COMPARATIVE STUDY
JOURNAL ARTICLE

Overexpression of keratin 17 is associated with poor prognosis in epithelial ovarian cancer

Ya-Feng Wang, Hai-Yang Lang, Jing Yuan, Jun Wang, Rui Wang, Xin-Hui Zhang, Jie Zhang, Tao Zhao, Yu-Rong Li, Jun-Ye Liu, Li-Hua Zeng, Guo-Zhen Guo
Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine 2013, 34 (3): 1685-9
23430585
The aim of this study was to investigate the association between keratin 17 (K17) expression and the clinicopathological features of patients with epithelial ovarian cancer (EOC). K17 expression was detected by real-time quantitative RT-PCR in EOC and adjacent noncancerous tissues. In addition, K17 expression was analyzed by immunohistochemistry in 104 clinicopathologically characterized EOC cases. The expression levels of K17 mRNA and protein in EOC tissues were both significantly higher than those in noncancerous tissues. In addition, positive expression of K17 correlated with the clinical stage (p=0.001). Furthermore, Kaplan-Meier survival analysis showed that a high expression level of K17 resulted in a significantly poor prognosis of EOC patients. Multivariate analysis revealed that EOC expression level was an independent prognostic parameter for the overall survival rate of EOC patients. Our data are the first to suggest that increased K17 expression in EOC is significantly associated with aggressive progression and poor prognosis. K17 may be an important molecular marker for predicting the carcinogenesis, progression, and prognosis of EOC.

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