2006
Human regulatory T cells and their role in autoimmune disease
Baecher‐Allan C, Hafler DA. Human regulatory T cells and their role in autoimmune disease. Immunological Reviews 2006, 212: 203-216. PMID: 16903916, DOI: 10.1111/j.0105-2896.2006.00417.x.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAutoimmune DiseasesCD4 AntigensCell SeparationHumansImmunosuppression TherapyReceptors, Interleukin-2Self ToleranceT-Lymphocytes, RegulatoryConceptsRegulatory T cellsAutoimmune diseasesSelf-reactive cellsT cellsHealthy individualsHuman natural regulatory T cellsSelf-reactive T cellsNatural regulatory T cellsHuman regulatory T cellsPathologic T cellsReduced inhibitory functionSpecific autoimmune diseasesT cell populationsMature T cellsT cell maturationNon-responsive stateRegulatory cellsNatural CD4Peripheral circulationImmune systemPatientsDiseaseInhibitory functionNumber of mechanismsCellsMHC Class II Expression Identifies Functionally Distinct Human Regulatory T Cells
Baecher-Allan C, Wolf E, Hafler DA. MHC Class II Expression Identifies Functionally Distinct Human Regulatory T Cells. The Journal Of Immunology 2006, 176: 4622-4631. PMID: 16585553, DOI: 10.4049/jimmunol.176.8.4622.Peer-Reviewed Original ResearchConceptsContact-dependent suppressionRegulatory T cellsT cellsCD4 cellsDR expressionFunctional MHC class II moleculesRegulatory T cell populationHuman regulatory T cellsMHC class II determinantsIL-10 secretionClass II determinantsMHC class II moleculesHigh Foxp3 expressionMHC-II expressionEarly IL-4T cell populationsT cell nonresponsivenessClass II moleculesEx vivo expressionVivo expressionHuman CD4 cellsSubpopulations CD4Treg populationFoxp3 expressionIL-4
2005
Letter to the Editor
Baecher-Allan CM, Hafler DA. Letter to the Editor. Clinical Immunology 2005, 117: 192. PMID: 16214081, DOI: 10.1016/j.clim.2005.08.008.Peer-Reviewed Original ResearchFunctional analysis of highly defined, FACS-isolated populations of human regulatory CD4+CD25+ T cells
Baecher-Allan C, Wolf E, Hafler DA. Functional analysis of highly defined, FACS-isolated populations of human regulatory CD4+CD25+ T cells. Clinical Immunology 2005, 115: 10-18. PMID: 15870015, DOI: 10.1016/j.clim.2005.02.018.Peer-Reviewed Original ResearchMeSH KeywordsAntigens, CDAntigens, Differentiation, B-LymphocyteCD4-Positive T-LymphocytesCD58 AntigensCoculture TechniquesEnzyme-Linked Immunosorbent AssayFlow CytometryHumansImmunoglobulin GImmunophenotypingLeukocyte Common AntigensL-SelectinReceptors, Interleukin-2Receptors, TransferrinT-Lymphocyte SubsetsConceptsCD4 T cellsT cellsTreg cellsRegulatory cellsTotal CD4 T cellsHuman regulatory cellsRegulatory T cellsAutoimmune disease modelsImportance of CD4Regulatory populationImmune homeostasisCD25Suppressive activityCD4Human regulatorySpecific subpopulationsDisease modelsSignificant proportionMiceVivoMurine cellsPotential heterogeneityFuture studiesCellsHuman diseases
2004
Suppressor T Cells in Human Diseases
Baecher-Allan C, Hafler DA. Suppressor T Cells in Human Diseases. Journal Of Experimental Medicine 2004, 200: 273-276. PMID: 15280423, PMCID: PMC2211973, DOI: 10.1084/jem.20040812.Peer-Reviewed Original ResearchMeSH KeywordsArthritis, RheumatoidCD4 AntigensHIV InfectionsHumansMultiple SclerosisReceptors, Interleukin-2T-Lymphocytes, RegulatoryLoss of Functional Suppression by CD4+CD25+ Regulatory T Cells in Patients with Multiple Sclerosis
