Follicle-stimulating hormone regulation of androgen-binding protein messenger RNA in sertoli cell cultures

Molecular Endocrinology
S H HallD R Joseph

Abstract

FSH plays an important role in testicular Sertoli cell differentiation and function in spermatogenesis. Previous studies using rat androgen-binding protein (ABP) as a marker of FSH action on Sertoli cells have demonstrated in vivo and in vitro regulation of ABP. We now have extended these studies to examine FSH regulation of ABP mRNA using Northern blot hybridization. In the immature rat testicular ABP mRNA [1.7- and 2.3-kilobase (kb) species] increased with age and reached a maximum 20 days postpartum, coincident with an increased plasma FSH concentration. To determine the direct effect of FSH on Sertoli cells, we examined ABP mRNA in vitro. In Sertoli cell-enriched cultures FSH was found to maintain the major 1.7-kb ABP RNA transcript level over 5 days of treatment in a dose-dependent manner, whereas in the absence of FSH, ABP mRNA declined with time in culture. The ABP mRNA maintenance by FSH was accompanied by higher concentrations of secreted immunoreactive ABP, which declined in the absence of FSH. This FSH effect on ABP mRNA and secreted ABP was mimicked by the cAMP analog (Bu)2cAMP. After the decline of ABP mRNA during culture, administration of FSH did not result in a detectable increase in the 1.7-kb ABP mRNA within 3...Continue Reading

Citations

Jan 1, 1995·Neuroscience and Biobehavioral Reviews·D A Damassa, J M Cates
Jan 1, 1991·The Journal of Steroid Biochemistry and Molecular Biology·D R JosephD M Bayliss
Jan 1, 1991·The Journal of Steroid Biochemistry and Molecular Biology·C Mercier-BodardE E Baulieu
Jan 1, 1991·The Journal of Steroid Biochemistry and Molecular Biology·S R PlymateW Rosner
Apr 6, 2004·Molecular and Cellular Endocrinology·T ImaiK Yomogida
May 19, 2006·Molecular and Cellular Endocrinology·Mukhtar AleemManjeet K Gill-Sharma
Sep 18, 2002·The Journal of Biological Chemistry·David M SelvaGeoffrey L Hammond

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