SpermatogoniaGerm CellsStem CellsSeminiferous TubulesSpermatogenesisTestisCell CycleCell DifferentiationHematopoietic Stem CellsStem Cell TransplantationEmbryonic Stem CellsAdult Stem CellsPluripotent Stem CellsHematopoietic Stem Cell TransplantationStem Cell NicheCell Cycle ProteinsNeural Stem CellsInduced Pluripotent Stem CellsMultipotent Stem CellsMesenchymal Stem Cell TransplantationCell LineStem Cell FactorMesenchymal Stromal CellsCell ProliferationCell LineageCells, CulturedCell Line, TumorStem Cell ResearchPlant StemsCell Cycle CheckpointsFetal Stem CellsCell DivisionFlow CytometrySignal TransductionMolecular Sequence DataHematopoietic Stem Cell MobilizationGene Expression Regulation, DevelopmentalNeoplastic Stem CellsMenstrual CycleOctamer Transcription Factor-3Bone Marrow CellsApoptosisMitosisBase SequenceEmbryo, MammalianG1 PhaseNeoplasms, Germ Cell and EmbryonalMice, Inbred C57BLMutationRNA, MessengerTranscription FactorsRegenerationCell Culture TechniquesGene Expression RegulationPhenotypeCell SeparationModels, BiologicalTime FactorsCell SurvivalReverse Transcriptase Polymerase Chain ReactionGene Expression ProfilingTotipotent Stem CellsS PhaseDNA-Binding ProteinsHematopoiesisMice, TransgenicRegenerative MedicineTransplantation, AutologousImmunohistochemistryAntigens, CD34Peripheral Blood Stem Cell TransplantationCyclinsGene ExpressionGerm LayersNuclear ProteinsTranscription, GeneticTransplantation, HomologousSOXB1 Transcription FactorsColony-Forming Units AssayMice, SCIDGreen Fluorescent ProteinsBlotting, WesternAmino Acid SequenceGonadsHomeodomain ProteinsTumor Suppressor Protein p53Cyclin-Dependent Kinase Inhibitor p21Proto-Oncogene Proteins c-kitTeratomaFibroblastsPhosphorylationPromoter Regions, GeneticTransfectionDNAChimeraCell MovementNeuronsBiological MarkersTissue EngineeringProtein-Serine-Threonine Kinases