Ambystoma mexicanumRegenerationExtremitiesTurbellariaNotophthalmusAmbystomaNotophthalmus viridescensForelimbSalamandridaeAnimal FinsPlanariansTriturusTailAmputationUrodelaPleurodelesWilms TumorNerve TissueIn Situ HybridizationZebrafishCell DifferentiationGene Expression Regulation, DevelopmentalAnaplasiaGene Expression ProfilingAmputation StumpsAnimal StructuresCell DedifferentiationMolecular Sequence DataPentosan Sulfuric PolyesterWound HealingReplication OriginGene Expression RegulationMorphogenesisHomeodomain ProteinsGenes, HomeoboxMesodermZebrafish ProteinsEpidermisGene ExpressionStem CellsDermisCartilageAnimals, Genetically ModifiedBody PatterningFibroblast Growth FactorsTretinoinCell ProliferationAmino Acid SequenceBase SequenceMSX1 Transcription FactorOligonucleotide Array Sequence AnalysisCellular MicroenvironmentLimb BudsChoristomaDenervationXenopus ProteinsPAX7 Transcription FactorXenopus laevisHindlimbDNA, ComplementaryMultipotent Stem CellsEmbryo, NonmammalianReverse Transcriptase Polymerase Chain ReactionImmunohistochemistryLarvaCell LineageTenascinGenetic TherapyRNA, MessengerSignal TransductionTranscription FactorsT-Box Domain ProteinsModels, BiologicalKidney NeoplasmsGenetic VectorsCells, CulturedUreterHedgehog ProteinsTime FactorsDNA PrimersHematopoietic Stem CellsX-Linked Combined Immunodeficiency DiseasesHeadCumulus CellsBromodeoxyuridine