Embryonic Stem CellsRegenerationAmbystoma mexicanumExtremitiesTurbellariaStem CellsAmbystomaNotophthalmus viridescensNotophthalmusCell DifferentiationForelimbPluripotent Stem CellsSalamandridaeStem Cell TransplantationEmbryo, MammalianOctamer Transcription Factor-3Hematopoietic Stem CellsPlanariansInduced Pluripotent Stem CellsAnimal FinsCell LineageCell Culture TechniquesAdult Stem CellsGene Expression Regulation, DevelopmentalTriturusMultipotent Stem CellsCells, CulturedEmbryoid BodiesHomeodomain ProteinsNeural Stem CellsCell LineEmbryo ResearchTailCell ProliferationSOXB1 Transcription FactorsTeratomaStem Cell NicheHematopoietic Stem Cell TransplantationTotipotent Stem CellsAmputationCell DedifferentiationGene Expression ProfilingGerm LayersMesenchymal Stromal CellsMesenchymal Stem Cell TransplantationTranscription FactorsMesodermSignal TransductionEndodermReverse Transcriptase Polymerase Chain ReactionLeukemia Inhibitory FactorStem Cell ResearchChimeraUrodelaTretinoinGene TargetingNerve TissueIn Situ HybridizationStem Cell FactorGene Expression RegulationWilms TumorPleurodelesZebrafishBlastocystStage-Specific Embryonic AntigensNuclear ReprogrammingGene ExpressionFeeder CellsImmunohistochemistryRegenerative MedicineFlow CytometryBone Morphogenetic Protein 4Cell SeparationGreen Fluorescent ProteinsModels, BiologicalMolecular Sequence DataCoculture TechniquesHematopoiesisBiological MarkersMice, Inbred C57BLBase SequenceGerm CellsMyocytes, CardiacNeuronsFetal Stem CellsCell TransplantationWound HealingEpigenesis, GeneticFibroblast Growth FactorsWnt ProteinsEmbryonic DevelopmentMice, SCIDRNA, MessengerTime FactorsEpidermisActivinsGenes, HomeoboxMorphogenesisNeoplastic Stem CellsAnaplasia