Cell DifferentiationCells, CulturedMice, Inbred C57BLCell LineFlow CytometryStem CellsLymphocyte ActivationT-LymphocytesCD4-Positive T-LymphocytesMice, TransgenicCell DivisionT-Lymphocyte SubsetsKiller Cells, NaturalB-LymphocytesCD8-Positive T-LymphocytesMice, KnockoutCell LineageSignal TransductionMice, Inbred BALB CSpleenCell ProliferationCell SeparationCell MovementApoptosisRNA, MessengerCell SurvivalEpithelial CellsMolecular Sequence DataImmunophenotypingPhenotypeAntigens, CDImmunohistochemistryClone CellsImmunologic MemoryTime FactorsInterferon-gammaTumor Cells, CulturedDendritic CellsModels, BiologicalCell Line, TumorCell CommunicationCytotoxicity, ImmunologicMutationT-Lymphocytes, RegulatoryBone Marrow CellsCell CountCytokinesMicroscopy, ElectronGene Expression RegulationCell Culture TechniquesThymus GlandFibroblastsCoculture TechniquesMembrane GlycoproteinsHematopoietic Stem CellsBase SequenceCell CycleAdoptive TransferGene ExpressionReverse Transcriptase Polymerase Chain ReactionMast CellsTranscription FactorsMice, SCIDImmune ToleranceFluorescent Antibody TechniqueGreen Fluorescent ProteinsAntibodies, MonoclonalMembrane ProteinsKineticsGene Expression Regulation, DevelopmentalReceptors, Antigen, T-Cell, gamma-deltaCell AdhesionAntigens, CD45DNA-Binding ProteinsNeuronsAntigensMice, Inbred StrainsTransfectionEpitheliumB-Lymphocyte SubsetsCell MembraneEmbryonic Stem CellsAmino Acid SequenceT-Lymphocytes, Helper-InducerMicroscopy, FluorescenceAntigens, CD8Antigen-Presenting CellsLymph NodesAntigens, SurfaceNatural Killer T-CellsReceptors, Antigen, T-CellReceptors, Antigen, T-Cell, alpha-betaNeurogliaForkhead Transcription FactorsMacrophagesCell Transformation, NeoplasticInterleukin-2Microscopy, ConfocalTranscription, GeneticAntigens, CD4