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14-3-3sigma expression and prognostic value in patients with epithelial ovarian carcinoma: a high throughput tissue microarray analysis

Andrews, C.
South, S.
Beck, A.
Lele, S.
Odunsi, K.
Published in European journal of surgical oncology. 2009, vol. 35, no. 7, p. 763-767
Abstract AIMS: 14-3-3sigma is a potential tumor suppressor gene that when it is silenced by CpG methylation can contribute to cancer development. Previously, we showed that hypermethylation of 14-3-3sigma in human ovarian cancer and ovarian cancer cell lines, and that 14-3-3sigma hypermethylation correlated with loss of its expression by immunohistochemistry. In the present study, our aim is to determine the value of 14-3-3sigma in predicting disease outcome in series of patients with epithelial ovarian cancer. MATERIALS AND METHODS: A tumor microarray (TMA) of 192 patients with a very detailed characteristic and follow-up was performed. The slides were immunostained with 14-3-3sigma antibody and its expression was correlated with age, tumor types, grade, stage, volume of residual tumor, response to therapy, overall survival (OS) and disease-free survival (DFS). RESULTS: A marginal association with the volume of residual tumor after surgery (chi2 p = 0.044, Fischer's exact 0.051) was seen. There was no association between loss of 14-3-3sigma expression and any of age, stage, grade, tumor subtypes, and clinical response to therapy. Survival analysis according to Kaplan-Meier method showed that loss of 14-3-3sigma expression was not associated with OS or DFS (p = 0.702, p = 0.118, respectively). CONCLUSION: Even though 14-3-3sigma is involved in ovarian tumorigenesis, it does not have a prognostic value as a biomarker to predict patients' outcome.
Keywords Adenocarcinoma/*genetics/metabolism/surgeryExonucleases/*biosynthesisFemaleHumansMiddle AgedNeoplasm Proteins/*biosynthesisOvarian Neoplasms/*genetics/metabolism/surgeryPrognosisSurvival AnalysisTissue Array AnalysisTumor Markers, Biological/*biosynthesis
PMID: 19081223
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MHAWECH-FAUCEGLIA, Paulette et al. 14-3-3sigma expression and prognostic value in patients with epithelial ovarian carcinoma: a high throughput tissue microarray analysis. In: European Journal of Surgical Oncology, 2009, vol. 35, n° 7, p. 763-767. doi: 10.1016/j.ejso.2008.10.014 https://archive-ouverte.unige.ch/unige:28156

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Deposited on : 2013-05-28

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