2022
Impaired TIGIT expression on B cells drives circulating follicular helper T cell expansion in multiple sclerosis
Asashima H, Axisa PP, Pham THG, Longbrake EE, Ruff WE, Lele N, Cohen I, Raddassi K, Sumida TS, Hafler DA. Impaired TIGIT expression on B cells drives circulating follicular helper T cell expansion in multiple sclerosis. Journal Of Clinical Investigation 2022, 132: e156254. PMID: 36250467, PMCID: PMC9566906, DOI: 10.1172/jci156254.Peer-Reviewed Original ResearchConceptsRelapsing-remitting multiple sclerosisMemory B cellsCTfh cellsB cellsTIGIT expressionMultiple sclerosisT cellsFollicular helper T cellsHealthy age-matched controlsB-cell depletionT cell expansionHelper T cellsAge-matched controlsB cell functionB-cell pathwayDifferential gene expression signaturesTfh cellsDisease activityGene expression signaturesCell depletionCD40 ligandTranscription factor TCF4Disease pathogenesisImmune systemNew MRI
2009
RNA Interference Screen in Primary Human T Cells Reveals FLT3 as a Modulator of IL-10 Levels
Astier AL, Beriou G, Eisenhaure TM, Anderton SM, Hafler DA, Hacohen N. RNA Interference Screen in Primary Human T Cells Reveals FLT3 as a Modulator of IL-10 Levels. The Journal Of Immunology 2009, 184: 685-693. PMID: 20018615, PMCID: PMC3746748, DOI: 10.4049/jimmunol.0902443.Peer-Reviewed Original ResearchConceptsIL-10 levelsRegulatory type 1 (Tr1) cellsIL-10 secretionIL-10 productionT cellsType 1 cellsHuman T cellsIL-10Primary human T cellsPotent anti-inflammatory cytokineHematopoeitic growth factorsAnti-inflammatory cytokinesHuman primary immune cellsT cell functionActivated T cellsAddition of FLPrimary immune cellsT cell activationRegulatory cellsNovel regulatory feedback loopImmune cellsSuppressive activityCell activationFLT3Growth factor
2007
Polyspecificity of T cell and B cell receptor recognition
Wucherpfennig KW, Allen PM, Celada F, Cohen IR, De Boer R, Garcia KC, Goldstein B, Greenspan R, Hafler D, Hodgkin P, Huseby ES, Krakauer DC, Nemazee D, Perelson AS, Pinilla C, Strong RK, Sercarz EE. Polyspecificity of T cell and B cell receptor recognition. Seminars In Immunology 2007, 19: 216-224. PMID: 17398114, PMCID: PMC2034306, DOI: 10.1016/j.smim.2007.02.012.Peer-Reviewed Original Research
2004
PD-1 ligands, negative regulators for activation of naïve, memory, and recently activated human CD4+ T cells
Cai G, Karni A, Oliveira EM, Weiner HL, Hafler DA, Freeman GJ. PD-1 ligands, negative regulators for activation of naïve, memory, and recently activated human CD4+ T cells. Cellular Immunology 2004, 230: 89-98. PMID: 15598424, DOI: 10.1016/j.cellimm.2004.09.004.Peer-Reviewed Original ResearchConceptsPD-1 ligand blockadeT cellsPD-L1Myelin basic proteinPD-L2Human CD4Ex vivo dendritic cellsVivo dendritic cellsPD-1 ligandsPD-1 pathwayPrimary responseActivation of naïveNaive T cellsPD-1Dendritic cellsCytokine productionNormal donorsIFN-gammaSecondary responseCD4BlockadeHigh expressionNegative regulatory pathwaysInduced activationBasic protein
2003
Allelic Variation of MHC Structure Alters Peptide Ligands to Induce Atypical Partial Agonistic CD8+ T Cell Function
Lim DG, Slavik JM, Bourcier K, Smith KJ, Hafler DA. Allelic Variation of MHC Structure Alters Peptide Ligands to Induce Atypical Partial Agonistic CD8+ T Cell Function. Journal Of Experimental Medicine 2003, 198: 99-109. PMID: 12847139, PMCID: PMC2196091, DOI: 10.1084/jem.20021796.Peer-Reviewed Original ResearchConceptsT cell functionT cell clonesCell functionReactive T cell clonesCell clonesT cell responsesDifferent T cell responsesIndividual T cell clonesHLA-A2 moleculesAltered peptide ligandHLA-A2 peptideRecognition of MHCT cell receptorMHC-peptide complexesPolymorphic amino acidsFunctional outcomeHLA-A2Peptide ligandsAgonist functionMHC moleculesCell responsesEarly intracellularLong-term expressionCell receptorAntigen recognition