Viglietta V, Baecher-Allan C, Weiner HL, Hafler DA. Loss of Functional Suppression by CD4+CD25+ Regulatory T Cells in Patients with Multiple Sclerosis. Journal Of Experimental Medicine 2004, 199: 971-979. PMID: 15067033, PMCID: PMC2211881, DOI: 10.1084/jem.20031579.Peer-Reviewed Original ResearchConceptsRegulatory T cellsMultiple sclerosisT cellsRegulatory T cell functionActivity of murineSpontaneous autoimmune diseaseT cell functionSingle cell cloning experimentsPeripheral toleranceCell cloning experimentsAutoimmune diseasesPeripheral bloodInflammatory diseasesHealthy donorsHuman CD4Effector functionsNormal controlsPatientsFunctional suppressionCell functionSignificant decreaseSclerosisProtein peptidesDiseaseActive suppressionHuman CD4+CD25+ regulatory T cells
Baecher-Allan C, Viglietta V, Hafler DA. Human CD4+CD25+ regulatory T cells. Seminars In Immunology 2004, 16: 89-98. PMID: 15036232, DOI: 10.1016/j.smim.2003.12.005.Peer-Reviewed Original ResearchConceptsRegulatory T cellsT reg cellsT cellsT reg populationT cell subsetsT-reg functionHuman peripheral bloodIL-10Lymph nodesPeripheral bloodCell subsetsFunctional outcomeCord bloodTCR stimuliRapid effectsCellular compositionTCR signalsPotential involvementActivation stateStrong stimulationMiceBloodDisparate findingsCellsCulture conditions
2003
CD4+CD25+ Regulatory Cells from Human Peripheral Blood Express Very High Levels of CD25 Ex Vivo
Baecher‐Allan C, Brown JA, Freeman GJ, Hafler DA. CD4+CD25+ Regulatory Cells from Human Peripheral Blood Express Very High Levels of CD25 Ex Vivo. Novartis Foundation Symposia 2003, 252: 67-91. PMID: 14609213, DOI: 10.1002/0470871628.ch6.Peer-Reviewed Original ResearchConceptsT cellsRegulatory cellsPD-1/PD-L1 interactionLigand PD-L1Responder T cellsPD-L1 interactionContact-dependent mannerCo-culture assaysCTLA4 blockadeRegulatory populationPD-1PD-L1HLA-DRMultiple surface antigensCytokine secretionCD45RA expressionSurface antigenEx vivoLevel of expressionModest inductionSuppressive characteristicsFunctional activityHigh levelsCD25CD45ROIsolation and functional characterization of regulatory CD25brightCD4+ T cells from the target organ of patients with rheumatoid arthritis
Cao D, Malmström V, Baecher‐Allan C, Hafler D, Klareskog L, Trollmo C. Isolation and functional characterization of regulatory CD25brightCD4+ T cells from the target organ of patients with rheumatoid arthritis. European Journal Of Immunology 2003, 33: 215-223. PMID: 12594850, DOI: 10.1002/immu.200390024.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedArthritis, RheumatoidCD4-Positive T-LymphocytesFemaleHumansInflammationJointsMiddle AgedReceptors, Interleukin-2Synovial FluidConceptsT cellsRegulatory cellsRheumatoid arthritisSynovial fluidTarget organsSuch regulatory T cellsFunctional regulatory cellsInflamed knee jointsPathological T cellsActive rheumatoid arthritisAutologous T cellsRegulatory T cellsExperimental animal modelsPeripheral blood originAutoimmune manifestationsRA patientsAutoimmune diseasesPeripheral bloodSame patientAnimal modelsPatientsKnee jointBlood originDiseaseArthritis
2002
Inhibition of Human CD4+CD25+high Regulatory T Cell Function
Baecher-Allan C, Viglietta V, Hafler DA. Inhibition of Human CD4+CD25+high Regulatory T Cell Function. The Journal Of Immunology 2002, 169: 6210-6217. PMID: 12444126, DOI: 10.4049/jimmunol.169.11.6210.Peer-Reviewed Original ResearchMeSH KeywordsAntigensCD4-Positive T-LymphocytesCoculture TechniquesCytokinesGlucocorticoid-Induced TNFR-Related ProteinHumansImmune ToleranceInterleukin-10Lymphocyte ActivationModels, ImmunologicalReceptors, Interleukin-2Receptors, Nerve Growth FactorReceptors, Tumor Necrosis FactorSignal TransductionT-Lymphocyte SubsetsTransforming Growth Factor betaConceptsAutoreactive T cellsT cellsRegulatory cellsRegulatory T cell functionInflammatory immune responseT cell functionStrength of stimulationPathologic responseInhibition of humanMicrobial AgsResponder cellsImmune responseEffector functionsTCR stimuliTime pointsCell functionTCR signalsPotent regulatorDifferential activationExtent of suppressionStimulationActivationCellsSuppressionStimuli
