Embryonic Stem CellsRegenerationAmbystoma mexicanumExtremitiesStem CellsEpidermisTurbellariaNotophthalmusAmbystomaNotophthalmus viridescensCell DifferentiationPluripotent Stem CellsForelimbStem Cell TransplantationEmbryo, MammalianOctamer Transcription Factor-3Hematopoietic Stem CellsInduced Pluripotent Stem CellsCell LineageCell Culture TechniquesAdult Stem CellsGene Expression Regulation, DevelopmentalCells, CulturedSalamandridaeEmbryoid BodiesNeural Stem CellsCell LineMultipotent Stem CellsEmbryo ResearchHomeodomain ProteinsSOXB1 Transcription FactorsCell ProliferationTeratomaStem Cell NicheHematopoietic Stem Cell TransplantationTotipotent Stem CellsPlanariansAnimal FinsGerm LayersMesenchymal Stromal CellsGene Expression ProfilingTranscription FactorsMesenchymal Stem Cell TransplantationEndodermChimeraLeukemia Inhibitory FactorStem Cell ResearchGene TargetingSignal TransductionReverse Transcriptase Polymerase Chain ReactionPlant EpidermisStem Cell FactorCell DedifferentiationBlastocystGene Expression RegulationStage-Specific Embryonic AntigensNuclear ReprogrammingTriturusKeratinocytesFeeder CellsImmunohistochemistryMesodermTailGene ExpressionTretinoinSkinFlow CytometryGreen Fluorescent ProteinsRegenerative MedicineMice, Inbred C57BLBone Morphogenetic Protein 4Cell SeparationCoculture TechniquesBiological MarkersHematopoiesisModels, BiologicalMice, TransgenicGerm CellsNeuronsMyocytes, CardiacRNA, MessengerIn Situ HybridizationBase SequenceMolecular Sequence DataFetal Stem CellsPhenotypeEmbryonic DevelopmentMice, SCIDEpigenesis, GeneticActivinsPlant StemsHair FollicleCell SurvivalTime FactorsNeoplastic Stem CellsMice, KnockoutDNA-Binding ProteinsKaryotypingDermisAmputation