 patients with MEN 1, CAS distribution was studied immunohistochemically and parallel sections were explored for PLC beta 3 mRNA expression by in situ hybridization. Enzymatically dispersed parathyroid cells were analyzed for cytoplasmic calcium concentrations [Ca2+]i and parathyroid hormone (PTH) release.

    RESULTS:

    All glands exhibited a heterogeneously reduced CAS immunoreactivity, especially meager in nodularly assembled parathyroid cells. Calcium regulated [Ca2+]i and PTH release tended to be more deranged in the glands possessing the lowest immunostaining. Parathyroid PLC beta 3 invariably was homogeneously expressed, and this included even MEN 1 patients with reduced PLC beta 3 expression in endocrine pancreatic tumors.

    CONCLUSIONS:

    The findings support variable calcium insensitivity of [Ca2+]i and PTH release in hyperparathyroidism of MEN 1, apparently coupled to heterogeneously reduced CAS expression. For clarification of the role of PLC beta 3 in MEN 1 parathyroid tumorigenesis further study of this protein is required.

  • 19.
    Chu, Xia
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Gao, Xiang
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk cellbiologi.
    Jansson, Leif
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk cellbiologi.
    Quach, My
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk cellbiologi.
    Skogseid, Britt
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Barbu, Andreea
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Multiple Microvascular Alterations in Pancreatic Islets and Neuroendocrine Tumors of a Men1 Mouse Model2013Inngår i: American Journal of Pathology, ISSN 0002-9440, E-ISSN 1525-2191, Vol. 182, nr 6, s. 2355-2367Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Vascular therapeutic targeting requires thorough evaluation of the mechanisms activated in the specific context of each particular tumor type. We highlight structural, molecular, and functional microvascular aberrations contributing to development and maintenance of pancreatic neuroendocrine tumors (NETs), with special reference to multiple endocrine neoplasia 1 (MEN1) syndrome, using a Men1 mouse model. Tissue samples were analyzed by immunofluorescence to detect vessel density and pericyte distribution within the endocrine pancreas; expression of angiogenic factors was assessed by immunohistochemistry and quantitative real-time PCR in isolated islets and adenomas cultured under normoxic or hypoxic conditions. The increased vascular density of pancreatic NETs developed in Men1 mice was paralleled by an early and extensive redistribution of pericytes within endocrine tissue. These morphological alterations are supported by, and in some cases preceded by, fine-tuned variations in expression of several angiogenic regulators and are further potentiated by hypoxia. By combining two novel ex vivo and in vivo single-islet and tumor perfusion techniques, we demonstrated that both vascular reactivity and blood perfusion of tumor arterioles are significantly altered in response to glucose and L-nitro-arginine methyl ester. Our findings unravel multiple potential molecular and physiological targets differentially activated in the endocrine pancreas of Men1 mice and highlight the need for in-depth functional studies to fully understand the contribution of each component to development of pancreatic NETs in MEN1 syndrome.

  • 20.
    Chu, Xia
    et al.
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper.
    Monazzan, Azita
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Razmara, Masoud
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Stålberg, Peter
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Skogseid, Britt
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi. Uppsala universitet, Science for Life Laboratory, SciLifeLab.
    Quantitative Protein Profiling of Adrenal Glands in a Men1 Mouse ModelManuskript (preprint) (Annet vitenskapelig)
  • 21.
    Clewemar, Pantelis
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Hailer, Nils P.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Ortopedi.
    Hailer, Yasmin
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Ortopedi.
    Klar, Joakim
    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.
    Kindmark, Andreas
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrinologi och mineralmetabolism.
    Ljunggren, Östen
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrinologi och mineralmetabolism.
    Stattin, Eva-Lena
    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.
    Expanding the phenotypic spectrum of osteogenesis imperfecta type V including heterotopic ossification of muscle origins and attachments2019Inngår i: Molecular Genetics & Genomic Medicine, ISSN 2324-9269, Vol. 7, nr 7, artikkel-id e00723Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background

    Osteogenesis imperfecta (OI) is a clinical and genetic heterogeneous group of connective tissue disorders, characterized by bone fragility and a propensity to fracture.

    Methods

    In this report we describe the clinical phenotype of two patients, a 28‐year‐old woman and her mother (54 years old), both with a history of short stature and multiple fractures.

    Results

    Exome sequencing revealed the recurring IFITM5:c.‐14 C>T variant causing OI type V. Both patients had several fractures during childhood. CT‐scan and scintigraphy showed ossification of the origin and attachment of muscles and hypertrophic callus formation.

    Conclusion

    Ossification of the origin and attachment of muscles seems to be part of the phenotype in patients with OI type V.

  • 22.
    Crona, Joakim
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi. Eunice Kennedy Shriver Natl Inst Child Hlth & Hum, Sect Med Neuroendocrinol, NIH, 10 Ctr Dr,Bldg 10,Room 1E-3140, Bethesda, MD 20892 USA.
    Backman, Samuel
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Experimentell kirurgi.
    Welin, Staffan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Onkologisk endokrinologi.
    Taieb, David
    Aix Marseille Univ, Dept Nucl Med, La Timone Univ Hosp, European Ctr Res Med Imaging, F-13385 Marseille, France.
    Hellman, Per
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Experimentell kirurgi.
    Stålberg, Peter
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Skogseid, Britt
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Pacak, Karel
    Eunice Kennedy Shriver Natl Inst Child Hlth & Hum, Sect Med Neuroendocrinol, NIH, 10 Ctr Dr,Bldg 10,Room 1E-3140, Bethesda, MD 20892 USA.
    RNA-Sequencing Analysis of Adrenocortical Carcinoma, Pheochromocytoma and Paraganglioma from a Pan-Cancer Perspective2018Inngår i: Cancers, ISSN 2072-6694, Vol. 10, nr 12, artikkel-id 518Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Adrenocortical carcinoma (ACC) and pheochromocytoma and paraganglioma (PPGL) are defined by clinicopathological criteria and can be further sub-divided based on different molecular features. Whether differences between these molecular subgroups are significant enough to re-challenge their current clinicopathological classification is currently unknown. It is also not fully understood to which other cancers ACC and PPGL show similarity to. To address these questions, we included recent RNA-Seq data from the Cancer Genome Atlas (TCGA) and Therapeutically Applicable Research to Generate Effective Treatments (TARGET) datasets. Two bioinformatics pipelines were used for unsupervised clustering and principal components analysis. Results were validated using consensus clustering model and interpreted according to previous pan-cancer experiments. Two datasets consisting of 3319 tumors from 35 disease categories were studied. Consistent with the current classification, ACCs clustered as a homogenous group in a pan-cancer context. It also clustered close to neural crest derived tumors, including gliomas, neuroblastomas, pancreatic neuroendocrine tumors, and PPGLs. Contrary, some PPGLs mixed with pancreatic neuroendocrine tumors or neuroblastomas. Thus, our unbiased gene-expression analysis of PPGL did not overlap with their current clinicopathological classification. These results emphasize some importances of the shared embryological origin of these tumors, all either related or close to neural crest tumors, and opens for investigation of a complementary categorization based on gene-expression features.

