Abstract
The number of Sertoli cells during proliferative phase determines the fate of the germ cells in male reproductive system. A well-characterized cell line may help in better understanding of Sertoli cell biology. Hence, the present study assessed estradiol signaling in a mouse immature Sertoli cell line (MSC-1) as an alternative model in place of primary culture of Sertoli cells. In this study, we used MSC-1 cell line, derived from 10-day old mice. The cell cycle parameters were assessed, and the expression and regulation of Sertoli cell-specific secretory genes (ABP; androgen-binding protein) and tight junction genes (claudin-5, occludin, and vimentin) in response to estradiol was studied. The results obtained suggested the presence of both estrogen receptors (ERα and ERβ) in MSC-1 cells. In vitro scratch assay and cell-cycle analysis suggested the proliferative effects of estradiol in both time- and dose-dependent manner. The gene expression profiles of ABP, claudin-5, and occludin showed biphasic regulation at low and high doses of estradiol. Analysis of signaling pathways suggested the activation of extracellular signal-regulated kinase (ERK) pathway with significantly increased pERK/ERK ratio (p<0.05). The results also sugge...Continue Reading
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May 26, 2016·Reproductive Sciences·Wei-Rong YangXian-Zhong Wang
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