T-LymphocytesLymphocytesLymphocyte ActivationApoptosisAntigens, CD95Lymphocyte CountLymphocyte SubsetsCD4-Positive T-LymphocytesAntigens, CD3Fas Ligand ProteinB-LymphocytesFlow CytometrySpleenCD8-Positive T-LymphocytesCells, CulturedJurkat CellsSepsisMice, Inbred C57BLProto-Oncogene Proteins c-bcl-2T-Lymphocyte SubsetsThymus GlandT-Lymphocytes, CytotoxicCaspasesAntigens, CD8Antigens, CDCaspase 3Autoimmune Lymphoproliferative SyndromeCD4-CD8 RatioCytokinesCytotoxicity, ImmunologicLymphoproliferative DisordersAnnexin A5Hemorrhagic Fever, EbolaInterleukin-2In Situ Nick-End LabelingAntigens, CD28CD40 LigandLymphocytes, Tumor-InfiltratingMembrane GlycoproteinsAntigens, Differentiation, T-LymphocyteAntigens, CD40LymphopeniaSignal TransductionMice, TransgenicCell LineLymphocyte Culture Test, MixedMice, KnockoutReceptors, Antigen, T-CellApoptosis Regulatory ProteinsAntigens, CD44Mice, Inbred BALB CImmunophenotypingPhytohemagglutininsAutoimmune DiseasesInterferon-gammaAntibodies, MonoclonalEbolavirusAntigens, CD34Antigens, SurfaceMitochondriaClone CellsCell DivisionLymph NodesHypergammaglobulinemiaSplenomegalyMolecular Sequence DataAntigens, CD2Concanavalin ALeukocyte CountMice, Inbred MRL lprProto-Oncogene ProteinsCell SeparationCD4 Lymphocyte CountT-Lymphocytes, Helper-InducerLymphocyte TransfusionCell SurvivalImmunity, CellularDisease Models, AnimalInhibitor of Apoptosis ProteinsTumor Cells, CulturedT-Lymphocytes, RegulatoryReceptors, Antigen, T-Cell, alpha-betaAntigens, CD80ImmunohistochemistryRNA, MessengerCell Line, TumorAntigens, CD19Time FactorsLymphocyte DepletionAntigens, CD38Killer Cells, NaturalHIV InfectionsAntigens, CD45MacrophagesAntigens, CD5Dendritic CellsAntigens, CD14Cytotoxicity Tests, ImmunologicReceptors, Interleukin-2Cell Proliferation