期刊
JOURNAL OF ANIMAL SCIENCE AND BIOTECHNOLOGY
卷 14, 期 1, 页码 -出版社
BMC
DOI: 10.1186/s40104-023-00884-7
关键词
ASB9; CLOCK; Granulosa cells; Pig; Proliferation
The CLOCK protein was found to inhibit the proliferation of porcine ovarian granulosa cells by increasing ASB9 level.
BackgroundClock circadian regulator (CLOCK) is a core factor of the mammalian biological clock system in regulating female fertility and ovarian physiology. However, CLOCK's specific function and molecular mechanism in porcine granulosa cells (GCs) remain unclear. In this study, we focused on CLOCK's effects on GC proliferation.ResultsCLOCK significantly inhibited cell proliferation in porcine GCs. CLOCK decreased the expression of cell cycle-related genes, including CCNB1, CCNE1, and CDK4 at the mRNA and protein levels. CDKN1A levels were upregulated by CLOCK. ASB9 is a newly-identified target of CLOCK that inhibits GC proliferation; CLOCK binds to the E-box element in the ASB9 promoter.ConclusionsThese findings suggest that CLOCK inhibits the proliferation of porcine ovarian GCs by increasing ASB9 level.
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