Triptolide inhibits IL-12 production and T cell-stimulatory capacity of dendritic cells-中国期刊网

摘要 Triptolideisanatural,biologicallyactivecomponentderivedfromChineseherbTripterygiumWilfordiiHookF.(TWHF)whichiseffectiveintheclinicaltreatmentofautoimmunediseases,however,themechanismsbywhichtriptolideexertsimmunosuppressionremainfullyunderstood.Theprimaryofthisstudyistodemonstratewhethertriptolidecanaffectphenotype,cytokineproductionandallogeneicTcell-stimulatorycapacityofdendriticcells(DCs)whicharecriticalintheinductionofimmuneresponseortolerance.PhenotypicanalysisshowthattriptolidedoesnotaffecttheexpressionofMHC(Ia^b),CD80,CD86andCD40ofDCstimulatedwithornotLPS,butsignificantlyinhibitsIL12p70productionbyDCinadose-dependentmanner.Triptolide-treatedDCsexhibitareducedcapacitytostimulateproliferationofallogeneicCD4^+Tlymphocytes.Therefore,triptolide-mediatedimmunosuppressionmaydue,inpart,totheinhibitionofIL-12p70productionandimpairmentofallogeneicTcell-stimulatorycapacityofDCs.Ourresultsmayprovideapossiblemechanisticexplanationfortheeffectivenessoftriptolideinthetreatmentofautoimmunediseases.

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Triptolide inhibits IL-12 production and T cell-stimulatory capacity of dendritic cells

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Triptolide inhibits IL-12 production and T cell-stimulatory capacity of dendritic cells

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