Stem CellsEmbryonic Stem CellsStem Cell TransplantationCell DifferentiationHematopoietic Stem CellsAdult Stem CellsPluripotent Stem CellsInduced Pluripotent Stem CellsMesenchymal Stromal CellsMultipotent Stem CellsCell LineageNeural Stem CellsHematopoietic Stem Cell TransplantationCells, CulturedStem Cell NicheEmbryo, MammalianCell Culture TechniquesRegenerative MedicineBone Marrow CellsMesenchymal Stem Cell TransplantationNeoplastic Stem CellsCell ProliferationRegenerationStem Cell FactorCell DedifferentiationEmbryo, NonmammalianCell SeparationMice, Inbred C57BLGerm CellsFlow CytometryCell TransplantationGene Expression Regulation, DevelopmentalTissue EngineeringCell LineMice, SCIDStem Cell ResearchCell DivisionHematopoiesisFetal Stem CellsPlant StemsOctamer Transcription Factor-3PhenotypeMice, TransgenicGreen Fluorescent ProteinsCell MovementNeuronsCoculture TechniquesModels, BiologicalReverse Transcriptase Polymerase Chain ReactionBlastocystImmunohistochemistryTotipotent Stem CellsHematopoietic Stem Cell MobilizationEmbryonic DevelopmentGene Expression ProfilingGene Expression RegulationSignal TransductionBone Marrow TransplantationTeratomaMice, Inbred NODBiological MarkersGene ExpressionTranscription FactorsCell AggregationEmbryonal Carcinoma Stem CellsAntigens, CD34Transplantation, AutologousMolecular Sequence DataHomeodomain ProteinsPeripheral Blood Stem Cell TransplantationTransplantation, HomologousCell SurvivalCell CycleTime FactorsEndodermMyocytes, CardiacBlastomeresRNA, MessengerChimeraGastrulaSOXB1 Transcription FactorsColony-Forming Units AssayXenopus ProteinsBase SequenceVitellinsSpermatogoniaMesodermCarcinoma, EmbryonalChick EmbryoMitosisCell- and Tissue-Based TherapyTeratocarcinomaClone CellsCaenorhabditis elegansProto-Oncogene Proteins c-kitNestinFibroblastsMice, KnockoutCord Blood Stem Cell TransplantationCell Count