2001
CD4+CD25high Regulatory Cells in Human Peripheral Blood
Baecher-Allan C, Brown J, Freeman G, Hafler D. CD4+CD25high Regulatory Cells in Human Peripheral Blood. The Journal Of Immunology 2001, 167: 1245-1253. PMID: 11466340, DOI: 10.4049/jimmunol.167.3.1245.Peer-Reviewed Original ResearchMeSH KeywordsAbataceptAntigens, CDAntigens, DifferentiationB7-1 AntigenB7-H1 AntigenBlood ProteinsCD4 AntigensCD4-Positive T-LymphocytesCells, CulturedCoculture TechniquesCTLA-4 AntigenHLA-DR AntigensHumansImmunoconjugatesImmunosuppressive AgentsInterleukin-2KineticsLeukocyte Common AntigensLymphocyte ActivationLymphocyte CountMembrane GlycoproteinsPeptidesReceptors, Antigen, T-CellReceptors, Interleukin-2RNA, MessengerSignal TransductionT-Lymphocyte SubsetsConceptsRegulatory T cellsRegulatory cellsT cellsPD-1/PD-L1Regulatory CD4 T cellsAnti-CD3 stimulusCD4 T cellsHuman autoimmune disordersMultiorgan autoimmune diseasePeripheral lymphoid tissuesRegulatory cell functionIL-2 receptorPD-L1 receptorCirculation of humansHuman peripheral bloodContact-dependent mannerNeonatal day 3B7 pathwayPD-L1Regulatory populationAutoimmune disordersAutoimmune diseasesPeripheral bloodResponder cellsIL-2
1999
Direct analysis of viral-specific CD8+ T cells with soluble HLA-A2/Tax11-19 tetramer complexes in patients with human T cell lymphotropic virus-associated myelopathy.
Bieganowska K, Höllsberg P, Buckle G, Lim D, Greten T, Schneck J, Altman J, Jacobson S, Ledis S, Hanchard B, Chin J, Morgan O, Roth P, Hafler D. Direct analysis of viral-specific CD8+ T cells with soluble HLA-A2/Tax11-19 tetramer complexes in patients with human T cell lymphotropic virus-associated myelopathy. The Journal Of Immunology 1999, 162: 1765-71. PMID: 9973440, DOI: 10.4049/jimmunol.162.3.1765.Peer-Reviewed Original ResearchMeSH KeywordsAdultB7-1 AntigenCD28 AntigensCD8-Positive T-LymphocytesFemaleGene Products, taxHLA-A2 AntigenHuman T-lymphotropic virus 1HumansLymphocyte ActivationMaleMiddle AgedParaparesis, Tropical SpasticPeptide FragmentsPhenotypeProtein ConformationReceptors, Antigen, T-Cell, alpha-betaReceptors, ChemokineReceptors, Interleukin-2SolubilityConceptsT cellsIL-2RMHC class I tetramersHuman T-cell lymphotropic virusViral-specific CD8Class I tetramersProgressive neurologic diseaseDifferent chemokine receptorsHLA-A2 alleleCentral nervous systemTCR Vbeta chainsReactive CD8TCR usageInflammatory infiltrateVbeta chainsChemokine receptorsNeurologic diseaseImmune responseCD8Lymphotropic virusMyelopathyNervous systemPatientsHTLVClonal expansion
1993
Increased Protein Kinase C Activity in Human Memory T Cells
Höllsberg P, Melinek J, Benjamin D, Hafler D. Increased Protein Kinase C Activity in Human Memory T Cells. Cellular Immunology 1993, 149: 170-179. PMID: 8099849, DOI: 10.1006/cimm.1993.1145.Peer-Reviewed Original ResearchConceptsCD26 T cellsMemory T cellsT cell populationsMemory T cell populationsT cellsT cell receptorProliferative responseCell populationsPeripheral blood T cellsHuman memory T cellsMemory T cell functionCD26 antigen expressionT-cell surface antigensPKC activityBlood T cellsT cell functionTCR/CD3 pathwayDifferentiated T cellsCell surface antigensCD26 mAbCD26- subsetAntigen challengeAntigen expressionCD26 antigenCD26 expression
1992
Characterization of HTLV-I in vivo infected T cell clones. IL-2-independent growth of nontransformed T cells.
