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, ImmunologicTissue DonorsTransplantation, AutologousRadiation ChimeraLung TransplantationImmunosuppressionChimerismMice, Inbred C57BLMice, Inbred BALB CProgram EvaluationT-Lymphocytes, RegulatoryMice, Inbred CBAImmunosuppressive AgentsStem Cell TransplantationT-LymphocytesTransplantation ConditioningGraft vs Host DiseaseLymphocyte Culture Test, MixedLymphocyte TransfusionMice, Inbred C3HRats, Inbred ACILymphocyte DepletionClonal DeletionChimeraPancreas TransplantationTime FactorsTransplantationAdoptive TransferAntibodies, BlockingThymectomyCell TransplantationCostimulatory and Inhibitory T-Cell ReceptorsThymus GlandCD4-Positive T-LymphocytesGlucose Tolerance TestAntibodies, MonoclonalTreatment OutcomeReceptors, Interleukin-2Mice, TransgenicCD8-Positive T-LymphocytesIsoantibodiesImmunoconjugatesRats, Inbred LewProgram DevelopmentMice, KnockoutCTLA-4 AntigenTransplantation, IsogeneicT-Lymphocyte SubsetsAntigens, CD4Injections, IntraperitonealLiving DonorsH-2 AntigensLymphocyte ActivationSpleenCord Blood Stem Cell TransplantationHeart-Lung TransplantationModels, ImmunologicalRetrospective StudiesAntigens, CD40Tissue and Organ ProcurementAntigens, CD45Mice, Inbred StrainsForkhead Transcription FactorsAntigens, CD80Antigens, CD8Antigens, DifferentiationPeripheral Blood Stem Cell TransplantationHistocompatibility TestingAntigens, CDLiver FailureFlow CytometryFetal Tissue TransplantationInterleukin-2 Receptor alpha SubunitFollow-Up StudiesPostoperative ComplicationsWaiting ListsRecurrenceDendritic CellsTransplantation, HeterologousReceptors, Antigen, T-Cell