Effects of Endogenous Growth Differentiation Factor 9 on Activin A-Induced Inhibin B Production in Human Granulosa-Lutein Cells
نویسندگان
چکیده
منابع مشابه
Growth differentiation factor-9 stimulates inhibin production and activates Smad2 in cultured rat granulosa cells.
Ovarian inhibin production is stimulated by FSH and several TGFbeta family ligands including activins and bone morphogenetic proteins. Growth differentiation factor-9 (GDF-9) derived by the oocyte is a member of the TGFbeta/activin family, and we have previously shown that GDF-9 treatment stimulates ovarian inhibin-alpha content in explants of neonatal ovaries. However, little is known about GD...
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BACKGROUND We have demonstrated that growth differentiation factor 9 (GDF9) enhances activin A-induced inhibin β(B)-subunit mRNA levels in human granulosa-lutein (hGL) cells by regulating receptors and key intracellular components of the activin signaling pathway. However, we could not exclude its effects on follistatin (FST) and follistatin-like 3 (FSTL3), well recognized extracellular inhibit...
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BACKGROUND Ovarian granulosa cells are the predominant source of estradiol and progesterone biosynthesis in vivo. Rosiglitazone, a synthetic agonist of the peroxisome proliferator-activated receptor gamma (PPAR gamma), is applied as the treatment of insulin resistance including women with PCOS. The aim of the study was to investigate the direct effects of rosiglitazone on steroidogenesis and pr...
متن کاملRegulation of immunoreactive inhibin A and B secretion in cultured human granulosa-luteal cells by gonadotropins, activin A and insulin-like growth factor type-1 receptor.
Inhibins are gonadal glycoproteins with endocrine effects on pituitary FSH secretion and para/autocrine effects on ovarian and testicular function. The purpose of this study was to investigate the endocrine and para/autocrine regulation of inhibin A and inhibin B secretion in human ovarian granulosa-luteal cells. The cells were obtained from women undergoing in vitro fertilization, and the prim...
متن کاملCharacterization of recombinant human growth differentiation factor-9 signaling in ovarian granulosa cells.
Growth differentiation factor-9 (GDF9) is an oocyte secreted paracrine factor essential for mammalian ovarian folliculogenesis. Like other members of the transforming growth factor-beta (TGFbeta) superfamily, GDF9 is synthesized as a prepropeptide which needs processing by furin-like proteases to result in an active mature protein. We have previously characterized a preparation of unpurified re...
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ژورنال
عنوان ژورنال: The Journal of Clinical Endocrinology & Metabolism
سال: 2009
ISSN: 0021-972X,1945-7197
DOI: 10.1210/jc.2009-1047