  • 23.
    Crona, Joakim
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Beuschlein, F.
    Klinikum der Universität München, Medizinische Klinik und Poliklinik IV, Munich, Germany; UniversitätsSpital Zürich, Klinik für Endokrinologie, Diabetologie und Klinische Ernährung, Zürich, Switzerland.
    Pacak, K.
    Eunice Kennedy Shriver National Institute of Child Health & Human Development, Section on Medical Neuroendocrinology, National Institutes of Health, Bethesda, Maryland, USA.
    Skogseid, Britt
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Advances in adrenal tumors 20182018Inngår i: Endocrine-Related Cancer, ISSN 1351-0088, E-ISSN 1479-6821, Vol. 25, nr 7, s. R405-R420Artikkel, forskningsoversikt (Fagfellevurdert)
    Abstract [en]

    This review aims to provide clinicians and researchers with a condensed update on the most important studies in the field during 2017. We present the academic output measured by active clinical trials and peer-reviewed published manuscripts. The most important and contributory manuscripts were summarized for each diagnostic entity, with a particular focus on manuscripts that describe translational research that have the potential to improve clinical care. Finally, we highlight the importance of collaborations in adrenal tumor research, which allowed for these recent advances and provide structures for future success in this scientific field.

  • 24.
    Crona, Joakim
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Beuschlein, Felix
    Klinikum Univ Munchen, Med Klin & Poliklin 4, Munich, Germany;Univ Spital Zurich, Klin Endokrinol Diabetol & Klin Ernahrung, Zurich, Switzerland.
    Adrenocortical carcinoma: towards genomics guided clinical care2019Inngår i: Nature Reviews Endocrinology, ISSN 1759-5029, E-ISSN 1759-5037, Vol. 15, nr 9, s. 548-560Artikkel, forskningsoversikt (Fagfellevurdert)
    Abstract [en]

    Adrenocortical carcinoma (ACC) is an aggressive and rare neoplasm that originates in the cortex of the adrenal gland. The disease is associated with heterogeneous but mostly poor outcomes and lacks effective pharmaceutical treatment options. Multi-omics studies have defined the landscape of molecular alterations in ACC. Specific molecular signatures can be detected in body fluids, potentially enabling improved diagnostic applications for patients with adrenal tumours. Importantly, pan-molecular data sets further reveal a spectrum within ACC, with three major subgroups that have different disease outcomes. These new subgroups have value as prognostic biomarkers. Research has revealed that the p53-RB and the WNT-beta-catenin pathways are common disease drivers in ACC. However, these pathways remain difficult to target by therapeutic interventions. Instead, a unique characteristic of ACC is steroidogenic differentiation, which has emerged as a potential treatment target, with several agents undergoing preclinical or clinical investigations. Finally, a large proportion of ACC tumours have genetic profiles that are associated with promising therapeutic responsiveness in other cancers. All these opportunities now await translation from the laboratory into the clinical setting, thereby offering a real potential of improved survival outcomes and increased quality of life for patients with this serious condition.

  • 25.
    Crona, Joakim
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Experimentell kirurgi.
    Eriksson, Barbro
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Welin, Staffan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper.
    Secondary Hormonal Syndromes in Patients with Sporadic Neuroendocrine Tumors2014Inngår i: Neuroendocrinology, ISSN 0028-3835, E-ISSN 1423-0194, Vol. 99, nr 3-4, s. 240-240Artikkel i tidsskrift (Annet vitenskapelig)
  • 26.
    Crona, Joakim
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Experimentell kirurgi.
    Fanola, Irina
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för radiologi, onkologi och strålningsvetenskap, Enheten för radiologi.
    Lindholm, Daniel P.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Kardiologi.
    Antonodimitrakis, Pantelis
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Öberg, Kjell
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Onkologisk endokrinologi.
    Eriksson, Barbro
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Granberg, Dan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Onkologisk endokrinologi.
    Effect of Temozolomide in Patients with Metastatic Bronchial Carcinoids2013Inngår i: Neuroendocrinology, ISSN 0028-3835, E-ISSN 1423-0194, Vol. 98, nr 2, s. 151-155Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Introduction: Metastatic bronchial carcinoids are rare neoplasms, where efforts of medical treatment so far have been disappointing. A previous study from our center indicated that temozolomide might be of value. Materials and Methods: All patients with progressive metastatic bronchial carcinoid treated with tennozolomide as monotherapy at our center between 2004 and 2010 (n = 31) were included in this retrospective study. 14 tumors were classified as typical and 15 as atypical carcinoids, whereas 2 tumors could not be classified. Temozolomide was given on 5 consecutive days every 4 weeks. Toxicity was evaluable in 28 of 31 patients, and 22 patients were evaluable by RECIST 1.1. Results: There were no complete responses. A partial response was seen in 3 patients (14%), stable disease in 11(52%) and progressive disease in 7 patients (33%). Median progression-free survival was 5.3 months and median overall survival was 23.2 months from the start of temozolomide. Toxcities grade 3-4 were noted in 4 patients, thrombocytopenia (n =3) and leukopenia (n = 1). Conclusion: Temozolomide as monotherapy shows activity in metastatic bronchial carcinoids. Regimens combining tennozolomide with other agents (e.g. capecitabine and/or bevacizumab, everolimus, radiolabeled somatostatin analogues) should be further studied in these patients. Copyright (C) 2013 S. Karger AG, Basel

