title: Correlation between the expression of integrins in prostate cancer and clinical outcome in 1284 patients.
abstract: The aim of this study was to investigate the expression of a panel of integrins in prostate cancer in order to explore their potential for tumor biology. Formalin-fixed and paraffin-embedded tissue samples of 1284 prostate cancer patients were retrieved from the archive of the Department of Pathology. Immunostaining was done with rabbit monoclonal antibodies directed against αvβ3, αvβ5, αvβ6, αvβ8, β3, and αv-pan. Staining results were correlated with clinicopathologic patient characteristics and patient survival. Immunostaining of tumor cells performed on whole tissue sections of 52 patients was sparse for αvβ3, αvβ6, and αvβ8, and more prevalent for αvβ5 and αv-pan. αvβ5, αvβ8, and αv-pan were selected for further analyses in tissue microarrays representing the entire study cohort. αvβ8 staining was generally observed in peripheral nerves. αvβ5 and αv-pan provided strong evidence for the differential expression of these integrins in prostate cancer. The expression was variable with regard to the histoanatomical/cytoanatomical localization, cell type, intensity of immunolabeling, and Gleason pattern. αvβ5 and αv-pan are differentially expressed in prostate cancer, and the differentiation of prostate cancer seems to influence integrin expression and subcellular distribution.
authors.affiliation: Department of Pathology, Christian-Albrechts-University, Kiel, Germany.
authors.forename: Katharina
authors.initials: K
authors.lastname: Heß
authors.affiliation: Department of Pathology, Christian-Albrechts-University, Kiel, Germany.
authors.forename: Christine
authors.initials: C
authors.lastname: Böger
authors.affiliation: Department of Pathology, Christian-Albrechts-University, Kiel, Germany.
authors.forename: Hans-Michael
authors.initials: HM
authors.lastname: Behrens
authors.affiliation: Department of Pathology, Christian-Albrechts-University, Kiel, Germany. Electronic address: christoph.roecken@uksh.de.
authors.forename: Christoph
authors.initials: C
authors.lastname: Röcken
mesh_terms: D000368:Aged; D000818:Animals; D000911:Antibodies, Monoclonal / Q000276:immunology; D014408:Biomarkers, Tumor / Q000378:metabolism*; D005858:Germany; D006801:Humans; D016023:Integrins / Q000378:metabolism*; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011471:Prostatic Neoplasms / Q000175:diagnosis / Q000378:metabolism*; D011817:Rabbits; D012189:Retrospective Studies; D016019:Survival Analysis
chemical_list: D000911:Antibodies, Monoclonal; D014408:Biomarkers, Tumor; D016023:Integrins
keywords: Biomarker; Gleason score; Immunohistochemistry; Integrins; Prostate cancer