RegenerationAmbystoma mexicanumExtremitiesTurbellariaAmbystomaNotophthalmus viridescensNotophthalmusForelimbSalamandridaeAnimal FinsPlanariansCell ProliferationTriturusTailAmputationUrodelaPleurodelesWilms TumorCell DifferentiationNerve TissueZebrafishIn Situ HybridizationWound HealingSignal TransductionGene Expression Regulation, DevelopmentalAnaplasiaCells, CulturedCell DivisionCell DedifferentiationAmputation StumpsAnimal StructuresPentosan Sulfuric PolyesterMorphogenesisEpidermisBromodeoxyuridineMesodermImmunohistochemistryFibroblast Growth FactorsGenes, HomeoboxApoptosisZebrafish ProteinsMolecular Sequence DataStem CellsTretinoinAnimals, Genetically ModifiedHomeodomain ProteinsDermisCartilageBody PatterningGene ExpressionAmino Acid SequenceRNA, MessengerCell MovementGene Expression RegulationMSX1 Transcription FactorCell Line, TumorCellular MicroenvironmentLimb BudsReverse Transcriptase Polymerase Chain ReactionPAX7 Transcription FactorChoristomaCell CycleXenopus ProteinsDenervationMultipotent Stem CellsModels, BiologicalXenopus laevisHedgehog ProteinsBase SequenceHindlimbEmbryo, NonmammalianLarvaTime FactorsTenascinKidney NeoplasmsT-Box Domain ProteinsDNA, ComplementaryTranscription FactorsLymphocyte ActivationWnt ProteinsRNA InterferenceGene Expression Profilingbeta CateninCell SurvivalExtracellular MatrixMice, Inbred C57BLUreterDNA PrimersCell LineKi-67 AntigenBlotting, WesternCell TransplantationKidneyProliferating Cell Nuclear AntigenBone and BonesPhosphorylationT-LymphocytesHeadMitosisTrans-Activators