  • 27.
    Crona, Joakim
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Lamarca, A.
    Christie NHS Fdn Trust, Dept Med Oncol, Manchester, Lancs, England.
    Ronot, M.
    Beujon Univ Hosp, Dept Radiol, Clichy, France.
    Opalinska, M.
    Univ Hosp, Dept Endocrinol, Nucl Med Unit, Krakow, Poland.
    Lopez Lopez, C.
    Hosp Univ Marques de Valdecilla, Dept Med Oncol, Santander, Spain.
    Pezzutti, D.
    Israelita Albert Einstein Hosp, Dept Radiol, Sao Paulo, Brazil.
    Vidal Trueba, H.
    Hosp Univ Marques de Valdecilla, Dept Radiol, Santander, Spain.
    Carvhalo, L.
    Sirio Libanes Hosp, Dept Med Oncol, Sao Paulo, Brazil.
    de Mestier, L.
    Beujon Univ Hosp, Dept Gastroenterol, Clichy, France.
    Najran, P.
    Christie NHS Fdn Trust, Dept Radiol, Manchester, Lancs, England.
    Pavel, M.
    Univ Klinikum Erlangen, Dept Endocrinol, Erlangen, Germany.
    Dromain, C.
    CHUV Univ Hosp, Dept Radiol, Lausanne, Switzerland.
    Pre-Treatment Tumor Growth Rate (TGR0) in Patients Diagnosed with Well-Differentiated Neuroendocrine Tumors (NETs) Treated with Systemic Therapies: Subgroup Analysis of the GREPONET Study2018Inngår i: Neuroendocrinology, ISSN 0028-3835, E-ISSN 1423-0194, Vol. 106, nr Supplement: 1, s. 171-171Artikkel i tidsskrift (Annet vitenskapelig)
  • 28.
    Crona, Joakim
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi. Eunice Kennedy Shriver Natl Inst Child Hlth & Hum, Sect Med Neuroendocrinol, NIH, Bethesda, MD 20892 USA.
    Lamarca, Angela
    Christie NHS Fdn Trust, Dept Med Oncol, ENETS Ctr Excellence, Manchester, Lancs, England.
    Ghosal, Suman
    Eunice Kennedy Shriver Natl Inst Child Hlth & Hum, Sect Med Neuroendocrinol, NIH, Bethesda, MD 20892 USA.
    Welin, Staffan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Onkologisk endokrinologi.
    Skogseid, Britt
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Pacak, Karel
    Eunice Kennedy Shriver Natl Inst Child Hlth & Hum, Sect Med Neuroendocrinol, NIH, Bethesda, MD 20892 USA.
    Genotype-phenotype correlations in pheochromocytoma and paraganglioma: a systematic review and individual patient meta-analysis2019Inngår i: Endocrine-Related Cancer, ISSN 1351-0088, E-ISSN 1479-6821, Vol. 26, nr 5, s. 539-550Artikkel, forskningsoversikt (Fagfellevurdert)
    Abstract [en]

    Pheochromocytoma and paraganglioma (PPGL) can be divided into at least four molecular subgroups. Whether such categorizations are independent factors for prognosis or metastatic disease is unknown. We performed a systematic review and individual patient meta-analysis aiming to estimate if driver mutation status can predict metastatic disease and survival. Driver mutations were used to categorize patients according to three different molecular systems: two subgroups (SDHB mutated or wild type), three subgroups (pseudohypoxia, kinase signaling or Wnt/unknown) and four subgroups (tricarboxylic acid cycle, VHL/EPAS1, kinase signaling or Wnt/unknown). Twenty-one studies and 703 patients were analyzed. Multivariate models for association with metastasis showed correlation with SDHB mutation (OR 5.68 (95% CI 1.79-18.06)) as well as norepinephrine (OR 3.01 (95% CI 1.02-8.79)) and dopa mine (OR 6.39 (95% CI 1.62-25.24)) but not to PPGL location. Other molecular systems were not associated with metastasis. In multivariate models for association with survival, age (HR 1.04 (95% CI 1.02-1.06)) and metastases (HR 6.13 (95% CI 2.86-13.13)) but neither paraganglioma nor SDHB mutation remained significant. Other molecular subgroups did not correlate with survival. We conclude that molecular categorization accordingly to SDHB provided independent information on the risk of metastasis. Driver mutations status did not correlate independently with survival. These data may ultimately be used to guide current and future risk stratification of PPGL.

  • 29.
    Crona, Joakim
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Norlén, Olov
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Antonodimitrakis, Pantelis
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Welin, Staffan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Onkologisk endokrinologi.
    Stålberg, Peter
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Eriksson, Barbro
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Multiple and Secondary Hormone Secretion in Patients With Metastatic Pancreatic Neuroendocrine Tumors2017Inngår i: Pancreas, ISSN 0885-3177, E-ISSN 1536-4828, Vol. 46, nr 3, s. 441-441Artikkel i tidsskrift (Annet vitenskapelig)
  • 30.
    Crona, Joakim
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Experimentell kirurgi.
    Norlén, Olov
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Antonodimitrakis, Pantelis
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Welin, Staffan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin Onkologi.
    Stålberg, Peter
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Eriksson, Barbro
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin Onkologi.
    Multiple and Secondary Hormone Secretion in Patients With Metastatic Pancreatic Neuroendocrine Tumours2016Inngår i: Journal of Clinical Endocrinology and Metabolism, ISSN 0021-972X, E-ISSN 1945-7197, Vol. 101, nr 2, s. 445-452Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    CONTEXT:

    As a group, neuroendocrine tumors (NETs) secrete many different peptide hormones, yet heretofore each NET patient is typically thought to produce at most one hormone that causes a distinct hormonal syndrome. A minority of patients have multiple hormones at diagnosis and may also develop secondary hormone secretion at a later stage.

    OBJECTIVES:

    The objectives of the study were to determine the frequency and to describe the impact of multiple and secondary hormone secretion in sporadic gasteroenteropancreatic NET patients.

    DESIGN, SETTING, AND PARTICIPANTS:

    This was a retrospective analysis of patients (n = 972) with gasteroenteropancreatic NET treated at Uppsala University Hospital, Uppsala, Sweden. Patients with the secretion of multiple hormones at diagnosis and/or those developing secondary hormone secretion during the disease course were identified and studied in further detail.

    RESULTS:

    In pancreatic NETs (PNETs), a total of 19 of 323 patients (6%) had secretion of multiple hormones at diagnosis, and 14 of 323 (4%) had secondary changes during the disease course. These phenomena occurred exclusively in patients with an advanced disease stage, and secondary hormones were detected in a close time span with progressive disease. Patients with secondary insulin hypersecretion had increased morbidity as well as reduced survival (P < .002). In contrast, multiple and secondary hormone secretion was rarely seen in NETs of the small intestine with 0 and 1 of 603 cases, respectively.

    CONCLUSION:

    Diversity of PNET hormone secretion either at diagnosis or during the disease course occurred in a minority of patients (9.3%). These phenomena had a major impact on patient outcome both through increased morbidity and mortality. Our results support that patients with metastatic PNETs should be monitored for clinical symptoms of secondary hormone secretion during the disease course.

