T-Lymphocytes, Helper-InducerHLA-DR7 AntigenLymphocytesLymphocyte ActivationT-LymphocytesLymphocyte CooperationT-Lymphocytes, CytotoxicInterleukin-2CD4-Positive T-LymphocytesEpitopesMice, Inbred BALB CHelper VirusesB-LymphocytesLymphocyte SubsetsLymphocyte CountSpleenCytotoxicity, ImmunologicT-Lymphocyte SubsetsMice, Inbred C57BLCells, CulturedCD8-Positive T-LymphocytesFlow CytometryInterferon-gammaClone CellsLymphocyte Culture Test, MixedAntigens, Differentiation, T-LymphocyteTh2 CellsAntigens, CD3PhytohemagglutininsReceptors, Antigen, T-CellTh1 CellsConcanavalin AImmunity, CellularAntibody FormationAntibodies, MonoclonalCytokinesLeukocyte CountAntigens, CDT-Lymphocytes, RegulatoryLymphocytes, Tumor-InfiltratingInterleukin-4Antigens, SurfaceLymph NodesMice, Inbred StrainsImmunologic MemoryThymus GlandAntigensHistocompatibility Antigens Class IICell DifferentiationReceptors, CXCR5Antigens, CD4Cell LineImmunophenotypingAntibody-Producing CellsH-2 AntigensMolecular Sequence DataCytotoxicity Tests, ImmunologicAntigen-Presenting CellsCell SeparationMitogensEpitopes, T-LymphocyteMajor Histocompatibility ComplexKiller Cells, NaturalLymphocyte DepletionDendritic CellsHemolytic Plaque TechniqueRosette FormationHemocyaninJurkat CellsHistocompatibility AntigensMice, KnockoutAntigen PresentationImmunoglobulinsLymphocyte TransfusionTrinitrobenzenesMice, TransgenicAntigens, CD45Amino Acid SequenceHaptensImmune TolerancePokeweed MitogensImmunoglobulin GAntigens, NeoplasmReceptors, Interleukin-2Cell DivisionAntigens, CD8HLA-DR AntigensLeukocytes, MononuclearMice, Inbred C3HMembrane GlycoproteinsReceptors, Antigen, T-Cell, alpha-betaMacrophagesImmunizationGerminal CenterGenes, MHC Class IISignal TransductionInterleukinsDose-Response Relationship, ImmunologicTh17 CellsInducible T-Cell Co-Stimulator Protein