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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2011-5-9
pubmed:abstractText
FSH plays a critical role in granulosa cell (GC) proliferation and steroidogenesis through modulation by factors including bone morphogenetic proteins family, which belongs to transforming growth factor ? (TGFB) superfamily. TGFBs are the key factors in maintaining cell growth and differentiation in ovaries. However, the interaction of FSH and TGFB on the GCs' proliferation and steroidogenesis remains to be elucidated. In this study, we have investigated the role of SMAD4, a core molecule mediating the intracellular TGFB/SMAD signal transduction pathway, in FSH-mediated proliferation and steroidogenesis of porcine GCs. In this study, SMAD4 was knocked down using interference RNA in porcine GCs. Our results showed that SMAD4-siRNA causes specific inhibition of SMAD4 mRNA and protein expression after transfection. Knockdown of SMAD4 significantly inhibited FSH-induced porcine GC proliferation and estradiol production and changed the expression of cyclin D2, CDK2, CDK4, CYP19a1, and CYP11a1. Thus, these observations establish an important role of SMAD4 in the regulation of the response of porcine GCs to FSH.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1741-7899
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
141
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
643-51
pubmed:meshHeading
pubmed-meshheading:21292728-Animals, pubmed-meshheading:21292728-Aromatase, pubmed-meshheading:21292728-Cell Proliferation, pubmed-meshheading:21292728-Cells, Cultured, pubmed-meshheading:21292728-Cholesterol Side-Chain Cleavage Enzyme, pubmed-meshheading:21292728-Down-Regulation, pubmed-meshheading:21292728-Estradiol, pubmed-meshheading:21292728-Female, pubmed-meshheading:21292728-Follicle Stimulating Hormone, pubmed-meshheading:21292728-Genes, cdc, pubmed-meshheading:21292728-Granulosa Cells, pubmed-meshheading:21292728-Progesterone, pubmed-meshheading:21292728-RNA Interference, pubmed-meshheading:21292728-Receptors, FSH, pubmed-meshheading:21292728-Signal Transduction, pubmed-meshheading:21292728-Smad4 Protein, pubmed-meshheading:21292728-Swine, pubmed-meshheading:21292728-Transfection
pubmed:year
2011
pubmed:articleTitle
Interference RNA-based silencing of endogenous SMAD4 in porcine granulosa cells resulted in decreased FSH-mediated granulosa cells proliferation and steroidogenesis.
pubmed:affiliation
College of Animal Science and Technology, Nanjing Agricultural University, Weigang 1, Nanjing 210095, People's Republic of China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't