  • 31.
    Crona, Joakim
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Skogseid, Britt
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Genetics of neuroendocrine tumors2016Inngår i: European Journal of Endocrinology, ISSN 0804-4643, E-ISSN 1479-683X, Vol. 174, nr 6, s. R275-R290Artikkel, forskningsoversikt (Fagfellevurdert)
    Abstract [en]

    Neuroendocrine tumors (NETs) are a heterogeneous group of neoplasms, arising from neuroendocrine cells that are dispersed throughout the body. Around 20% of NETs occur in the context of a genetic syndrome. Today there are at least ten recognized NET syndromes. This includes the classical syndromes: multiple endocrine neoplasias types 1 and 2, and von Hippel-Lindau and neurofibromatosis type 1. Additional susceptibility genes associated with a smaller fraction of NETs have also been identified. Recognizing genetic susceptibility has proved essential both to provide genetic counseling and to give the best preventive care. In this review we will also discuss the knowledge of somatic genetic alterations in NETs. At least 24 genes have been implicated as drivers of neuroendocrine tumorigenesis, and the overall rates of genomic instability are relatively low. Genetic intra-tumoral, as well as inter-tumoral heterogeneity in the same patient, have also been identified. Together these data point towards the common pathways in NET evolution, separating early from late disease drivers. Although knowledge of specific mutations in NETs has limited impact on actual patient management, we predict that in the near future genomic profiling of tumors will be included in the clinical arsenal for diagnostics, prognostics and therapeutic decisions.

  • 32.
    Crona, Joakim
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi. Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland.
    Taïeb, David
    Aix Marseille Université, La Timone University Hospital, Department of Nuclear Medicine, European Center for Research in Medical Imaging, Marseille.
    Pacak, Karel
    Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland.
    New Perspectives on Pheochromocytoma and Paraganglioma: Toward a Molecular Classification2017Inngår i: Endocrine reviews, ISSN 0163-769X, E-ISSN 1945-7189, Vol. 38, nr 6, s. 489-515Artikkel, forskningsoversikt (Fagfellevurdert)
    Abstract [en]

    A molecular biology-based taxonomy has been proposed for pheochromocytoma and paraganglioma (PPGL). Data from the Cancer Genome Atlas revealed clinically relevant prognostic and predictive biomarkers and stratified PPGLs into three main clusters. Each subgroup has a distinct molecular-biochemical-imaging signature. Concurrently, new methods for biochemical analysis, functional imaging, and medical therapies have also become available. The research community now strives to match the cluster biomarkers with the best intervention. The concept of precision medicine has been long awaited and holds great promise for improved care. Here, we review the current and future PPGL classifications, with a focus on hereditary syndromes. We discuss the current strengths and shortcomings of precision medicine and suggest a condensed manual for diagnosis and treatment of both adult and pediatric patients with PPGL. Finally, we consider the future direction of this field, with a particular focus on how advanced molecular characterization of PPGL can improve a patient's outcome, including cures and, ultimately, disease prevention.

  • 33.
    Cui, Tao
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Onkologisk endokrinologi.
    Hurtig, Monica
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Elgue, Graciela
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för onkologi, radiologi och klinisk immunologi, Enheten för klinisk immunologi.
    Li, Su-Chen
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Onkologisk endokrinologi.
    Veronesi, Giulia
    Essaghir, Ahmed
    Demoulin, Jean-Baptiste
    Pelosi, Giuseppe
    Alimohammadi, Mohammad
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Autoimmunitet.
    Öberg, Kjell
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Onkologisk endokrinologi.
    Giandomenico, Valeria
    Uppsala universitet, Science for Life Laboratory, SciLifeLab. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Onkologisk endokrinologi.
    Paraneoplastic antigen Ma2 autoantibodies as specific blood biomarkers for detection of early recurrence of small intestine neuroendocrine tumors2010Inngår i: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 5, nr 12, s. e16010-Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background: Small intestine neuroendocrine tumors (SI-NETs) belong to a rare group of cancers. Most patients have developed metastatic disease at the time of diagnosis, for which there is currently no cure. The delay in diagnosis is a major issue in the clinical management of the patients and new markers are urgently needed. We have previously identified paraneoplastic antigen Ma2 (PNMA2) as a novel SI-NET tissue biomarker. Therefore, we evaluated whether Ma2 autoantibodies detection in the blood stream is useful for the clinical diagnosis and recurrence of SI-NETs. Methodology/Principal Findings: A novel indirect ELISA was set up to detect Ma2 autoantibodies in blood samples of patients with SI-NET at different stages of disease. The analysis was extended to include typical and atypical lung carcinoids (TLC and ALC), to evaluate whether Ma2 autoantibodies in the blood stream become a general biomarker for NETs. In total, 124 blood samples of SI-NET patients at different stages of disease were included in the study. The novel Ma2 autoantibody ELISA showed high sensitivity, specificity and accuracy with ROC curve analysis underlying an area between 0.734 and 0.816. Ma2 autoantibodies in the blood from SI-NET patients were verified by western blot and sequential immunoprecipitation. Serum antibodies of patients stain Ma2 in the tumor tissue and neurons. We observed that SI-NET patients expressing Ma2 autoantibody levels below the cutoff had a longer progression and recurrence-free survival compared to those with higher titer. We also detected higher levels of Ma2 autoantibodies in blood samples from TLC and ALC patients than from healthy controls, as previously shown in small cell lung carcinoma samples. Conclusion: Here we show that high Ma2 autoantibody titer in the blood of SI-NET patients is a sensitive and specific biomarker, superior to chromogranin A (CgA) for the risk of recurrence after radical operation of these tumors.

     

  • 34.
    Daskalakis, Kosmas
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi. Univ Athens, Laiko Hosp, Dept Propauped Internal Med 1, Oncol Unit, Athens, Greece.
    Chatzelis, Eleftherios
    Univ Athens, Laiko Hosp, Dept Propauped Internal Med 1, Oncol Unit, Athens, Greece;251 Hellen Air Force & VA Gen Hosp, Athens, Greece.
    Tsoli, Marina
    Univ Athens, Laiko Hosp, Dept Propauped Internal Med 1, Oncol Unit, Athens, Greece.
    Papadopoulou-Marketou, Nektaria
    Linkoping Univ, Div Endocrinol, Dept Med & Hlth Sci, Linkoping, Sweden.
    Dimitriadis, Georgios K.
    Univ Hosp Coventry & Warwickshire NHS Trust, Arden Net CoE & Human Metab Res Unit HMRU, WISDEM, Coventry CV2 2DX, W Midlands, England.
    Tsolakis, Apostolos V.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi. Karolinska Inst, Dept Oncol & Pathol, Stockholm, Sweden;Karolinska Univ Hosp Solna, CCK, R8 04, Stockholm, Sweden.
    Kaltsas, Gregory
    Univ Athens, Laiko Hosp, Dept Propauped Internal Med 1, Oncol Unit, Athens, Greece.
    Endocrine paraneoplastic syndromes in patients with neuroendocrine neoplasms2019Inngår i: Endocrine (Basingstoke), ISSN 1355-008X, E-ISSN 1559-0100, Vol. 64, nr 2, s. 384-392Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Objective: Our aim was to assess the prevalence of endocrine paraneoplastic syndromes (EPNS) in neuroendocrine neoplasms (NENs) and estimate its impact on patient outcomes.

