Cell DedifferentiationRegenerationAmbystoma mexicanumExtremitiesTurbellariaNotophthalmus viridescensNotophthalmusAmbystomaCell DifferentiationChondrocytesForelimbSalamandridaeCartilage, ArticularCollagen Type IIAggrecansCell Culture TechniquesChondrogenesisCells, CulturedAnimal FinsCell ProliferationCollagen Type IExtracellular MatrixLimb BudsCell DivisionPlanariansCollagenTailUrodelaTriturusRNA, MessengerGene Expression RegulationAmputationZebrafishIn Situ HybridizationLimb SalvagePleurodelesLimb Deformities, CongenitalLiposarcomaWilms TumorNerve TissueGene Expression Regulation, DevelopmentalMesodermHomeodomain ProteinsImmunohistochemistryCartilageAmputation StumpsSignal TransductionPhantom LimbWound HealingHindlimbTretinoinAnaplasiaZebrafish ProteinsMorphogenesisStem CellsTime FactorsGene Expression ProfilingReverse Transcriptase Polymerase Chain ReactionTranscription FactorsAnimal StructuresBody PatterningGenes, HomeoboxMultipotent Stem CellsPentosan Sulfuric PolyesterOsteosarcoma, JuxtacorticalFibroblast Growth FactorsOncostatin M Receptor beta SubunitMolecular Sequence DataModels, BiologicalHolothuriaCell Transdifferentiationbeta CateninLarvaMusclesGene ExpressionBase SequenceMSX1 Transcription FactorEpidermisLegDermisAnimals, Genetically ModifiedLower ExtremityAmino Acid SequencePancreatic Polypeptide-Secreting CellsVimentinDNA PrimersPhenotypeAIDS-Associated NephropathyCadherinsKidneyOligonucleotide Array Sequence AnalysisHedgehog ProteinsWnt ProteinsBromodeoxyuridineKidney NeoplasmsDown-RegulationDNA, ComplementaryEpithelial CellsIschemiaPodocytes