Höllsberg P, Wucherpfennig KW, Ausubel LJ, Calvo V, Bierer BE, Hafler DA. Characterization of HTLV-I in vivo infected T cell clones. IL-2-independent growth of nontransformed T cells. The Journal Of Immunology 1992, 148: 3256-63. PMID: 1374452, DOI: 10.4049/jimmunol.148.10.3256.Peer-Reviewed Original ResearchMeSH KeywordsAntibodies, MonoclonalAntigens, Differentiation, T-LymphocyteBase SequenceCD3 ComplexClone CellsCyclosporineHTLV-I InfectionsHumansInterleukin-2Lymphocyte ActivationMolecular Sequence DataPolyenesReceptors, Antigen, T-CellReceptors, Interleukin-2RNA, MessengerSirolimusTacrolimusT-LymphocytesConceptsT cell clonesClonal proliferationCell clonesIL-2 receptor signalLymphotrophic virus type ICharacterization of HTLVInfected T cell clonesHTLV-I provirusBlood of subjectsVirus type IT cell activationAbsence of mitogensIL-2-mediated signalingIL-2-independent growthSite of actionMononuclear cellsIL-2Polymerase chain reactionT cellsExogenous growth factorsPeriodic restimulationFK-506Cell activationHTLVP55 chain
1990
FcR-mediated crosslinking of Ta1 (CDw26) induces human T lymphocyte activation
Dang N, Hafler D, Schlossman S, Breitmeyer J. FcR-mediated crosslinking of Ta1 (CDw26) induces human T lymphocyte activation. Cellular Immunology 1990, 125: 42-57. PMID: 2152856, DOI: 10.1016/0008-8749(90)90061-u.Peer-Reviewed Original ResearchConceptsCD3/T cell receptor complexHuman T lymphocyte activationT lymphocyte activationT cellsT cell receptor complexCell receptor complexLymphocyte activationPeripheral blood T cellsMonoclonal antibodiesCytolytic effector functionExogenous IL-2Blood T cellsIL-2 receptorPositive accessory cellsT cell clonesT cell activationReceptor complexHuman T lymphocytesT cell regulatory networkAnti-Ta1Recall antigensPeripheral bloodIL-2T lymphocytesEffector functions
1989
Inflammatory cerebrospinal fluid t cells have activation requirements characteristic of cd4+cd45ra‐ t cells
Chofflon M, González V, Weiner H, Hafler D. Inflammatory cerebrospinal fluid t cells have activation requirements characteristic of cd4+cd45ra‐ t cells. European Journal Of Immunology 1989, 19: 1791-1795. PMID: 2479560, DOI: 10.1002/eji.1830191005.Peer-Reviewed Original ResearchConceptsCSF T cellsPhorbol myristate acetateMononuclear cellsCSF mononuclear cellsT cellsCerebrospinal fluidCerebrospinal fluid T cellsCSF of subjectsProtein kinase CCD3/T cell receptor complexInflammatory brain diseasesBlood mononuclear cellsT cell populationsSorted T cellsInterleukin-2 receptorInterleukin-2 secretionCD2 activation pathwayT cell receptor complexKinase CInflammatory compartmentMultiple sclerosisCNS diseaseCell receptor complexImmune responseNormal subjects
1985
Investigation of in vivo activated T cells in multiple sclerosis and inflammatory central nervous system diseases
Hafler DA, Hemler ME, Christenson L, Williams JM, Shapiro HM, Strom TB, Strominger JL, Weiner HL. Investigation of in vivo activated T cells in multiple sclerosis and inflammatory central nervous system diseases. Clinical Immunology 1985, 37: 163-171. PMID: 3930113, DOI: 10.1016/0090-1229(85)90147-3.Peer-Reviewed Original ResearchMeSH KeywordsAntibodies, MonoclonalAntigens, SurfaceDNAEncephalitisFlow CytometryHumansLymphocyte ActivationMultiple SclerosisReceptors, ImmunologicReceptors, Interleukin-2T-LymphocytesConceptsT cellsActivated T cellsActivation antigensMultiple sclerosisInflammatory central nervous system diseasesPeripheral blood T cellsCentral nervous system diseaseActive multiple sclerosisSystemic immune activationGroup of patientsMultiple sclerosis patientsBlood T cellsEarly activation antigenNervous system diseasesAbnormal immunologic activityMultiple differentiation stagesMS patientsSclerosis patientsViral encephalitisImmune activationPeripheral bloodNeurologic diseaseImmunologic activitySystem diseasesNormal controls