LymphocytesT-Lymphocytes, Helper-InducerT-LymphocytesLymphocyte ActivationAntigens, SurfaceAntigensLeukocyte CountT-Lymphocytes, RegulatoryAntibodies, MonoclonalT-Lymphocytes, CytotoxicHLA-DR AntigensB-LymphocytesInterleukin-2Antigens, Differentiation, T-LymphocyteAntigens, NeoplasmAntigens, BacterialHelper VirusesImmunity, CellularCD4-CD8 RatioClone CellsHistocompatibility Antigens Class IIImmunoenzyme TechniquesAntigens, ViralCD4-Positive T-LymphocytesAntigens, CDLymphocyte SubsetsLymphocyte CountCells, CulturedCytotoxicity, ImmunologicSpleenReceptors, Antigen, T-CellAntigens, CD3Mice, Inbred BALB CCD8-Positive T-LymphocytesMice, Inbred C57BLFlow CytometryH-2 AntigensEpitopesT-Lymphocyte SubsetsInterferon-gammaHLA AntigensLymphocyte Culture Test, MixedCell LineMolecular Sequence DataHistocompatibility AntigensAntigens, ProtozoanPhytohemagglutininsAntigens, CD8Antigens, Polyomavirus TransformingAntigens, CD4HLA-A2 AntigenConcanavalin ACytokinesReceptors, Antigen, B-CellAntibody FormationAntigens, CD45Lymphocytes, Tumor-InfiltratingImmunoglobulin GAntigens, FungalAmino Acid SequenceLymph NodesAntigens, HelminthDendritic CellsHistocompatibility Antigens Class IThymus GlandCytotoxicity Tests, ImmunologicTh2 CellsTh1 CellsMice, Inbred StrainsImmunophenotypingAntigen-Presenting CellsEnzyme-Linked Immunosorbent AssayCell DifferentiationImmunizationBase SequenceInterleukin-4Immunologic MemoryHLA-A AntigensKiller Cells, NaturalJurkat CellsReceptors, Antigen, T-Cell, alpha-betaAntigens, DifferentiationMembrane GlycoproteinsCell SeparationEpitopes, T-LymphocyteLymphocyte CooperationCarcinoembryonic AntigenCell DivisionFluorescent Antibody TechniqueImmune ToleranceMitogensLymphocyte DepletionAntigens, Viral, TumorLymphocyte TransfusionRosette FormationRNA, MessengerCross ReactionsMice, TransgenicMacrophagesImmunoglobulin M