2009
Epicutaneous Immunization with Protein Antigen in the Presence of TLR4 Ligand Induces TCRαβ+CD4+ T Contrasuppressor Cells That Reverse Skin-Induced Suppression of Th1-Mediated Contact Sensitivity
Ptak W, Majewska M, Bryniarski K, Ptak M, Lobo FM, Zając K, Askenase PW, Szczepanik M. Epicutaneous Immunization with Protein Antigen in the Presence of TLR4 Ligand Induces TCRαβ+CD4+ T Contrasuppressor Cells That Reverse Skin-Induced Suppression of Th1-Mediated Contact Sensitivity. The Journal Of Immunology 2009, 182: 837-850. PMID: 19124727, DOI: 10.4049/jimmunol.182.2.837.Peer-Reviewed Original ResearchMeSH KeywordsAdministration, CutaneousAnimalsCD4-Positive T-LymphocytesCells, CulturedContraindicationsDermatitis, ContactImmune ToleranceImmunizationLigandsLipopolysaccharidesMaleMiceMice, Inbred BALB CMice, Inbred CBAMice, KnockoutMice, TransgenicPatch TestsReceptors, Antigen, T-Cell, alpha-betaSkinTh1 CellsToll-Like Receptor 4TrinitrobenzenesConceptsEpicutaneous immunizationEffector cellsIL-12Effector phaseT cellsIFN-gammaTC cellsContrasuppressor T cellsCS effector cellsIL-12 neutralizationSkin-induced suppressionContact sensitivity reactionTh1 effector cellsTLR4 ligand LPSMechanism of actionEC immunizationSuppressor CD4Th1 CD4Regulatory cellsRIL-12TLR4 ligandIL-6Contact sensitivityLigand LPSINF-gamma
1996
Delayed-type hypersensitivity in mast cell-deficient mice: dependence on platelets for expression of contact sensitivity.
Geba GP, Ptak W, Anderson GM, Paliwal V, Ratzlaff RE, Levin J, Askenase PW. Delayed-type hypersensitivity in mast cell-deficient mice: dependence on platelets for expression of contact sensitivity. The Journal Of Immunology 1996, 157: 557-65. PMID: 8752902, DOI: 10.4049/jimmunol.157.2.557.Peer-Reviewed Original ResearchConceptsMast cell-deficient miceCell-deficient miceDelayed-type hypersensitivityContact sensitivityPlatelet depletionMast cellsCS responsesT cell-mediated immune responsesMast cell-deficient strainsDelayed-type hypersensitivity responseT cell-mediated responsesCell-mediated immune responsesTissue levelsCutaneous sensitivity responsesVasoactive amine serotoninCell-mediated responsesLocal mast cellsMast cell numbersNormal mast cell numbersHypersensitivity responseCutaneous responseImmunologic evidenceBeige miceImmune responseAmine serotonin
1977
Studies on the role of the thymus and T cells in the in vivo suppression of delayed hypersensitivity (desensitization): radiosensitivity of the mechanism inducing nonspecific anergy.
Thestrup-Pedersen K, Dwyer J, Askenase P. Studies on the role of the thymus and T cells in the in vivo suppression of delayed hypersensitivity (desensitization): radiosensitivity of the mechanism inducing nonspecific anergy. The Journal Of Immunology 1977, 118: 1665-71. PMID: 300755, DOI: 10.4049/jimmunol.118.5.1665.Peer-Reviewed Original ResearchConceptsT cellsDelayed hypersensitivitySuppression of delayed hypersensitivityDoses of whole-body irradiationNonspecific desensitizationMature T cellsWhole-body irradiationMono-nuclear cellsIn vivo suppressionThymic weightImmunoregulatory mechanismsPeripheral bloodRadiosensitive cellsAssociated with 1AnergySmall dosesDecreased responseGuinea pigsSkin sitesDesensitizationAntigenDesensitized stateConcanavalin AHypersensitivityCells