FibroblastsAmbystoma mexicanumRegenerationExtremitiesTurbellariaNotophthalmusAmbystomaNotophthalmus viridescensForelimbSalamandridaeAnimal FinsPlanariansFibroblast Growth FactorsFibroblast Growth Factor 2TriturusTailCells, CulturedAmputationReceptors, Fibroblast Growth FactorUrodelaPleurodelesWilms TumorWound HealingDermisFibroblast Growth Factor 1Nerve TissueSkinIn Situ HybridizationCell DifferentiationZebrafishCell LineCell DivisionMolecular Sequence DataReceptor, Fibroblast Growth Factor, Type 1RNA, MessengerSignal TransductionAnaplasiaCell ProliferationCell DedifferentiationGene Expression Regulation, DevelopmentalReceptor, Fibroblast Growth Factor, Type 2MesodermAmputation StumpsPentosan Sulfuric PolyesterGene Expression RegulationAnimal StructuresAmino Acid SequenceMorphogenesisExtracellular MatrixBase SequenceGene ExpressionCollagenEpidermisCartilageGenes, Homeobox3T3 CellsTretinoinZebrafish ProteinsReceptor, Fibroblast Growth Factor, Type 3Animals, Genetically ModifiedImmunohistochemistryBody PatterningHomeodomain ProteinsTenascinCell MovementLimb BudsMSX1 Transcription FactorTime FactorsDNA, ComplementaryCellular MicroenvironmentReverse Transcriptase Polymerase Chain ReactionXenopus ProteinsModels, BiologicalTransfectionCell Transformation, NeoplasticXenopus laevisDenervationFluorescent Antibody TechniqueStem CellsHindlimbChoristomaKeloidBlotting, NorthernPAX7 Transcription FactorFibroblast Growth Factor 10Multipotent Stem CellsEmbryo, NonmammalianFibroblast Growth Factor 7Collagen Type IGrowth SubstancesDNA PrimersChick EmbryoT-Box Domain ProteinsActinsNIH 3T3 CellsTranscription FactorsLarvaMicroscopy, ElectronBromodeoxyuridineCell Aging