Transplantation ToleranceSkin TransplantationTransplantation, HomologousTransplantation ImmunologyImmune ToleranceHeart TransplantationLiver TransplantationGraft RejectionBone Marrow TransplantationGraft SurvivalKidney TransplantationTransplantation ChimeraHematopoietic Stem Cell TransplantationIsoantigensCD40 LigandIslets of Langerhans TransplantationDrug ToleranceOrgan TransplantationInjections, IntralymphaticTransplantation, HeterotopicGraft Enhancement, ImmunologicTransplantation, AutologousTissue DonorsRadiation ChimeraImmunosuppressionLung TransplantationChimerismMice, Inbred C57BLMice, Inbred BALB CT-Lymphocytes, RegulatoryMice, Inbred CBAImmunosuppressive AgentsStem Cell TransplantationT-LymphocytesTransplantation ConditioningGraft vs Host DiseaseLymphocyte Culture Test, MixedLymphocyte TransfusionMice, Inbred C3HRats, Inbred ACILymphocyte DepletionClonal DeletionChimeraPancreas TransplantationTransplantationAdoptive TransferAntibodies, BlockingThymectomyCell TransplantationCostimulatory and Inhibitory T-Cell ReceptorsThymus GlandCD4-Positive T-LymphocytesGlucose Tolerance TestAntibodies, MonoclonalTime FactorsReceptors, Interleukin-2Mice, TransgenicIsoantibodiesCD8-Positive T-LymphocytesImmunoconjugatesRats, Inbred LewCTLA-4 AntigenTransplantation, IsogeneicMice, KnockoutAntigens, CD4T-Lymphocyte SubsetsInjections, IntraperitonealTreatment OutcomeH-2 AntigensLiving DonorsLymphocyte ActivationSpleenCord Blood Stem Cell TransplantationHeart-Lung TransplantationModels, ImmunologicalAntigens, CD40Antigens, CD45Tissue and Organ ProcurementMice, Inbred StrainsAntigens, CD80Antigens, CD8Forkhead Transcription FactorsAntigens, DifferentiationPeripheral Blood Stem Cell TransplantationRetrospective StudiesHistocompatibility TestingAntigens, CDLiver FailureFetal Tissue TransplantationFlow CytometryInterleukin-2 Receptor alpha SubunitPostoperative ComplicationsDendritic CellsTransplantation, HeterologousReceptors, Antigen, T-CellWaiting ListsRecurrenceCytotoxicity, ImmunologicHistocompatibilityMesenchymal Stem Cell Transplantation