期刊
ANIMAL REPRODUCTION SCIENCE
卷 215, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.anireprosci.2020.106328
关键词
Sheep; Endometrial epithelial cells; Estradiol-17 beta; YAP1
资金
- National Nature Science Foundation of China [31802148]
- China Agriculture Research System [CARS-38]
- Priority Academic Program Development of Jiangsu Higher Education Institutions [280100745113]
Yes-associated protein 1 (YAP1) transcription regulator of the Hippo protein kinase pathway, serves as a key regulator of tissue growth and organ size by regulating cell proliferation and apoptosis. Effects of YAP1 on proliferation and apoptosis of sheep endometrial epithelial cells (EEC) as a result of estradiol-17 beta (E-2) treatment, however, remain unclear. In the present study, the abundance of YAP1 protein in the uterine horn was greater than that in the uterine body or cervix. The YAP1 protein was primarily localized in the endometrial luminal and glandular epithelial cells of the uterine horn of ewes on day 2 of the estrous cycle. Compared with control samples, there was a lesser abundance of YAP1 mRNA transcript that was associated with a lesser proliferation and greater apoptosis of EEC. There were also lesser concentrations of epidermal growth factor and insulin-like growth factor 1 in the spent culture medium when there was a lesser abundance of YAP1 mRNA in EEC compared with those in the control group. When there was a greater abundance of YAP1 mRNA transcript, there were greater concentrations of epidermal growth factor and insulin-like growth factor 1 in the spent media. Furthermore, with estradiol-17 beta treatment the abundance of YAP1 mRNA transcript was similar to that of the control samples. Taken together, estradiol-17 beta may function as an essential regulator of EEC proliferation and apoptosis by modulation of concentrations of YAP1 protein in the sheep uterus. These results indicate there are molecular mechanisms of estradiol-17 beta and YAP1 in EEC proliferation and apoptosis of ewes.
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