LymphocytesCell DifferentiationB-LymphocytesAntigensLymphocyte ActivationT-LymphocytesAntigens, SurfaceAntigens, BacterialAntigens, NeoplasmCells, CulturedReceptors, Antigen, B-CellAntigens, ViralAntigens, CDCell LineLymphocyte SubsetsSpleenMice, Inbred C57BLFlow CytometryLymphocyte CountMolecular Sequence DataAntibodies, MonoclonalMice, Inbred BALB CCell DivisionSignal TransductionImmunoglobulin MBase SequenceAntigens, DifferentiationRNA, MessengerB-Lymphocyte SubsetsPalatine TonsilHLA AntigensImmunoglobulin GGene Expression RegulationReceptors, Antigen, T-CellAntigens, ProtozoanFluorescent Antibody TechniqueAntibody FormationAntigens, CD19Transcription FactorsCD4-Positive T-LymphocytesH-2 AntigensAntigens, Polyomavirus TransformingAntigens, CD3Cell ProliferationStem CellsEpitopesAmino Acid SequenceMice, TransgenicImmunoglobulinsLymphocyte Culture Test, MixedMice, KnockoutHistocompatibility AntigensHistocompatibility Antigens Class IIPhenotypeClone CellsLymphocyte CooperationImmunohistochemistryCell LineageCell SeparationHLA-DR AntigensHerpesvirus 4, HumanTumor Cells, CulturedAntigens, FungalDNA-Binding ProteinsGene Expression Regulation, DevelopmentalT-Lymphocytes, CytotoxicLeukocyte CountThymus GlandTime FactorsLymph NodesAntigens, CD45ImmunophenotypingMitogensBone Marrow CellsCD8-Positive T-LymphocytesAntigens, HelminthGene ExpressionCytotoxicity, ImmunologicRosette FormationReverse Transcriptase Polymerase Chain ReactionMice, Inbred StrainsMonocytesInterleukin-2Immunity, CellularMembrane GlycoproteinsT-Lymphocyte SubsetsPhytohemagglutininsSex DifferentiationAntigens, CD40Concanavalin AInterferon-gammaEnzyme-Linked Immunosorbent AssayApoptosisLymphocytes, Tumor-InfiltratingHematopoietic Stem CellsTransfectionMacrophagesEmbryonic Stem CellsAntibody SpecificityCarcinoembryonic Antigen