Survivin in ovary tumors.

Introduction: Survivin is a member of the inhibitor of apoptosis protein (IAP) family which are selectively overexpressed in human neoplasms, and its expression has been shown to be connected with cell proliferation. We analyzed survivin expression in ovarian epithelial neoplasms to evaluate its role in the development of ovarian tumors. Material and methods: Immunohistochemistry assays were conducted in 137 cases (48 ovarian carcinoma, 43 borderline ovarian carcinoma, 46 benign ovarian tumor, and 20 samples of normal ovarian tissue of ovarian epithelial neoplasms. Histological types included serous (n=68) and mucinous (n=69) tumors. All tumors were reviewed histopathologically and classified according to the WHO criteria. Results: Survivin expression in the group of serous neoplasms was detected in 24.0% (6 of 25) of benign cases, in 60.0% (12 of 20) of borderline tumors, and 91.0% (24 of 47) of ovarian carcinomas. In the group of mucinous tumors, survivin expression was found in 33.5% (7 of 21) of benign cases, 43.5% (10 of 23) of borderline tumors, and 80.0% (20 of 25) of malignant tumors. Conclusions: Our results demonstrate that survivin overexpression may play a crucial role in the development of epithelial ovarian neoplasms and be an important prognostic factor for the influence of survivin expression on epithelial ovarian cancers.