miR-26b promotes granulosa cell apoptosis by targeting ATM during follicular atresia in porcine ovary.

Autor: Fei Lin, Ran Li, Zeng Xiang Pan, Bo Zhou, De Bing Yu, Xu Guang Wang, Xue Shan Ma, Jing Han, Ming Shen, Hong Lin Liu
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: PLoS ONE, Vol 7, Iss 6, p e38640 (2012)
Druh dokumentu: article
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0038640
Popis: More than 99% of ovarian follicles undergo atresia in mammals, but the mechanism of follicular atresia remains to be elucidated. In this study, we explored microRNA (miRNA) regulation of follicular atresia in porcine ovary. A miRNA expression profile was constructed for healthy, early atretic, and progressively atretic follicles, and the differentially expressed miRNAs were selected and analyzed. We found that miR-26b, which was upregulated during follicular atresia, increased the number of DNA breaks and promoted granulosa cell apoptosis by targeting the ataxia telangiectasia mutated gene directly in vitro.
Databáze: Directory of Open Access Journals