2002
Degeneracy, as opposed to specificity, in immunotherapy
Hafler DA. Degeneracy, as opposed to specificity, in immunotherapy. Journal Of Clinical Investigation 2002, 109: 581-584. PMID: 11877465, PMCID: PMC150898, DOI: 10.1172/jci15198.Peer-Reviewed Original Research
2001
Conserved CDR3 Regions in T-Cell Receptor (TCR) CD8+T Cells That Recognize the Tax11-19/HLA-A*0201 Complex in a Subject Infected with Human T-Cell Leukemia Virus Type 1: Relationship of T-Cell Fine Specificity and Major Histocompatibility Complex/Peptide/TCR Crystal Structure
Bourcier K, Lim D, Ding Y, Smith K, Wucherpfennig K, Hafler D. Conserved CDR3 Regions in T-Cell Receptor (TCR) CD8+T Cells That Recognize the Tax11-19/HLA-A*0201 Complex in a Subject Infected with Human T-Cell Leukemia Virus Type 1: Relationship of T-Cell Fine Specificity and Major Histocompatibility Complex/Peptide/TCR Crystal Structure. Journal Of Virology 2001, 75: 9836-9843. PMID: 11559817, PMCID: PMC114556, DOI: 10.1128/jvi.75.20.9836-9843.2001.Peer-Reviewed Original ResearchConceptsT cell clonesT cell receptorCDR3 regionTCR alphaHTLV-1-associated myelopathyTax11-19Beta chainHTLV-1-infected individualsT cell receptor repertoirePeripheral blood lymphocytesHuman T-cell leukemia virusHuman T-cell leukemia virus type 1T-cell leukemia virusVirus type 1TCR usageT cell fine specificityBlood lymphocytesT cellsImmunodominant epitopesReceptor repertoireType 1Fine specificitySimilar recognition patternTCR structureLeukemia virus
2000
Glatiramer acetate (Copaxone®) induces degenerate, Th2-polarized immune responses in patients with multiple sclerosis
Duda PW, Schmied MC, Cook SL, Krieger JI, Hafler DA. Glatiramer acetate (Copaxone®) induces degenerate, Th2-polarized immune responses in patients with multiple sclerosis. Journal Of Clinical Investigation 2000, 105: 967-976. PMID: 10749576, PMCID: PMC377485, DOI: 10.1172/jci8970.Peer-Reviewed Original ResearchMeSH KeywordsAdultAmino Acid SequenceCell DivisionCells, CulturedCross ReactionsEpitopes, T-LymphocyteFemaleGlatiramer AcetateHumansImmunodominant EpitopesImmunosuppressive AgentsInterferon-gammaInterleukin-5Leukocytes, MononuclearLigandsMaleMiddle AgedMolecular Sequence DataMultiple SclerosisMyelin Basic ProteinMyelin SheathPeptide FragmentsPeptidesTetanus ToxoidTh2 CellsConceptsT cell responsesMultiple sclerosisGlatiramer acetateT cellsAntigen-specific T cell responsesTh2-polarized immune responseCross-reactive T cellsAlters immune functionHuman autoimmune diseasesAcetate inducesCross-reactive responsesT cell receptorT cell linesImmune deviationMost patientsTh2 typeAutoimmune disordersTh2 cytokinesAutoimmune diseasesDaily injectionsIL-13IL-5Th2 cellsHealthy subjectsImmune response
1997
Autoantigen recognition by human CD8 T cell clones: enhanced agonist response induced by altered peptide ligands.
Dressel A, Chin JL, Sette A, Gausling R, Höllsberg P, Hafler DA. Autoantigen recognition by human CD8 T cell clones: enhanced agonist response induced by altered peptide ligands. The Journal Of Immunology 1997, 159: 4943-51. PMID: 9366420, DOI: 10.4049/jimmunol.159.10.4943.Peer-Reviewed Original ResearchConceptsT cell clonesCD8 T cell clonesTCR contact residuesHLA-A2Superagonist peptideCell clonesSelf-AgHLA-A2.1 binding motifsHuman autoimmune diseasesAltered peptide ligandMHC class IMyelin peptidesHLA-A2.1Autoimmune diseasesAutoantigen recognitionSecrete cytokinesEffector responsesLow MHCImmune responseAgonist responsesImmunodominant epitopesAgonist peptideAg recognitionContact residuesCytotoxic response