Curcusone C induces apoptosis in endometrial cancer cells via mitochondria-dependent apoptotic and ERK pathway
BIOTECHNOLOGY LETTERS(2020)
摘要
Objective Jatropha curcas has been used in traditional medicine in Africa to treat cancer for thousands of years. This study aimed to examine the anti-endometrial cancer effect of Curcusone C, a naturally occurring rhamnofolane diterpene, isolated from J. curcas and reveal its molecular mechanism of action. Results Curcusone C treatment caused significant anti-proliferative and apoptotic effects in human endometrial cancer (EC) Ishikawa and HEC-1A cells in a dose-dependent manner. Exposure of EC cells to Curcusone C resulted in apoptosis, which was associated with cytochrome c release, caspase-3 and caspase-9 activation, Bcl-xL/Bax dysregulation, and decreased expression of inhibitors of apoptosis proteins, such as XIAP and survivin. The inhibitory effect induced by Curcusone C was greatly impaired by the overexpression of survivin or Bax −/− MEFs or the knockdown of Bim expression. Moreover, Curcusone C activated mitogen-activated protein kinases, and the ERK inhibitor U0126 significantly attenuated the growth-inhibitory and apoptotic effects of Curcusone C in Ishikawa cells. Conclusion Taken together, the results demonstrate the anti-endometrial cancer potential of Curcusone C for the treatment of endometrial cancer.
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关键词
Apoptosis, Bax, Bim, Curcusone C, Endometrial cancer, Survivin
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