Stem CellsHematopoietic Stem CellsStem Cell TransplantationEmbryonic Stem CellsAdult Stem CellsPluripotent Stem CellsHematopoietic Stem Cell TransplantationStem Cell NicheNeural Stem CellsInduced Pluripotent Stem CellsCell DifferentiationMultipotent Stem CellsMesenchymal Stem Cell TransplantationStem Cell FactorMesenchymal Stromal CellsCell ProliferationCell DivisionCell LineageCells, CulturedStem Cell ResearchPlant StemsFetal Stem CellsHematopoietic Stem Cell MobilizationSignal TransductionNeoplastic Stem CellsBone Marrow CellsCell Culture TechniquesRegenerationCell Line, TumorFlow CytometryCell LineOctamer Transcription Factor-3Cell SeparationHematopoiesisCell Growth ProcessesRegenerative MedicineTransplantation, AutologousCell SurvivalMice, Inbred C57BLAntigens, CD34Peripheral Blood Stem Cell TransplantationCell CycleTotipotent Stem CellsApoptosisTransplantation, HomologousReverse Transcriptase Polymerase Chain ReactionEmbryo, MammalianColony-Forming Units AssayMice, SCIDTranscription FactorsSOXB1 Transcription FactorsGene Expression ProfilingSpermatogoniaModels, BiologicalGene Expression Regulation, DevelopmentalPhenotypeRNA, MessengerGene Expression RegulationTissue EngineeringProto-Oncogene Proteins c-kitImmunohistochemistryTumor Cells, CulturedCell MovementCell- and Tissue-Based TherapyTime FactorsGene ExpressionNestinCord Blood Stem Cell TransplantationMice, TransgenicMolecular Sequence DataCoculture TechniquesHomeodomain ProteinsMice, NudeTransplantation, HeterologousCell Transformation, NeoplasticBlotting, WesternGreen Fluorescent ProteinsGerm CellsBiological MarkersTransfectionHair FollicleBrain StemAntigens, CDBase SequenceNeuronsBone MarrowEmbryo ResearchCell DedifferentiationGene Expression Regulation, NeoplasticBone Marrow TransplantationFetal BloodMutationCell CountFibroblastsDNA-Binding ProteinsTeratomaSpheroids, CellularLentivirusAntineoplastic AgentsRNA, Small Interfering