    Design: This is a retrospective analysis of 834 patients with NENs (611 gastrointestinal, 166 thoracic, 57 of unknown and various other primary origin). We included 719 consecutive NEN patients treated at EKPA-Laiko Hospital, Athens, Greece and 115 patients with lung carcinoid (LC) treated at Uppsala University Hospital, Uppsala, Sweden. EPNS diagnosis was based on standard criteria.

    Methods: Twenty-one patients with EPNS were detected: 16 with ectopic Cushing's syndrome (ECS), one with hypercalcaemia due to parathyroid hormone-related protein (PTHrP) secretion, three with hypercalcitonaemia and one patient with dual secretion of calcitonin and beta-human chorionic gonadotropin (-HCG). All tumours were well-differentiated; 10 patients had Stage IV disease at diagnosis.

    Results: The prevalence of EPNS in the Greek cohort was 1.9%, whereas that of ECS among LC patients in both centres was 6.7%. Median overall survival (OS) for patients with EPNS was 160.7 months (95%CI, 86-235.4) and median event-free survival (EFS) was 25.9 months (95%CI, 0-57.2). Patients presenting with EPNS prior to NEN diagnosis had longer EFS compared to patients with synchronous or metachronous EPNS (log-rank P=0.013). Patients with ECS of extra-thoracic origin demonstrated shorter OS and EFS compared to patients with ECS of lung or thymic origin (log-rank P=0.001 and P<0.001, respectively). LC patients with and without ECS were comparable in 5-year and 10-year OS rates (66.7% and 33.3% versus 89.8% and 60.2%, respectively; 95%CI [189.6-300.4 months], log-rank P=0.94) and in median EFS, 67 versus 183 months, 95%CI [50.5-207.5], log-rank P=0.12).

    Conclusion: EPNS are relatively rare in patients with NENs and mainly concern well-differentiated tumours of the foregut. Among patients with EPNS, LC-related ECS may not adversely affect patient outcomes when diagnosed prior to NEN and effectively been treated.

  • 35.
    Daskalakis, Kosmas
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Kaltsas, Gregory
    Univ Athens, Laiko Hosp, Dept Propauped Internal Med 1, Endocrine Oncol Unit, Athens, Greece.
    Öberg, Kjell
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Tsolakis, Apostolos V.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi. Karolinska Inst, Dept Pathol & Oncol, Stockholm, Sweden; Karolinska Univ Hosp, Canc Ctr Karolinska, CCK, Stockholm, Sweden.
    Lung Carcinoids: Long-Term Surgical Results and the Lack of Prognostic Value of Somatostatin Receptors and Other Novel Immunohistochemical Markers2018Inngår i: Neuroendocrinology, ISSN 0028-3835, E-ISSN 1423-0194, Vol. 107, nr 4, s. 355-365Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Background/Aims: Lung carcinoids (LCs) are often diagnosed at an early stage and surgical intervention becomes the next phase of treatment. To date, there is lack of long-term follow-up data after surgery and prognostication based on WHO classification criteria and evolving prognostic markers, particularly the expression of somatostatin receptors (SSR).

    Methods: We included 102 consecutive patients (72 women; age at baseline 51 ± 16 years [mean ± SD]) with LCs, who underwent thoracic surgery (n = 99) and/or laser treatment (n = 8). Hospital charts were reviewed for clinico-pathological parameters. Immunohistochemical (IHC) expression of SSR1–5 and other novel markers were studied with regard to their prognostic value.

    Results: Five- and 10-year overall survival (OS) was 96 and 83% respectively; relative survival (RS) was 101 and 93% respectively; and event-free survival (EFS) was 80 and 67% respectively. Independent prognostic factors for OS, RS and/or EFS were age at diagnosis, histopathological type and the presence of ipsilateral mediastinal subcarinal lymph node metastases. Macro-radicality of resective surgery and its extent were associated with increased OS and EFS. The IHC expression of SSR1–5 and other novel markers was not associated with OS or EFS.

    Conclusion: The long-term outcome of surgically treated patients with LCs is favourable. Age, histopathological type and ipsilateral mediastinal subcarinal lymph node status at baseline were independent prognostic factors for survival and disease recurrence or progression. The extent of surgery and operative macro-radicality also had an impact on prognosis. None of the IHC markers tested appeared to be associated with disease prognosis.

  • 36.
    Daskalakis, Kosmas
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Karakatsanis, Andreas
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Hessman, Ola
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Endokrinkirurgi.
    Stuart, Heather C.
    Division of Surgical Oncology, University of Miami, Florida, USA.
    Welin, Staffan
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Onkologisk endokrinologi.
    Tiensuu Janson, Eva
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Onkologisk endokrinologi.
    Öberg, Kjell
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    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.
    Association of a Prophylactic surgical approach to Stage IV Small Intestinal Neuroendocrine Tumors with Survival.2018Inngår i: JAMA Oncology, ISSN 2374-2437, E-ISSN 2374-2445, Vol. 4, nr 2, s. 183-189Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Importance: Primary tumor resection and mesenteric lymph node dissection in asymptomatic patients with stage IV Small Intestinal Neuroendocrine Tumors (SI-NETs) is controversial.

    Objective:  To determine whether locoregional surgery performed at diagnosis in asymptomatic SI-NETs patients with distant metastases affects overall survival (OS), morbidity and mortality, length of hospital stay (LOS) and re-operation rates.

    Design: This investigation was a cohort study of asymptomatic patients with stage IV SI-NET, diagnosed between 1985 and 2015, using the prospective Uppsala database of SI-NETs and the Swedish National Patient Register. Patients included were followed until May 2016 and divided to a first group, which underwent Prophylactic Upfront Surgery within six months from diagnosis Combined with Oncological treatment (PUSCO group) and a second group, which was either treated non-surgically or operated later (Delayed Surgery As Needed Combined with Oncological treatment [DSANCO group]).

    Setting: A tertiary referral center with follow-up data from the Swedish National Patient Register.

    Participants: We included 363 stage IV SI-NET patients without any abdominal symptoms within 6 months from diagnosis, treated either with PUSCO (n=161) or DSANCO (n=202).

    Exposure: PUSCO vs DSANCO.

    Main Outcomes and Measures: Overall survival (OS), length of hospital stay (LOS), postoperative morbidity and mortality and re-operation rates measured from baseline. Propensity score match was performed between the two groups.

