MiR-126-3p promotes the cell proliferation and inhibits the cell apoptosis by targeting TSC1 in the porcine granulosa cells
文献类型： 外文期刊
作者： Yuan, Xiaolong 1 ; Deng, Xi 1 ; Zhou, Xiaofeng 1 ; Zhang, Ailing; Xing, Yan 1 ; Zhang, Zhe 1 ; Zhang, Hao 1 ; Li, Jiaq 1 ;
作者机构： 1.South China Agr Univ, Coll Anim Sci, Guangdong Prov Key Lab Agroanim Genom & Mol Breed, Natl Engn Res Ctr Breeding Swine Ind, Guangzhou, Guangdong, Peoples R China
2.South China Agr Univ, Coll Anim Sc
关键词： Ovarian granulosa cells; miR-126-3p; TSC1; Cell apoptosis; Cell proliferation
期刊名称：IN VITRO CELLULAR & DEVELOPMENTAL BIOLOGY-ANIMAL （ 影响因子：2.416； 五年影响因子：2.117 ）
ISSN： 1071-2690
年卷期： 2018 年 54 卷 10 期
页码：
收录情况： SCI
摘要： In mammalian ovaries, many studies demonstrated that the proliferation and apoptosis of granulosa cells are involved in folliculogenesis. Previous evidence suggests that miR-126-3p might get involved in the proliferation and apoptosis of granulosa cells, and tuberous sclerosis complex 1 (TSC1) gene was predicted as one target of miR-126-3p, and moreover, granulosa cell-specific TSC1 knockout stimulated folliculogenesis in mice. However, the molecular regulation of miR-126-3p on TSC1 and its effects on cell proliferation and apoptosis remain virtually unexplored in granulosa cells. Using porcine granulosa cells as a model, the luciferase report assay, mutation, deletion, Annexin-V/PI staining, and EdU assays were applied to investigate the molecular mechanism for miR-126-3p regulating the expression of TSC1 and their effects on the cell proliferation and apoptosis. We found that miR-126-3p showed a positive effect on cell proliferation and a negative effect on cell apoptosis in porcine granulosa cells, and knockdown of TSC1 significantly promoted cell proliferation and significantly inhibited cell apoptosis in porcine granulosa cells. Furthermore, miR-126-3p might target and repress the expressions of TSC1 at the post-transcriptional level, thereby promoting cell proliferation and inhibiting cell apoptosis of granulosa cells. These findings would provide of great insight in further exploring the molecular regulation of miR-126-3p and TSC1 on the functions of granulosa cells during the folliculogenesis in mammals.
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