Multipotent Stem CellsRegenerationAmbystoma mexicanumExtremitiesTurbellariaNotophthalmusAmbystomaNotophthalmus viridescensForelimbCell DifferentiationCell LineageMesenchymal Stromal CellsStem CellsSalamandridaeNeural CrestCells, CulturedAdipogenesisHematopoietic Stem CellsOsteogenesisCell ProliferationAnimal FinsCell SeparationCell Culture TechniquesPlanariansBone Marrow CellsMesenchymal Stem Cell TransplantationGene Expression Regulation, DevelopmentalStem Cell TransplantationTriturusTailAdipocytesSignal TransductionFlow CytometryAmputationBiological MarkersGene Expression RegulationTranscription FactorsNeuronsUrodelaPleurodelesWilms TumorZebrafishNerve TissueIn Situ HybridizationCell DedifferentiationMesodermAdult Stem CellsHomeodomain ProteinsAnaplasiaWound HealingDermisMorphogenesisAmputation StumpsLymphoid Progenitor CellsEpidermisZebrafish ProteinsCellular MicroenvironmentAnimal StructuresAnimals, Genetically ModifiedPentosan Sulfuric PolyesterTretinoinCartilageImmunohistochemistryFibroblast Growth FactorsStromal CellsBody PatterningGenes, HomeoboxPAX7 Transcription FactorNestinHematopoiesisMolecular Sequence DataGene Expression ProfilingCell TransplantationNeural Stem CellsReverse Transcriptase Polymerase Chain ReactionGene ExpressionEmbryo, NonmammalianXenopus ProteinsHedgehog ProteinsColony-Forming Units AssayMSX1 Transcription FactorCell DivisionModels, BiologicalBromodeoxyuridineEmbryonic Stem CellsLimb BudsWnt ProteinsChoristomaDenervationT-Box Domain ProteinsFetal Stem CellsAmino Acid SequenceMice, Inbred C57BLXenopus laevisNeurogliaCell MovementPluripotent Stem CellsMice, TransgenicHindlimbMyeloid Progenitor Cells