    Results: Two isonumerical groups (n=91) occurred after propensity score matching. There was no difference between groups in OS (PUSCO median 7.9 vs DSANCO 7.6 years; [hazard ratio] HR, 0.98; [95% CI, 0.70-1.37]; log-rank P=.93) and cancer-specific survival (median 7.7 vs 7.6 years, HR, 0.99; [95%CI, 0.71-1.40]; log-rank P=.99). There was no difference in 30-day mortality (0% in both matched groups) or postoperative morbidity (2% vs 1%; P>.99), LOS (median 73 vs 76 days; P=.64), LOS due to local tumor-related symptoms (median 7 vs 11.5 days; P=.81) or incisional hernia repairs (4% in both groups; P>.99).  Patients from the PUSCO group underwent more re-operative procedures (14%) compared to the DSANCO group (3%) due to intestinal obstruction (P< .001).

    Conclusion: Prophylactic upfront locoregional surgery confers no survival advantage in asymptomatic stage IV SI-NET patients. Delayed surgery as needed seems to be comparable in all examined outcomes, whilst offering the advantage of less re-operations for intestinal obstruction.  The value of a priori locoregional surgery in the presence of distant metastases is challenged and needs to be elucidated in a randomized controlled study.

     

  • 37. Demırkan, Binnaz H M
    et al.
    Eriksson, Barbro
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Systemic treatment of neuroendocrine tumors with hepatic metastases2012Inngår i: The Turkish Journal of Gastroenterology, ISSN 1300-4948, Vol. 23, nr 5, s. 427-437Artikkel, forskningsoversikt (Fagfellevurdert)
    Abstract [en]

    Neuroendocrine tumors, 1-2% of all malignancies, are relatively slow-growing neoplasms. The majority of neuroendocrine tumors belong to the World Health Organization Group 2 with well-differentiated endocrine carcinomas, but some tumors can be aggressive. The most common are gastroenteropancreatic-neuroendocrine tumors, followed by bronchopulmonary neuroendocrine tumors; less frequent locations are the ovaries, testis and hepatobiliary locations. They can be either non-functioning tumors with symptoms related to mass effects and malignant tumor disease or functioning tumors with specific hormones/neuropeptides autonomously secreted to induce specific clinical syndromes. Localized neuroendocrine tumors are less frequent than metastatic ones; in fact, up to 75% of patients with small bowel neuroendocrine tumors and 30-85% of pancreatic neuroendocrine tumors present with liver metastases either at the time of diagnosis or during the course of the disease. The predominant metastatic site is the liver, which is the best prognostic marker of survival regardless of the primary site. If surgical resection or interventional therapies of the hepatic tumor burden are not feasible, or if the metastases are not confined to the liver, systemic treatment remains the only option. None of the systemic therapies is liver-specific, but rather acts on all metastatic sites. The lack of prospective studies comparing different treatment modalities in homogeneous cohorts of patients makes the best treatment strategy poorly defined. Standard systemic therapy options are somatostatin analogues (octreotide and lanreotide), interferon-α and chemotherapy. Somatostatin analogues not only control symptoms related to functioning tumors but tumor growth as well. Because of the studies challenging its efficacy, as well as the potential for side effects, the more widespread acceptance of interferon-α in the treatment of metastatic neuroendocrine tumors has been limited. Well-differentiated neuroendocrine tumors do not show high sensitivity to chemotherapy because of their low mitotic rates, high levels of antiapoptotic protein bcl-2 and increased expression of the multi-drug resistant gene. Traditional chemotherapeutic agents are streptozotocin in combination with 5-fluorouracil or doxorubicin, or to some extent dacarbazine. Temozolomide, capecitabine and oxaliplatin, as monoagents or in combination therapy, show efficacy in phase II trials. Patients with poorly differentiated neuroendocrine tumor, regardless of the primary tumor localization, are candidates for cisplatin and etoposide chemotherapy regimen. Peptide receptor radionuclide therapy is reported to be an effective treatment option for patients with good performance status and high somatostatin-receptor scintigraphy uptake as well as without major liver involvement. Basic fibroblast growth factor, vascular endothelial growth factor, platelet-derived growth factor, transforming growth factor alpha and beta, insulin-like growth factor type 1, epidermal growth factor, stem cell factor (c-kit), and corresponding receptors have been shown to be expressed in Neuroendocrine tumors. Current phase II-III clinical trials with molecular-targeted therapies revealed promising agents such as everolimus (RAD001), an oral mTOR inhibitor, and sunitinib malate (SU-11248), an oral multitargeted tyrosine kinase inhibitor against vascular endothelial growth factor receptors, platelet-derived growth factor receptors, c-kit receptors, glial cell linederived neurotrophic factor, and FMS-like tyrosine kinase-3 (Flt 3), which were approved for the treatment of advanced pancreatic neuroendocrine tumors. Ongoing clinical trials with bevacizumab, a humanized monoclonal antibody against vascular endothelial growth factor, will further define the role of angiogenesis inhibitors in advanced intestinal neuroendocrine tumors. Various further novel strategies of targeted therapy and microRNA-regulated pathways in neuroendocrine tumors are under development.

  • 38.
    Diakatou, Evanthia
    et al.
    G Gennimatas Athens Gen Hosp, Dept Pathol, Athens, Greece..
    Alexandraki, Krystallenia I.
    Univ Athens, Dept Pathophysiol, Athens, Greece..
    Tsolakis, Apostolos V.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Kontogeorgos, George
    G Gennimatas Athens Gen Hosp, Dept Pathol, Athens, Greece..
    Chatzellis, Eleftherios
    Univ Athens, Dept Pathophysiol, Athens, Greece..
    Leonti, Anastasia
    Alexandra Hosp, Dept Nucl Med, Athens, Greece..
    Kaltsas, Gregory A.
    Univ Athens, Dept Pathophysiol, Athens, Greece..
    Somatostatin and dopamine receptor expression in neuroendocrine neoplasms: correlation of immunohistochemical findings with somatostatin receptor scintigraphy visual scores2015Inngår i: Clinical Endocrinology, ISSN 0300-0664, E-ISSN 1365-2265, Vol. 83, nr 3, s. 420-428Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    ContextThe expression of somatostatin (sstr1-5) and dopamine (DR) receptors in neuroendocrine neoplasms (NENs) facilitates diagnosis by tumour visualization with somatostatin receptor scintigraphy (SRS) and directs towards specific treatment with peptide receptor radionuclide therapy (PRRT) with radiolabelled somatostatin analogues. ObjectiveTo investigate the co-expression of sstrs, D2R in relation to pre-operative SRSs in NENs. DesignProspective two-centre study. Patients and measurementsWe analysed pre-operative SRS of 60 patients [44 with gastrointestinal (GI) NENs and 16 with lung NENs] and compared SRS results with immunohistochemical (IHC) reactivity for sstr2, sstr3, sstr5 in sample tissues from primary (n=54) and metastatic (n=27) lesions and IHC reactivity for D2R in 23 samples from primary GI-NENs lesions. ResultsSstr2 was the commonest sstr expressed (654%) and was co-expressed with sstr3 and sstr5 in 321% and 247% of the specimens, respectively. In 67 of 81 specimens (827%), there was concordance of sstr2 immunohistochemistry with SRS findings (P<0001). D2R was expressed in only 8 of 23 (348%) GI-NENs while was co-expressed with sstr2 in all cases. SRS grade, as per Krenning scale, was higher in metastatic foci, large-size (>2cm) tumours and GI-NENs, whereas sstr2 intensity was greater in GI compared to lung NENs. SRS grade showed higher correlation with sstr2 (r=06, P<0001) and D2R (r=05, P<0001) IHC intensity scores than tumour size (r=04, P<0001) and sstr3 (r=04, P<0001) intensity score. ConclusionsSstr2 IHC expression and SRS are useful tools for the diagnosis and management of NENs because they display a high concordance. IHC expression of DR2 seems to be of potential clinical significance in GI-NENs tumours.

