Transplantation ToleranceTransplantation ImmunologyTransplantation, HomologousSkin TransplantationGraft RejectionOrgan TransplantationImmune ToleranceGraft SurvivalHeart TransplantationIslets of Langerhans TransplantationLiver TransplantationBone Marrow TransplantationKidney TransplantationHematopoietic Stem Cell TransplantationTissue DonorsRaffinoseImmunosuppressive AgentsTransplantation ChimeraT-Lymphocytes, RegulatoryMice, Inbred BALB CMice, Inbred C57BLIsoantigensCD40 LigandDrug ToleranceInjections, IntralymphaticTransplantation, HeterotopicGraft Enhancement, ImmunologicTransplantation, AutologousRadiation ChimeraImmunosuppressionLung TransplantationTransplantation, HeterologousChimerismMice, Inbred CBAStem Cell TransplantationHematopoietic Stem CellsT-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-2Cells, CulturedMice, 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 CellsReceptors, Antigen, T-CellWaiting ListsRecurrence