1999
HTLV-I-Infected T Cells Evade the Antiproliferative Action of IFN-β
Smith D, Buckle G, Hafler D, Frank D, Höllsberg P. HTLV-I-Infected T Cells Evade the Antiproliferative Action of IFN-β. Virology 1999, 257: 314-321. PMID: 10329542, DOI: 10.1006/viro.1999.9679.Peer-Reviewed Original ResearchConceptsT cell clonesIFN-betaT cellsAntiproliferative actionHuman T-cell lymphotropic virus type IMyelopathy/tropical spastic paraparesisLymphotropic virus type INormal immunoregulatory mechanismsInnate immune defense mechanismsHost T cellsExogenous IL-2Tropical spastic paraparesisT cell proliferationImmune defense mechanismsVirus type IT cell activationPathogenesis of HTLVImmunoregulatory mechanismsSpastic paraparesisIL-2Phosphorylation of STAT1IFN-gammaViral infectionHigh dosesHTLV
1997
Variable Immortalizing Potential and Frequent Virus Latency in Blood-Derived T-Cell Clones Infected With Human T-Cell Leukemia Virus Type I
Richardson JH, Höllsberg P, Windhagen A, Child LA, Hafler DA, Lever A. Variable Immortalizing Potential and Frequent Virus Latency in Blood-Derived T-Cell Clones Infected With Human T-Cell Leukemia Virus Type I. Blood 1997, 89: 3303-3314. PMID: 9129036, DOI: 10.1182/blood.v89.9.3303.Peer-Reviewed Original ResearchConceptsT cell clonesHuman T-cell leukemia virus type IVirus type IT cellsSpontaneous proliferationFresh peripheral blood lymphocytesGag p24 productionCD4 T cellsInfected cellsPeripheral blood lymphocytesHTLV-I provirusViral mRNA expressionType IP24 productionVirus-cell interactionsIL-6Virus carriersInterleukin-6Blood lymphocytesHost cell factorsCytokine mRNAVirus latencyVirus-producing clonesHTLVMRNA expression
1996
Activation of human T cell lymphotropic virus type I-infected T cells is independent of B7 costimulation.
Scholz C, Freeman GJ, Greenfield EA, Hafler DA, Höllsberg P. Activation of human T cell lymphotropic virus type I-infected T cells is independent of B7 costimulation. The Journal Of Immunology 1996, 157: 2932-8. PMID: 8816399, DOI: 10.4049/jimmunol.157.7.2932.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibodies, MonoclonalAntigen-Presenting CellsAntigens, CDAutoimmunityB7-1 AntigenB7-2 AntigenBase SequenceCD28 AntigensCHO CellsClone CellsCricetinaeCricetulusEnzyme ActivationHLA-DR AntigensHLA-DRB1 ChainsHuman T-lymphotropic virus 1HumansInterferon-gammaInterleukin-4Interleukin-5Janus Kinase 3Lymphocyte ActivationMembrane GlycoproteinsMolecular Sequence DataMyelin Basic ProteinProtein-Tyrosine KinasesSignal TransductionT-Lymphocyte SubsetsTransfectionConceptsHuman T-cell lymphotropic virus type ILymphotropic virus type IB7 costimulationT cell clonesT cellsB7-1Virus type IIL-4IL-5B7-2IFN-gammaAutoreactive T cell responsesCell clonesAg-specific signalAutoimmune-like diseaseT cell responsesAutoreactive T cellsHTLV-I infectionB7-2 costimulationB7-2 moleculesUninfected T cellsType IAutoimmune responseB7 expressionCytokine secretionHTLV-I-induced T-cell activation.
Buckle GJ, Hafler DA, Höllsberg P. HTLV-I-induced T-cell activation. JAIDS Journal Of Acquired Immune Deficiency Syndromes 1996, 13 Suppl 1: s107-13. PMID: 8797712, DOI: 10.1097/00042560-199600001-00018.Peer-Reviewed Original ResearchConceptsT cell activationT cellsUninfected T cellsT cell interactionsMyelopathy/tropical spastic paraparesisHuman T-cell lymphotropic virus type ILymphotropic virus type ITropical spastic paraparesisInfected T cellsT cell clonesIL-2 productionInterleukin-2 productionVirus type ISpastic paraparesisSpontaneous proliferationCD28 pathwayGeneralized activationCostimulatory signalsImmune systemSeparate mechanismsHTLVProlonged stateType IActivationCells
1995
Differential activation of proliferation and cytotoxicity in human T-cell lymphotropic virus type I Tax-specific CD8 T cells by an altered peptide ligand.