  • 39.
    Dittrich, Christian
    et al.
    Kaiser Franz Josef Spital, Ctr Oncol & Haematol, Dept Med 3, Vienna, Austria..
    Kosty, Michael
    Scripps Green Canc Ctr, Div Hematol Oncol, Scripps Clin, La Jolla, CA 92037 USA..
    Jezdic, Svetlana
    ESMO, Lugano, Switzerland..
    Pyle, Doug
    ASCO, Alexandria, VA 22314 USA..
    Berardi, Rossana
    Univ Politecn Marche, Osped Riuniti Ancona, Dept Med Oncol, Ancona, Italy..
    Bergh, Jonas
    Karolinska Inst & Univ Hosp, Strateg Res Programme Canc, Stockholm, Sweden..
    El-Saghir, Nagi
    Amer Univ Beirut, Med Ctr, NK Basile Canc Inst, Dept Internal Med, Beirut, Lebanon..
    Lotz, Jean-Pierre
    Tenon Assistance Publ Hopitaux Paris, Dept Med Oncol & Cellular Therapy, Dept Med Oncol, Paris, France..
    Osterlund, Pia
    HUCH, Dept Oncol, Helsinki, Finland.;Univ Helsinki, Helsinki, Finland..
    Pavlidis, Nicholas
    Univ Ioannina, Dept Med Oncol, Ioannina, Greece..
    Purkalne, Gunta
    Pauls Stradins Clin Univ Hosp, Clin Oncol, Riga, Latvia..
    Awada, Ahmad
    Univ Libre Bruxelles, Inst Jules Bordet, Med Oncol Clin, Brussels, Belgium..
    Banerjee, Susana
    Royal Marsden NHS Fdn Trust, London, England..
    Bhatia, Smita
    Univ Alabama Birmingham, UAB Comprehens Canc Ctr, Sch Med, Inst Canc Outcomes & Survivorship,Dept Pediat,Div, Birmingham, AL 35294 USA..
    Bogaerts, Jan
    EORTC, Brussels, Belgium..
    Buckner, Jan
    Mayo Clin Canc Ctr, Dept Oncol Canc Practice, Rochester, MN 55902 USA..
    Cardoso, Fatima
    Champalimaud Clin Ctr, Breast Unit, Lisbon, Portugal..
    Casali, Paolo
    Fdn IRCCS Ist Nazl Tumori, Med Oncol Unit 2 Adult Mesenchymal Tumours & Rare, Milan, Italy..
    Chu, Edward
    Univ Pittsburgh, Univ Pittsburgh Canc Inst, Sch Med, Pittsburgh, PA 15260 USA..
    Close, Julia Lee
    Univ Florida, Dept Med, Div Hematology Oncol, Hematology Oncol Fellowship Program, Gainesville, FL 32610 USA.;Malcom Randall VA Med Ctr, Med Serv, Gainesville, FL 32608 USA..
    Coiffier, Bertrand
    Univ Lyon 1, Ctr Hosp Lyon Sud, Dept Hematol, Lyon, France..
    Connolly, Roisin
    Johns Hopkins Univ, Sidney Kimmel Comprehens Canc Ctr, Breast & Ovarian Canc Program, Baltimore, MD 21218 USA..
    Coupland, Sarah
    Univ Liverpool, Mol & Clin Canc Med, Pathol, Liverpool, Merseyside, England..
    De Petris, Luigi
    Karolinska Inst & Univ Hosp, Dept Oncol Radiumhemmet, Stockholm, Sweden..
    De Santis, Maria
    Univ Warwick, Canc Res Ctr, Coventry, W Midlands, England..
    de Vries, Elisabeth G. E.
    Univ Groningen, Univ Med Ctr Groningen, Dept Med Oncol, Groningen, Netherlands..
    Dizon, Don S.
    Massachusetts Gen Hosp, Harvard Med Sch, Dept Med, Oncol Sexual Hlth Clin, Boston, MA 02114 USA..
    Duff, Jennifer
    Univ Florida, Dept Med, Gainesville, FL 32611 USA..
    Duska, Linda R.
    Univ Virginia, Sch Med, Div Gynecol Oncol, Charlottesville, VA 22904 USA..
    Eniu, Alexandru
    Canc Inst Ion Chiricuta, Dept Breast Tumors, Cluj Napoca, Romania..
    Ernstoff, Marc
    Roswell Pk Canc Inst, Dept Med, Buffalo, NY 14263 USA..
    Felip, Enriqueta
    Vall Hebron Univ Hosp, VHIO, Dept Med Oncol, Barcelona, Spain..
    Fey, Martin F.
    Univ Hosp Bern, Inselspital, Bern, Switzerland..
    Gilbert, Jill
    Vanderbilt Univ, Sch Med, Nashville, TN 37240 USA..
    Girard, Nicolas
    Hosp Civils Lyon, Inst Oncol, Dept Resp Med Thorac Oncol, Lyon, France..
    Glaudemans, Andor W. J. M.
    Univ Groningen, Univ Med Ctr Groningen, Dept Nucl Med & Mol Imaging, Groningen, Netherlands..
    Gopalan, Priya K.
    Univ Florida, Dept Med, Gainesville, FL 32611 USA.;Malcom Randall VA Med Ctr, Med Sect, Gainesville, FL 32608 USA..
    Grothey, Axel
    Mayo Clin Rochester, Rochester, MN 55902 USA..
    Hahn, Stephen M.
    Univ Texas MD Anderson Canc Ctr, Div Radiat Oncol, Houston, TX 77030 USA..
    Hanna, Diana
    Univ Southern Calif, Hoag Family Canc Inst, Div Med Oncol, Newport Beach, CA 92663 USA..
    Herold, Christian
    Med Univ Vienna, Vienna Gen Hosp, Dept Biomed Imaging & Image Guided Therap, Vienna, Austria..
    Herrstedt, Jorn
    Univ Southern Denmark, Odense Univ Hosp, Dept Oncol, Odense, Denmark..
    Homicsko, Krisztian
    Univ Lausanne Hosp, Dept Oncol, Lausanne, Switzerland..
    Jones, Dennie V., Jr.
