Asian Pacific Journal of Cancer Prevention

Asian Pacific Journal of Cancer Prevention (아시아태평양암예방학회)
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Effect of Autophagy-Related Beclin1 on Sensitivity of Cisplatin-Resistant Ovarian Cancer Cells to Chemotherapeutic Agents

  • Sun, Yang (Department of Gynecology, Fujian Provincial Hospital, Fujian Provincial Clinical Medical College, Fujian Medical University) ;
  • Liu, Jia-Hua (Department of Gynecology, Fujian Provincial Hospital, Fujian Provincial Clinical Medical College, Fujian Medical University) ;
  • Jin, Long (Department of Pathology, Fujian Provincial Hospital, Fujian Provincial Clinical Medical College, Fujian Medical University) ;
  • Sui, Yu-Xia (Department of Pharmacy, Fujian Provincial Hospital, Fujian Provincial Clinical Medical College, Fujian Medical University) ;
  • Han, Li-Li (Fujian Provincial Key Laboratory of Cardiovascular Disease, Fujian Provincial Hospital) ;
  • Huang, Yin (Department of Pathology, Fujian Provincial Hospital, Fujian Provincial Clinical Medical College, Fujian Medical University)
  • Published : 2015.04.14
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Abstract

The purpose of the study was to determine the effects of autophagy related gene Beclin1 at different levels of expression on the sensitivity of cisplatin-resistant ovarian cancer cells (SKOV3/DDP) to different chemotherapeutics. In pSUPER-Beclin1 transfected cells, real-time fluorescence quantitative RT-PCR and Western blot analysis showed that expression was significantly inhibited. Flow cytometry revealed that the mean fluorescence intensity (MDC), reflecting autophagy, and cells in the G0/G1 phase were markedly reduced. When compared with the blank control group, inhibition of Beclin1 expression in SKOV3/DDP cells not only increased the rate of apoptosis following treatment with chemotherapeutics, but also increased the sensitivity. These findings suggest that Beclin1 expression plays an important role in chemotherapeutic agent-induced death of SKOV3/DDP cells. Inhibition of autophagy related gene Beclin1 expression in SKOV3/DDP cells may increase the rate of apoptosis and elevate the sensitivity to chemotherapeutics.

Keywords

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