Höllsberg P, Weber WE, Dangond F, Batra V, Sette A, Hafler DA. Differential activation of proliferation and cytotoxicity in human T-cell lymphotropic virus type I Tax-specific CD8 T cells by an altered peptide ligand. Proceedings Of The National Academy Of Sciences Of The United States Of America 1995, 92: 4036-4040. PMID: 7732026, PMCID: PMC42097, DOI: 10.1073/pnas.92.9.4036.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceB-LymphocytesBinding SitesCD8-Positive T-LymphocytesCell DivisionCell Line, TransformedCytotoxicity, ImmunologicGene Products, taxHerpesvirus 4, HumanHLA-A2 AntigenHuman T-lymphotropic virus 1HumansKineticsLymphocyte ActivationMolecular Sequence DataMutagenesis, Site-DirectedPoint MutationThymidineConceptsCD8 T cellsInterleukin-2 secretionT cell receptor contact residuesT cellsReceptor contact residuesCD8 T cell clonesCytotoxic CD8 T cellsMyelopathy/tropical spastic paraparesisT cell-mediated cytotoxicityHAM/TSPTropical spastic paraparesisT cell clonesAltered peptide ligandT cell-mediated cytolysisHuman T-cell leukemia virus type IT cell stimulationVirus type IAnalog peptidesHLA-A2Spastic paraparesisNeurologic diseaseSecondary stimulationSecondary responsePeptide antigensPrimary activationWhat is the pathogenesis of human T‐cell lymphotropic virus type I–associated myelopathy/tropical spastic paraparesis?
Höllsberg P, Hafler D. What is the pathogenesis of human T‐cell lymphotropic virus type I–associated myelopathy/tropical spastic paraparesis? Annals Of Neurology 1995, 37: 143-145. PMID: 7847855, DOI: 10.1002/ana.410370203.Peer-Reviewed Original Research
1994
Human T cell lymphotropic virus type I-induced T cell activation. Resistance to TGF-beta 1-induced suppression.
Höllsberg P, Ausubel LJ, Hafler DA. Human T cell lymphotropic virus type I-induced T cell activation. Resistance to TGF-beta 1-induced suppression. The Journal Of Immunology 1994, 153: 566-73. PMID: 8021495, DOI: 10.4049/jimmunol.153.2.566.Peer-Reviewed Original ResearchConceptsT cell clonesT cell activationHuman T-cell lymphotropic virus type ILymphotropic virus type IVirus type ICell activationCell clonesT cellsCD3/TCR complexHTLV-I myelopathyT cell proliferationType IImmune regulationHTLVHyperphosphorylation of pRbProductive infectionCell cycle progressionCell proliferationTCR complexPatientsG1 phaseInfectionSingle cell cloningCycle progressionActivation
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, MessengerSirolimusT-LymphocytesTacrolimusConceptsT 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 chainT-cell activation by autologous human T-cell leukemia virus type I-infected T-cell clones.
Wucherpfennig KW, Höllsberg P, Richardson JH, Benjamin D, Hafler DA. T-cell activation by autologous human T-cell leukemia virus type I-infected T-cell clones. Proceedings Of The National Academy Of Sciences Of The United States Of America 1992, 89: 2110-2114. PMID: 1549569, PMCID: PMC48606, DOI: 10.1073/pnas.89.6.2110.Peer-Reviewed Original ResearchConceptsIntercellular cell adhesion moleculeBlood T cellsT cell clonesT cell activationIL-2 receptorT cellsActivated T cellsHuman T-cell leukemia virus type I (HTLV-I) carriersSuch activated T cellsHAM/TSP patientsMyelopathy/tropical spastic paraparesisClass II major histocompatibility complex moleculesHAM/TSPChronic inflammatory diseaseExogenous interleukin-2HTLV-I infectionTropical spastic paraparesisMajor histocompatibility complex moleculesHuman T-cell leukemia virus type IVirus type IHistocompatibility complex moleculesCD2/LFATSP patientsSpastic paraparesisSpontaneous proliferation