Stem CellsGenetic TherapyHematopoietic Stem CellsStem Cell TransplantationEmbryonic Stem CellsAdult Stem CellsGenetic VectorsPluripotent Stem CellsHematopoietic Stem Cell TransplantationStem Cell NicheInduced Pluripotent Stem CellsNeural Stem CellsGene Transfer TechniquesCell DifferentiationMesenchymal Stem Cell TransplantationMultipotent Stem CellsMesenchymal Stromal CellsStem Cell FactorAdenoviridaeTransduction, GeneticCell LineageDependovirusLentivirusStem Cell ResearchCells, CulturedPlant StemsFetal Stem CellsCell ProliferationTransgenesRetroviridaeHematopoietic Stem Cell MobilizationBone Marrow CellsMice, Inbred C57BLNeoplastic Stem CellsGenes, Transgenic, SuicideRegenerationAntigens, CD34Gene ExpressionFlow CytometryCell Culture TechniquesGreen Fluorescent ProteinsOctamer Transcription Factor-3Mice, SCIDCell LineTransplantation, AutologousCell SeparationThymidine KinaseRegenerative MedicineHematopoiesisGanciclovirTransfectionCell- and Tissue-Based TherapyTransplantation, HomologousPeripheral Blood Stem Cell TransplantationDisease Models, AnimalGene TargetingTotipotent Stem CellsColony-Forming Units AssaySignal TransductionReverse Transcriptase Polymerase Chain ReactionMice, NudeEmbryo, MammalianCell DivisionCell SurvivalMice, TransgenicSOXB1 Transcription FactorsTissue EngineeringTime FactorsCell TransplantationSpermatogoniaImmunohistochemistryPhenotypeGene Expression RegulationCell Line, TumorBone Marrow TransplantationTransplantation, HeterologousGene Expression Regulation, DevelopmentalProto-Oncogene Proteins c-kitCytosine DeaminaseTumor Cells, CulturedModels, BiologicalSevere Combined ImmunodeficiencyCord Blood Stem Cell TransplantationGene Expression ProfilingApoptosisNestinNeuronsX-Linked Combined Immunodeficiency DiseasesHomeodomain ProteinsPromoter Regions, GeneticFetal BloodMice, Inbred BALB CCoculture Techniquesbeta-GalactosidaseProdrugsTranscription FactorsGenes, ReporterBiological MarkersAntigens, CDGerm Cells