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The prognostic relevance of tumour-infiltrating plasma cells and immunoglobulin kappa C indicates an important role of the humoral immune response in non-small cell lung cancer
Department of Statistics, Technical University Dortmund, Germany.
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Molekylär och morfologisk patologi.
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för immunologi, genetik och patologi, Molekylär och morfologisk patologi.
Leibniz Research Centre for Working Environment and Human Factors (IfADo) at Dortmund TU, Dortmund, Germany.
Vise andre og tillknytning
2013 (engelsk)Inngår i: Cancer Letters, ISSN 0304-3835, E-ISSN 1872-7980, Vol. 333, nr 2, s. 222-228Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A prognostic impact of immunoglobulin kappa C (IGKC) expression has been described in cancer. We analysed the influence of B-cell and plasma cell markers, as well as IGKC expression, in non-small lung cancer (NSCLC) using immunohistochemistry on a tissue microarray. IGKC protein expression was independently associated with longer survival, with particular impact in the adenocarcinoma subgroup. Moreover, a correlation was seen with CD138+ cells, but not with CD20. CD138 expression revealed a comparable association with survival. In conclusion, IGKC expression in stroma–infiltrating plasma cells is a prognostic marker in NSCLC, supporting emerging treatment concepts that exploit the humoral immune response.

sted, utgiver, år, opplag, sider
2013. Vol. 333, nr 2, s. 222-228
HSV kategori
Identifikatorer
URN: urn:nbn:se:uu:diva-181908DOI: 10.1016/j.canlet.2013.01.036ISI: 000318838700011OAI: oai:DiVA.org:uu-181908DiVA, id: diva2:558058
Tilgjengelig fra: 2012-10-01 Laget: 2012-10-01 Sist oppdatert: 2018-02-01bibliografisk kontrollert
Inngår i avhandling
1. Molecular Characterisation and Prognostic Biomarker Discovery in Human Non-Small Cell Lung Cancer
Åpne denne publikasjonen i ny fane eller vindu >>Molecular Characterisation and Prognostic Biomarker Discovery in Human Non-Small Cell Lung Cancer
2012 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Non-small cell lung cancer (NSCLC) constitutes a clinically, histologically, and genetically heterogeneous disease entity that represents a major cause of cancer-related death. Early-stage patients, who undergo surgery with curative intent, experience high recurrence rates and the effect of adjuvant treatment is modest. Prognostic biomarkers would be of particular relevance to guide intensified treatment depending on expected outcome and moreover often infer a biological role in tumourigenesis.

This thesis presents a translational study approach to establish a well-characterised NSCLC frozen-tissue cohort and to obtain a profile of each specimen with regard to genome-wide copy number alterations, global gene expression levels and somatic mutations in selected cancer-related genes. Furthermore, the generation of a formalin-fixed, paraffin-embedded tissue microarray enabled validation of findings on the protein level using immunohistochemistry. The comprehensive molecular characterisation, combined with data on clinical parameters, enabled the analysis of biomarkers linked to disease outcome. In Paper I, single nucleotide polymorphism arrays were applied to assess copy number alterations in NSCLC and associations with overall survival in adenocarcinoma and squamous cell carcinoma were described. In Paper II, we evaluated expression levels of selected stromal proteins in NSCLC using immunohistochemistry and the adhesion molecule CD99 was identified as an outcome-related biomarker in two independent cohorts. Paper III presents a strategy for prognostic biomarker discovery based on gene expression profiling, meta-analysis, and validation of protein expression on tissue microarrays, and suggests the putative tumour suppressor CADM1 as a candidate biomarker. In Paper IV, we propose a prognostic role for tumour-infiltrating IGKC-expressing plasma cells in the local tumour microenvironment, indicating an involvement of the humoral immune response in anti-tumor activity. In Paper V, we combined next-generation deep sequencing with statistical analysis of the TP53 database to define novel parameters for database curation.

In summary, this thesis exemplifies the benefits of a translational study approach, based on a comprehensive tumour characterisation, and describes molecular markers associated with clinical outcome in NSCLC.

sted, utgiver, år, opplag, sider
Uppsala: Acta Universitatis Upsaliensis, 2012. s. 68
Serie
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 1651-6206 ; 817
Emneord
non-small cell lung cancer, biomarker, prognosis, microarray, copy number aberration
HSV kategori
Forskningsprogram
Medicinsk vetenskap
Identifikatorer
urn:nbn:se:uu:diva-181912 (URN)978-91-554-8482-8 (ISBN)
Disputas
2012-11-16, Rudbecksalen, Rudbecklaboratoriet, Dag Hammarskjölds väg 20, Uppsala, 13:15 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2012-10-26 Laget: 2012-10-01 Sist oppdatert: 2018-01-12bibliografisk kontrollert

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