Adult Stem CellsStem CellsStem Cell TransplantationCell DifferentiationCell LineageMultipotent Stem CellsPluripotent Stem CellsHematopoietic Stem CellsEmbryo, MammalianEmbryo, NonmammalianPlanariansNeoplastic Stem CellsStem Cell NicheMesenchymal Stromal CellsRegenerationPlant StemsEmbryonic Stem CellsGene Expression Regulation, DevelopmentalCells, CulturedMesenchymal Stem Cell TransplantationRegenerative MedicineCell ProliferationStem Cell ResearchBlastocystOctamer Transcription Factor-3Neural Stem CellsCell- and Tissue-Based TherapyEmbryonic DevelopmentInduced Pluripotent Stem CellsAging, PrematureHematopoietic Stem Cell TransplantationGerm CellsSignal TransductionBone Marrow CellsCell Culture TechniquesCell AggregationCell DivisionVitellinsGastrulaBlastomeresTranscription FactorsCell LineFetal Stem CellsCell SeparationXenopus ProteinsMolecular Sequence DataTeratomaTissue EngineeringModels, BiologicalHair FollicleCell CycleMice, Inbred C57BLGreen Fluorescent ProteinsCaenorhabditis elegansCell AgingTotipotent Stem CellsMesodermSpermatogoniaChick EmbryoEmbryonal Carcinoma Stem CellsGene Expression RegulationDental PulpPhenotypeCarcinoma, EmbryonalBase SequenceGene Expression ProfilingMitosisReverse Transcriptase Polymerase Chain ReactionEndodermRNA, MessengerCell MovementStem Cell FactorChondrogenesisBrain StemTeratocarcinomaDrosophila ProteinsFlow CytometryXenopusXenopus laevisOvumHomeodomain ProteinsWnt ProteinsTime FactorsMice, TransgenicImmunohistochemistryNeural CrestCell TransplantationOsteogenesisBlastulaEpigenesis, GeneticRNA InterferenceIn Situ HybridizationDrosophila melanogasterOocytesCleavage Stage, OvumSatellite Cells, Skeletal MuscleNuclear Transfer TechniquesCell DedifferentiationCell SurvivalAnimals, Genetically Modified