    Univ Florida, Dept Med, Div Hematol Oncol Stem Cell Transplant, Gainesville, FL 32611 USA.;Malcom Randall VA Med Ctr, Sect Hematol & Oncol, Gainesville, FL 32608 USA..
    Jost, Lorenz
    Cantonal Hosp Baselland, Liestal, Switzerland..
    Keilholz, Ulrich
    Charite Comprehens Canc Ctr, Berlin, Germany..
    Khan, Saad
    Univ Texas Southwestern Med Ctr Dallas, Hematol & Oncol Internal Med, Dallas, TX 75390 USA..
    Kiss, Alexander
    Univ Basel Hosp, Dept Psychosomat Div, Basel, Switzerland..
    Koehne, Claus-Henning
    Klinikum Oldenburg, Univ Clin Internal Medicine Oncol & Hematol, Oldenburg, Germany..
    Kunstfeld, Rainer
    Med Univ Vienna, Vienna Gen Hosp, Dermatol Clin, Vienna, Austria..
    Lenz, Heinz-Josef
    Univ Southern Calif, Norris Comprehens Canc Ctr, Dept Med Oncol, Los Angeles, CA 90007 USA..
    Lichtman, Stuart
    Mem Sloan Kettering Canc Ctr, Weill Cornell Med Coll, New York, NY 10065 USA..
    Licitra, Lisa
    Ist Nazl Tumori, Milan, Italy..
    Lion, Thomas
    Childrens Canc Res Inst, Div Mol Microbiol, Vienna, Austria.;LabDia Lab Diagnost GmbH, Vienna, Austria..
    Litiere, Saskia
    EORTC, Brussels, Belgium..
    Liu, Lifang
    EORTC, Dept Stat, Brussels, Belgium..
    Loehrer, Patrick J.
    Indiana Univ, Indiana Univ Melvin & Bren Simon Canc Ctr, Sch Med, Indianapolis, IN 46202 USA..
    Markham, Merry Jennifer
    Univ Florida, Coll Med, Div Hematol & Oncol, Gainesville, FL 32611 USA..
    Markman, Ben
    Monash Hlth, Monash Canc Ctr, Melbourne, Vic, Australia..
    Mayerhoefer, Marius
    Med Univ Vienna, Vienna Gen Hosp, Dept Biomed Imaging & Image Guided Therap, Vienna, Austria..
    Meran, Johannes G.
    Krankenhaus Barmherzige Bruder, Internal Dept, Vienna, Austria..
    Michielin, Olivier
    CHU Vaudois, Dept Oncol, Lausanne, Switzerland..
    Moser, Elizabeth Charlotte
    Champalimaud Fdn, Lisbon, Portugal..
    Mountzios, Giannis
    Univ Athens, Sch Med, Athens, Greece..
    Moynihan, Timothy
    Mayo Clin, Dept Med Oncol, Rochester, MN 55905 USA..
    Nielsen, Torsten
    Univ British Columbia, Vancouver, BC, Canada..
    Ohe, Yuichiro
    Natl Canc Ctr, Dept Thorac Oncol, Tokyo, Japan..
    Öberg, Kjell
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Endokrin tumörbiologi.
    Palumbo, Antonio
    Univ Turin, Turin, Italy..
    Peccatori, Fedro Alessandro
    European Inst Oncol, Dept Gynecol Oncol, Fertil & Procreat Unit, Milan, Italy..
    Pfeilstoecker, Michael
    Hanusch Hosp, Vienna, Austria..
    Raut, Chandrajit
    Brigham & Womens Hosp, Ctr Sarcoma & Bone Oncol, Dana Farber Canc Inst, Dept Surg,Div Surg Oncol, Boston, MA 02115 USA..
    Remick, Scot C.
    Maine Med Ctr Canc Inst, Dept Med, Scarborough, ME 04074 USA..
    Robson, Mark
    Mem Sloan Kettering Canc Ctr, Dept Med, Clin Genet Serv, New York, NY 10065 USA..
    Rutkowski, Piotr
    Maria Sklodowska Curie Mem Canc Ctr & Inst Oncol, Dept Soft Tissue Bone Sarcoma & Melanoma, Warsaw, Poland..
    Salgado, Roberto
    Inst Jules Bordet, Breast Canc Translat Res Lab, Brussels, Belgium.;GZA Antwerp, Dept Pathol, TCRU, Antwerp, Belgium..
    Schapira, Lidia
    Massachusetts Gen Hosp, Harvard Med Sch, Boston, MA 02114 USA..
    Schernhammer, Eva
    Med Univ Vienna, Ctr Publ Hlth, Dept Epidemiol, Vienna, Austria..
    Schlumberger, Martin
    Univ Paris Sud, Inst Gustave Roussy, Dept Nucl Med & Endocrine Oncol, Villejuif, France..
    Schmoll, Hans-Joachim
    Univ Halle Wittenberg, Univ Clin Halle Saale, Div Clin Oncol Res, Halle, Germany..
    Schnipper, Lowell
    Beth Israel Deaconess Med Ctr, Dept Med, Boston, MA 02215 USA..
    Sessa, Cristiana
    Oncol Inst Southern Switzerland, Bellinzona, Switzerland..
    Shapiro, Charles L.
    Mt Sinai Hlth Syst, Tisch Canc Ctr, Dubin Breast Ctr, Div Hematol Med Oncol, New York, NY 10029 USA..
    Steele, Julie
    Scripps Green Hosp, Dept Pathol, Scripps Clin, Anat Pathol, La Jolla, CA 92037 USA..
    Sternberg, Cora N.
    San Camillo Forlanini Hosp, Dept Med Oncol, Rome, Italy..
    Stiefel, Friedrich
    Univ Hosp Lausanne CHUV, Dept Psychiat, Psychiat Liaison Serv, Lausanne, Switzerland..
    Strasser, Florian
    Cantonal Hosp St Gallen, Dept Internal Med, Clin Oncol Hematol, Oncol Palliat Med, St Gallen, Switzerland.;Can