1. Clinical and pathological associations of PTEN expression in ovarian cancer: a multicentre study from the Ovarian Tumour Tissue Analysis Consortium.
- Author
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Martins FC, Couturier DL, Paterson A, Karnezis AN, Chow C, Nazeran TM, Odunsi A, Gentry-Maharaj A, Vrvilo A, Hein A, Talhouk A, Osorio A, Hartkopf AD, Brooks-Wilson A, DeFazio A, Fischer A, Hartmann A, Hernandez BY, McCauley BM, Karpinskyj C, de Sousa CB, Høgdall C, Tiezzi DG, Herpel E, Taran FA, Modugno F, Keeney G, Nelson G, Steed H, Song H, Luk H, Benitez J, Alsop J, Koziak JM, Lester J, Rothstein JH, de Andrade JM, Lundvall L, Paz-Ares L, Robles-Díaz L, Wilkens LR, Garcia MJ, Intermaggio MP, Alcaraz ML, Brett MA, Beckmann MW, Jimenez-Linan M, Anglesio M, Carney ME, Schneider M, Traficante N, Pejovic N, Singh N, Le N, Sinn P, Ghatage P, Erber R, Edwards R, Vierkant R, Ness RB, Leung S, Orsulic S, Brucker SY, Kaufmann SH, Fereday S, Gayther S, Winham SJ, Kommoss S, Pejovic T, Longacre TA, McGuire V, Rhenius V, Sieh W, Shvetsov YB, Whittemore AS, Staebler A, Karlan BY, Rodriguez-Antona C, Bowtell DD, Goode EL, Høgdall E, Candido Dos Reis FJ, Gronwald J, Chang-Claude J, Moysich KB, Kelemen LE, Cook LS, Goodman MT, Fasching PA, Crawford R, Deen S, Menon U, Huntsman DG, Köbel M, Ramus SJ, Pharoah PDP, and Brenton JD
- Subjects
- Adenocarcinoma, Clear Cell enzymology, Adenocarcinoma, Clear Cell mortality, Adenocarcinoma, Clear Cell pathology, Age Factors, Biomarkers, Tumor biosynthesis, Biomarkers, Tumor genetics, Carcinoma, Ovarian Epithelial enzymology, Carcinoma, Ovarian Epithelial genetics, Carcinoma, Ovarian Epithelial mortality, Carcinoma, Ovarian Epithelial pathology, Cohort Studies, Down-Regulation, Female, Gene Knockout Techniques, Humans, Middle Aged, Neoplasm Staging, Ovarian Neoplasms enzymology, Ovarian Neoplasms genetics, Ovarian Neoplasms mortality, Ovarian Neoplasms pathology, PTEN Phosphohydrolase deficiency, PTEN Phosphohydrolase genetics, Prospective Studies, Receptors, Androgen biosynthesis, Receptors, Estrogen biosynthesis, Receptors, Progesterone biosynthesis, Tissue Array Analysis, Tumor Suppressor Proteins biosynthesis, Tumor Suppressor Proteins deficiency, PTEN Phosphohydrolase biosynthesis
- Abstract
Background: PTEN loss is a putative driver in histotypes of ovarian cancer (high-grade serous (HGSOC), endometrioid (ENOC), clear cell (CCOC), mucinous (MOC), low-grade serous (LGSOC)). We aimed to characterise PTEN expression as a biomarker in epithelial ovarian cancer in a large population-based study., Methods: Tumours from 5400 patients from a multicentre observational, prospective cohort study of the Ovarian Tumour Tissue Analysis Consortium were used to evaluate associations between immunohistochemical PTEN patterns and overall survival time, age, stage, grade, residual tumour, CD8+ tumour-infiltrating lymphocytes (TIL) counts, expression of oestrogen receptor (ER), progesterone receptor (PR) and androgen receptor (AR) by means of Cox proportional hazard models and generalised Cochran-Mantel-Haenszel tests., Results: Downregulation of cytoplasmic PTEN expression was most frequent in ENOC (most frequently in younger patients; p value = 0.0001) and CCOC and was associated with longer overall survival in HGSOC (hazard ratio: 0.78, 95% CI: 0.65-0.94, p value = 0.022). PTEN expression was associated with ER, PR and AR expression (p values: 0.0008, 0.062 and 0.0002, respectively) in HGSOC and with lower CD8 counts in CCOC (p value < 0.0001). Heterogeneous expression of PTEN was more prevalent in advanced HGSOC (p value = 0.019) and associated with higher CD8 counts (p value = 0.0016)., Conclusions: PTEN loss is a frequent driver in ovarian carcinoma associating distinctly with expression of hormonal receptors and CD8+ TIL counts in HGSOC and CCOC histotypes.
- Published
- 2020
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