Effects of Activin A on the Activities of the Mouse Peritoneal Macrophages-中国期刊网

摘要 ActivinAisakindofpre-inflammatoryfactorthatbelongstothetransforminggrowthfactor-β(TGF-β)superfamily.ToinvestigatetheeffectandmechanismofactivinAontheactivitiesofmousemacrophages,thesecretionofNOinthesupernatantofculturedmouseperitonealmacrophageswasexaminedbyNOassaykit,andtheexpressionofiNOS,ActRIIAandARIP2mRNAinmouseperitonealmacrophageswasanalyzedbyRT-PCR.TheresultsshowedthatactivinAstimulatedthesecretionofNOandtheexpressionofiNOSmRNAinnon-activatedmousemacrophagesinatime-anddose-dependentmanner.Incontrast,activinAinthesameconcentrationinhibitedthesecretionofNOinLPS-activatedmousemacrophagesinadose-dependentmanner.ActRIIAwashighlyexpressedonmacrophages,andactivinAupregulatedtheActRIIAmRNAexpressioninmacrophages.Anti-ActRIIAantibodycanblockthesecretionofNOfromthemacrophagesstimulatedbyactivinA.Furthermore,RT-PCRanalysisrevealedthatactivinAenhancedtheARIP2mRNAexpressioninmacrophages.TheseresultsindicatedthatActivinAmaybeaweakactivatorcomparedwithLPStomousemacrophages,andactivinAmaymodulatethesecretionofNOthroughActRIIA-ARIP2signalpathwayinmousemacrophages.

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Effects of Activin A on the Activities of the Mouse Peritoneal Macrophages

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Effects of Activin A on the Activities of the Mouse Peritoneal Macrophages

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