RT Journal Article SR Electronic T1 Reduced Expression of NDUFS3 and Its Clinical Significance in Serous Ovarian Cancer JF International Journal of Gynecologic Cancer JO Int J Gynecol Cancer FD BMJ Publishing Group Ltd SP 622 OP 629 DO 10.1097/IGC.0b013e318287a90d VO 23 IS 4 A1 Pei Wang A1 Xiaodong Cheng A1 Zhiqin Fu A1 Caiyun Zhou A1 Weiguo Lu A1 Xing Xie YR 2013 UL http://ijgc.bmj.com/content/23/4/622.abstract AB Objective Expression of the mitochondrial protein, nicotinamide adenine dinucleotide dehydrogenase (ubiquinone) Fe-S protein 3 (NDUFS3), down-regulates in some cancers including breast and kidney. This study evaluates NDUFS3 expression and its clinical significance in human serous ovarian adenocarcinoma.Methods 30 ovarian normal epithelium, 30 benign serous adenoma, and 100 serous carcinoma tissues were collected, and the expression of NDUFS3 protein and messenger RNA was evaluated by immunohistochemistry, Western blot, and real-time reverse transcription–polymerase chain reaction, respectively. Relationships between NDUFS3 protein expression and clinicopathologic parameters and disease-free and overall survival were also studied.Results The expression of NDUFS3 messenger RNA and protein was significantly decreased in serous ovarian adenocarcinoma compared with normal ovarian epithelium and benign serous adenoma (both P < 0.001). Reduced NDUFS3 immunostaining correlated with advanced Federation of Gynecology and Obstetrics stage (P = 0.002) and suboptimal residual disease after primary surgery (P = 0.021). Reduced NDUFS3 expression also correlated with shorter disease-free (P = 0.002) and overall survival (P = 0.004).Conclusions NDUFS3 expression is down-regulated in serous ovarian adenocarcinoma, suggesting that NDUFS3 may contribute to the development of serous ovarian cancer.