Bta-miR-200b promotes endometrial epithelial cell apoptosis by targeting MYB in cattle

文献类型： 外文期刊

第一作者： Lyu, Shijie

作者： Lyu, Shijie;Zhai, Yaying;Zhu, Xiaoting;Shi, Qiaoting;Chen, Fuying;Zhang, Geyang;Zhang, Zijing;Wang, Eryao;Zhai, Yaying;Zhang, Geyang

作者机构：

关键词： Bovine; miR-200b; Endometrial receptivity; Apoptosis; Proliferation

期刊名称：THERIOGENOLOGY （ 影响因子：2.923； 五年影响因子：2.843 ）

ISSN： 0093-691X

年卷期： 2023 年 195 卷

页码：

收录情况： SCI

摘要： Embryonic mortality is considered to be one of the main reasons for reduced conception rates in the cattle industry. Insufficient endometrial receptivity is a major factor resulting in embryo implantation failure and losses. Apoptosis of endometrial epithelial cells is an important process during establishment of uterine receptivity and embryo implantation. The aim of this study was to explore the role of bta-miR-200b on endometrial epithelial cell apoptosis in cattle. Overexpression of bta-miR-200b upregulated the expression of proapoptotic gene BCL2 associated X, apoptosis regulator (BAX) and endometrial recep-tivity marker gene osteopontin (OPN) at mRNA and protein level in bovine endometrial epithelial cells. Moreover, overexpression of bta-miR-200b was able to inhibit proliferation and promote apoptosis of bovine endometrial epithelial cells by arresting the cell cycle at the G0/G1 phase. MYB Proto-Oncogene (MYB) was verified to be a target of bta-miR-200b in bovine endometrial epithelial cells using dual-luciferase reporter assay. Transfection of bta-miR-200b mimics decreased the mRNA and protein expression of MYB. Overexpression of MYB decreased the effect of bta-miR-200b on apoptosis of bovine endometrial epithelial cells. Our findings suggest that bta-miR-200b can affect the apoptosis of endo-metrial epithelial cells in cattle by targeting the MYB gene.(c) 2022 Elsevier Inc. All rights reserved.

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