Abstract
Purpose
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.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (No. 81302285).
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The authors declare that they have no conflict of interests.
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Y. Deng and C. Chen contributed equally to this work.
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Deng, Y., Chen, C., Hua, M. et al. Annexin A2 plays a critical role in epithelial ovarian cancer. Arch Gynecol Obstet 292, 175–182 (2015). https://doi.org/10.1007/s00404-014-3598-5
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DOI: https://doi.org/10.1007/s00404-014-3598-5