Critical Role of FoxO1 in Granulosa Cell Apoptosis Caused by Oxidative Stress and Protective Effects of Grape Seed Procyanidin B2
文献类型： 外文期刊
第一作者： Zhang, Jia-Qing
作者： Zhang, Jia-Qing;Gao, Bin-Wen;Wang, Jing;Ren, Qiao-Ling;Chen, Jun-Feng;Ma, Qiang;Zhang, Zi-Jing;Xing, Bao-Song
作者机构：
期刊名称：OXIDATIVE MEDICINE AND CELLULAR LONGEVITY （ 影响因子：6.543； 五年影响因子：7.454 ）
ISSN： 1942-0900
年卷期： 2016 年
页码：
收录情况： SCI
摘要： Reactive oxygen species (ROS) are closely related to the follicular granulosa cell apoptosis. Grape seed procyanidin B2 (GSPB2) has been reported to possess potent antioxidant activity. However, the GSPB2-mediated protective effects and the underlying molecular mechanisms in granulosa cell apoptosis process remain unknown. In this study, we showed for the first time that GSPB2 treatment decreased FoxO1 protein level, improved granulosa cell viability, upregulated LC3-II protein level, and reduced granulosa cell apoptosis rate. Under a condition of oxidative stress, GSPB2 reversed FoxO1 nuclear localization and increased its level in cytoplasm. In addition, FoxO1 knockdown inhibited the protective effects of GSPB2 induced. Our findings suggest that FoxO1 plays a pivotal role in regulating autophagy in granulosa cells, GSPB2 exerts a potent and beneficial role in reducing granulosa cell apoptosis and inducing autophagy process, and targeting FoxO1 could be significant in fighting against oxidative stress-reduced female reproductive system diseases.
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