LAUSR

OBJECTIVE Ovarian cancer is one of the most serious disease in female reproductive system. Platinum is the first-line drug for the treatment of ovarian cancer, while the resistance of platinum drug in clinical hindered the relief ovarian cancer. Our previous study found that decreased FOXO3a might be a poor prognosis in human ovarian cancer. In this research, we study whether FOXO3a was involved in the mechanism of platinum drug resistance. METHODS The CCK-8 and FACS analysis were used to monitor the survival of ovarian cancer, and the FOXO3a expression was detected by western-blot. RESULTS We found that FOXO3a expression upregulated significantly in A2780 compared with A2780/DDP cells with the treatment of platinum. Moreover, overexpression of FOXO3a in ovarian cancer inversed the platinum resistance in ovarian cancer. CONCLUSION These observations reminded that the role of FOXO3a might be one of the critical mechanisms in developing platinum drug resistance in ovarian cancer.