2005
Naive CD4+ T Cells from Lupus-Prone Fas-Intact MRL Mice Display TCR-Mediated Hyperproliferation Due to Intrinsic Threshold Defects in Activation
Zielinski CE, Jacob SN, Bouzahzah F, Ehrlich BE, Craft J. Naive CD4+ T Cells from Lupus-Prone Fas-Intact MRL Mice Display TCR-Mediated Hyperproliferation Due to Intrinsic Threshold Defects in Activation. The Journal Of Immunology 2005, 174: 5100-5109. PMID: 15814741, DOI: 10.4049/jimmunol.174.8.5100.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntigen PresentationAutoimmunityCalcium SignalingCD4-Positive T-LymphocytesCell ProliferationColumbidaeCytochromes cDendritic CellsFas ReceptorGenes, DominantInterleukin-2Lupus Erythematosus, SystemicLymphocyte ActivationMiceMice, Inbred MRL lprMice, Inbred StrainsMice, KnockoutMice, TransgenicPhenotypeReceptor-CD3 Complex, Antigen, T-CellReceptors, Antigen, T-CellSignal TransductionConceptsNaive CD4T cellsSelf-AgAutoreactive T cell activationMRL T cellsT cell toleranceF1 T cellsProximal defectsAnti-CD3 stimulationClass II MHCIL-2 productionT cell activationWild-type CD4Pigeon cytochrome cCell calcium signalingDendritic cellsControl miceMurine lupusObserved hyperactivityII MHCMRL miceIntracellular calciumLow thresholdPeptide AgCD4
2004
Activation of Naive CD4+ T Cells In Vivo by a Self-Peptide Mimic: Mechanism of Tolerance Maintenance and Preservation of Immunity
Choi JY, Craft J. Activation of Naive CD4+ T Cells In Vivo by a Self-Peptide Mimic: Mechanism of Tolerance Maintenance and Preservation of Immunity. The Journal Of Immunology 2004, 172: 7399-7407. PMID: 15187117, DOI: 10.4049/jimmunol.172.12.7399.Peer-Reviewed Original ResearchConceptsSelf peptide-MHC complexesT cellsTolerance maintenanceCostimulatory signalsMHC complexesNaive T cellsTCR engagementIntrathymic selectionNaive CD4Peripheral repertoireStrong costimulationForeign AgsAgonist peptideMicrobial challengeSurviving cellsNovel mechanismCellsVivoSubsequent encountersLow affinityPathogen challengeDividing cellsCD4CD69Restimulation