Cell DifferentiationAntigensCell ProliferationAntigens, BacterialAntigens, SurfaceAntigens, NeoplasmCells, CulturedSignal TransductionReceptors, Antigen, T-CellAntigens, CDCell LineAntigens, ViralCell DivisionMice, Inbred C57BLFlow CytometryMice, TransgenicT-Lymphocyte SubsetsMice, Inbred BALB CMolecular Sequence DataMice, KnockoutLymphocyte ActivationCD4-Positive T-LymphocytesRNA, MessengerGene Expression RegulationInterferon-gammaApoptosisAntibodies, MonoclonalStem CellsB-LymphocytesImmunologic MemoryTranscription FactorsCD8-Positive T-LymphocytesImmunohistochemistryAntigens, DifferentiationInterleukin-2SpleenReverse Transcriptase Polymerase Chain ReactionBase SequenceDendritic CellsAmino Acid SequenceClone CellsT-Lymphocytes, RegulatoryCell Line, TumorCytokinesPhenotypeH-2 AntigensAntigens, ProtozoanHistocompatibility Antigens Class IIThymus GlandGene Expression Regulation, DevelopmentalHLA AntigensTumor Cells, CulturedCell CycleReceptors, Antigen, T-Cell, alpha-betaT-LymphocytesGene ExpressionCell MovementTime FactorsAntigens, Polyomavirus TransformingProliferating Cell Nuclear AntigenBlotting, WesternCell LineageAntigens, CD4DNA-Binding ProteinsAntigens, CD45Down-RegulationTransfectionEpitopes, T-LymphocyteEpitopesHLA-DR AntigensUp-RegulationImmune ToleranceFluorescent Antibody TechniqueCoculture TechniquesMembrane GlycoproteinsAntigens, CD28Adoptive TransferAntigens, FungalAntigens, HelminthEnzyme-Linked Immunosorbent AssayPhosphorylationHistocompatibility AntigensCell SeparationEmbryonic Stem CellsT-Lymphocytes, CytotoxicCytotoxicity, ImmunologicForkhead Transcription FactorsRecombinant ProteinsCell SurvivalReceptors, Antigen, T-Cell, gamma-deltaMembrane ProteinsTranscription, GeneticMice, Inbred StrainsSex DifferentiationT-Lymphocytes, Helper-InducerBromodeoxyuridineInterleukin-4Cell Culture TechniquesReceptors, Antigen, B-CellTretinoin