Embryonic Stem CellsRegenerationAmbystoma mexicanumExtremitiesStem CellsCell DifferentiationTurbellariaNotophthalmusAmbystomaNotophthalmus viridescensPluripotent Stem CellsForelimbStem Cell TransplantationEmbryo, MammalianOctamer Transcription Factor-3Hematopoietic Stem CellsCell LineageInduced Pluripotent Stem CellsCell Culture TechniquesCells, CulturedGene Expression Regulation, DevelopmentalAdult Stem CellsCell LineNeural Stem CellsCell ProliferationEmbryoid BodiesHomeodomain ProteinsSalamandridaeMultipotent Stem CellsSOXB1 Transcription FactorsEmbryo ResearchTeratomaTranscription FactorsSignal TransductionStem Cell NicheMesenchymal Stromal CellsHematopoietic Stem Cell TransplantationReverse Transcriptase Polymerase Chain ReactionTotipotent Stem CellsGene Expression ProfilingGene Expression RegulationEndodermPlanariansTretinoinGerm LayersLeukemia Inhibitory FactorMesenchymal Stem Cell TransplantationChimeraAnimal FinsGene TargetingMice, Inbred C57BLGene ExpressionFlow CytometryStem Cell ResearchImmunohistochemistryRNA, MessengerStem Cell FactorMesodermNeuronsCell DedifferentiationBlastocystStage-Specific Embryonic AntigensMolecular Sequence DataBase SequenceCoculture TechniquesBone Morphogenetic Protein 4HematopoiesisNuclear ReprogrammingCell SeparationBiological MarkersPhenotypeCell DivisionGreen Fluorescent ProteinsDNA-Binding ProteinsFeeder CellsMice, TransgenicModels, BiologicalRegenerative MedicineTriturusMice, KnockoutGerm CellsIn Situ HybridizationMyocytes, CardiacCell SurvivalTailEpigenesis, GeneticTime FactorsBone Marrow CellsFetal Stem CellsEmbryonic DevelopmentMice, SCIDActivinsOligonucleotide Array Sequence AnalysisPromoter Regions, GeneticNeoplastic Stem CellsWnt ProteinsTranscription, GeneticNeurogenesisTissue EngineeringFibroblasts