Embryonic Stem CellsGerm CellsAdult Stem CellsStem CellsPluripotent Stem CellsCell DifferentiationEmbryo, MammalianOctamer Transcription Factor-3Stem Cell TransplantationCell LineageHematopoietic Stem CellsGene Expression Regulation, DevelopmentalTestisInduced Pluripotent Stem CellsCell Culture TechniquesGenomic ImprintingMultipotent Stem CellsGerm LayersNeoplasms, Germ Cell and EmbryonalStem Cell NicheTeratomaMesenchymal Stromal CellsCells, CulturedNeural Stem CellsEmbryoid BodiesHematopoietic Stem Cell TransplantationMesenchymal Stem Cell TransplantationCell ProliferationCell LineRegenerationStem Cell ResearchStage-Specific Embryonic AntigensRegenerative MedicinePlanariansSOXB1 Transcription FactorsChimeraSpermatogoniaStem Cell FactorGene Expression ProfilingCell SeparationTranscription FactorsGonadsEmbryo ResearchBiological MarkersEndodermHomeodomain ProteinsTotipotent Stem CellsFetal Stem CellsSignal TransductionCell- and Tissue-Based TherapyBlastocystBone Marrow CellsSpermatogenesisNeoplastic Stem CellsReverse Transcriptase Polymerase Chain ReactionKaryotypingMice, Inbred C57BLFlow CytometryMice, TransgenicMesodermGreen Fluorescent ProteinsTissue EngineeringNuclear ReprogrammingParthenogenesisTesticular NeoplasmsGene Expression RegulationMice, SCIDImmunohistochemistryCell DedifferentiationEpigenesis, GeneticCoculture TechniquesCell TransplantationModels, BiologicalPlant StemsPhenotypeLeukemia Inhibitory FactorHematopoiesisGene TargetingNeuronsHair FollicleGene ExpressionCell SurvivalRNA, MessengerNestinMyocytes, CardiacSpermatozoaLentivirusChondrogenesisHematopoietic Stem Cell MobilizationAntigens, CD34OvaryFeeder CellsColony-Forming Units AssayBone Morphogenetic Protein 4Seminiferous TubulesCell AgingCell DivisionGerminomaTime FactorsDNA-Binding Proteins