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01-11-2009 | Original Article

Overexpression of Aurora B is associated with poor prognosis in epithelial ovarian cancer patients

Authors: Yi-Jen Chen, Chun-Ming Chen, Nae-Fang Twu, Ming-Shyen Yen, Chiung-Ru Lai, Hua-Hsi Wu, Peng-Hui Wang, Chiou-Chung Yuan

Published in: Virchows Archiv | Issue 5/2009

Abstract

Recent studies have indicated that Aurora B expression is related to cell proliferation and prognosis in many cancers, but its association with epithelial ovarian carcinoma is not fully understood. Therefore, we examined the Aurora B kinase expression in epithelial ovarian cancer patients. Using immunohistochemistry, the expression levels of Aurora B and phosphohistone H3 (Ser¹⁰) (mitosis-specific marker) were measured in 156 patients with epithelial ovarian cancer. The expression levels of Aurora B at the protein and messenger RNA levels were examined using Western blotting and reverse transcriptase polymerase chain reaction. In total, 53 tumorous ovarian samples (34.0%) showed Aurora B overexpression, which was significantly higher than that found in the 15 normal ovarian tissue samples (0%, p = 0.006). The overexpression of Aurora B was also significantly higher in cases showing phosphohistone H3 (Ser¹⁰) overexpression (44.3% vs. 27.4%, p = 0.03). In addition, the expression of Aurora B in poorly and moderately differentiated carcinomas of the ovary was significantly higher than in well-differentiated carcinomas (53.6% vs. 28.2% vs.10.0%, respectively, p = 0.02). The overexpression of Aurora B was significantly higher in cases with lymph node metastasis (p = 0.01) and a positive ascites cytology (p = 0.008). Overall, the Aurora B overexpression group demonstrated a significantly shorter progression-free survival (p = 0.001) and overall survival (p = 0.023) than the Aurora B low expression group using univariate analysis (log-rank statistic). Aurora B is an effective predictor of aggressive epithelial ovarian carcinoma in terms of differentiation, metastasis, and prognosis.

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Title: Overexpression of Aurora B is associated with poor prognosis in epithelial ovarian cancer patients
Authors: Yi-Jen Chen
Chun-Ming Chen
Nae-Fang Twu
Ming-Shyen Yen
Chiung-Ru Lai
Hua-Hsi Wu
Peng-Hui Wang
Chiou-Chung Yuan
Publication date: 01-11-2009
Publisher: Springer-Verlag
Published in: Virchows Archiv / Issue 5/2009
Print ISSN: 0945-6317
Electronic ISSN: 1432-2307
DOI: https://doi.org/10.1007/s00428-009-0838-3

At a glance: The STEP trials

Springer Medicine

Overexpression of Aurora B is associated with poor prognosis in epithelial ovarian cancer patients

Abstract

At a glance: The STEP trials

Springer Medicine

Abstract

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