title: Annexin A2 plays a critical role in epithelial ovarian cancer.
abstract: OBJECTIVE
  This study aimed at investigating the potential role and prognostic significance of Annexin A2 in human epithelial ovarian cancer (EOC).
  
  
  METHODS
  Western blot was used to evaluate the expression of Annexin A2 in nine fresh EOC tissues, and immunohistochemical analysis was performed on formalin-fixed paraffin-embedded sections of 119 cases of ovarian cancers. Then, we used Fisher exact test to analyze the correlation between Annexin A2 and clinicopathological parameters. Starvation refeeding was used to detect the alteration of Annexin A2 in HO8910 cell cycle.
  
  
  RESULTS
  Annexin A2 was overexpressed in carcinoma tissues compared with normal tissue, and the expression levels gradually increased from G1 to G3. Moreover, the staining of tissue microarray was consistent with the result we got from western blot, increasing from G1 to G3 gradually, and it was related to the Figo stage (P = 0.005), histologic grade (P = 0.002), ascite (P < 0.001), malignant tumor cells (P < 0.001), residual tumor size (P = 0.044), Ki-67 (P = 0.003). Kaplan-Meier analysis revealed that high Annexin A2 expression was significantly associated with poor prognoses of the patients (P < 0.001). Multivariate analysis demonstrated that Annexin A2 was an independent prognostic indicator for overall survival. Starvation refeeding indicated that Annexin A2 was related to EOC cell proliferation.
  
  
  CONCLUSIONS
  We could hypothesize that Annexin A2 acted a critical role in EOC cell proliferation, and may be used as a potential and novel therapeutic target for EOC. These data suggest that Annexin A2 may promote the progression of EOC and be a therapeutic target for EOC therapy.
authors.affiliation: Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Deng
authors.forename: Chen
authors.initials: C
authors.lastname: Chen
authors.forename: Minhui
authors.initials: M
authors.lastname: Hua
authors.forename: Qinghua
authors.initials: Q
authors.lastname: Xi
authors.forename: Rong
authors.initials: R
authors.lastname: Liu
authors.forename: Shuyun
authors.initials: S
authors.lastname: Yang
authors.forename: Jian
authors.initials: J
authors.lastname: Liu
authors.forename: Jianxin
authors.initials: J
authors.lastname: Zhong
authors.forename: Meilan
authors.initials: M
authors.lastname: Tang
authors.forename: Shumin
authors.initials: S
authors.lastname: Lu
authors.forename: Chunhui
authors.initials: C
authors.lastname: Tang
authors.forename: Yingying
authors.initials: Y
authors.lastname: Wang
mesh_terms: D000328:Adult; D000368:Aged; D017306:Annexin A2 / Q000378:metabolism*; D000077216:Carcinoma, Ovarian Epithelial; D049109:Cell Proliferation / Q000502:physiology*; D018450:Disease Progression; D005260:Female; D006801:Humans; D053208:Kaplan-Meier Estimate; D008875:Middle Aged; D015999:Multivariate Analysis; D009375:Neoplasms, Glandular and Epithelial / Q000473:pathology*; D010051:Ovarian Neoplasms / Q000473:pathology*; D011379:Prognosis
chemical_list: D017306:Annexin A2