Ambystoma mexicanumRegenerationExtremitiesTurbellariaNotophthalmusAmbystomaNotophthalmus viridescensForelimbCell ProliferationSalamandridaeAnimal FinsPlanariansCell DivisionTriturusCell DifferentiationCells, CulturedTailSignal TransductionApoptosisCell Line, TumorAmputationBromodeoxyuridineCell CycleImmunohistochemistryIn Situ HybridizationUrodelaPleurodelesRNA, MessengerWilms TumorCell MovementZebrafishGene Expression Regulation, DevelopmentalWound HealingNerve TissueStem CellsReverse Transcriptase Polymerase Chain ReactionCell SurvivalMolecular Sequence DataGene Expression RegulationLymphocyte ActivationGene ExpressionCell LineBlotting, WesternMice, Inbred C57BLProliferating Cell Nuclear AntigenMorphogenesisKi-67 AntigenPhosphorylationTime FactorsEpidermisTumor Cells, CulturedHomeodomain ProteinsTranscription FactorsMesodermCell DedifferentiationRNA, Small InterferingGene Expression Regulation, NeoplasticRNA InterferenceFibroblast Growth FactorsAnaplasiaAmino Acid SequenceCell Growth ProcessesDown-RegulationFlow CytometryBase SequenceT-LymphocytesModels, BiologicalMice, KnockoutTretinoinEpithelial CellsDose-Response Relationship, DrugAnimal StructuresPentosan Sulfuric PolyesterAmputation StumpsAnimals, Genetically ModifiedTransfectionZebrafish ProteinsCyclin D1Mice, TransgenicFibroblastsThymidineUp-RegulationGene Expression ProfilingMice, NudeMuscle, Smooth, VascularGenes, HomeoboxCell CountDermisbeta CateninBody PatterningProto-Oncogene Proteins c-aktHedgehog ProteinsCyclin-Dependent Kinase Inhibitor p27Mice, Inbred BALB CCartilageDNA PrimersMitosisCell Transformation, NeoplasticHyperplasiaEnzyme Activation