Transplantation ToleranceSkin TransplantationTransplantation, HomologousImmune ToleranceGraft RejectionHeart TransplantationGraft SurvivalTransplantation ImmunologyKidney TransplantationIsoantigensDrug ToleranceLiver TransplantationIslets of Langerhans TransplantationTransplantation, HeterotopicTransplantation ChimeraCD40 LigandBone Marrow TransplantationChimerismImmunosuppressive AgentsTissue DonorsMice, Inbred C57BLRats, Inbred LewImmunosuppressionLymphocyte Culture Test, MixedMice, Inbred BALB CT-Lymphocytes, RegulatoryGraft Enhancement, ImmunologicIsoantibodiesHematopoietic Stem Cell TransplantationOrgan TransplantationT-LymphocytesInjections, IntralymphaticLung TransplantationMice, Inbred C3HTransplantation, AutologousRadiation ChimeraGlucose Tolerance TestAdoptive TransferAntibodies, MonoclonalSpleenCD4-Positive T-LymphocytesTime FactorsMice, Inbred CBACD8-Positive T-LymphocytesStem Cell TransplantationInterleukin-2 Receptor alpha SubunitAntigens, CD4Transplantation ConditioningLymphocyte TransfusionGraft vs Host DiseaseRats, Inbred ACIForkhead Transcription FactorsPancreas TransplantationMice, KnockoutLymphocyte ActivationClonal DeletionLymphocyte DepletionChimeraTransplantationAntibodies, BlockingDendritic CellsThymectomyThymus GlandImmunoconjugatesMice, Inbred DBACell TransplantationMice, TransgenicFlow CytometryTransplantation, IsogeneicModels, AnimalTreatment OutcomeReceptors, Interleukin-2Costimulatory and Inhibitory T-Cell ReceptorsCTLA-4 AntigenT-Lymphocyte SubsetsCorneal TransplantationInjections, IntraperitonealLiving DonorsBlood TransfusionH-2 AntigensHistocompatibility TestingRetrospective StudiesCyclosporineAntigens, CD40Mice, Inbred StrainsSelf ToleranceModels, ImmunologicalHeart-Lung TransplantationPostoperative ComplicationsAntigens, CD80Antigens, DifferentiationAntigens, CDCord Blood Stem Cell TransplantationAntigens, CD45Antigens, CD8AllograftsTissue and Organ ProcurementTacrolimusLiver FailureFollow-Up Studies