Ambystoma mexicanumRegenerationExtremitiesTurbellariaNotophthalmusAmbystomaNotophthalmus viridescensForelimbCell DifferentiationCell ProliferationSalamandridaeCells, CulturedAnimal FinsPlanariansSignal TransductionCell DivisionGene Expression Regulation, DevelopmentalStem CellsTriturusTailRNA, MessengerTranscription FactorsCell LineGene Expression RegulationIn Situ HybridizationImmunohistochemistryMolecular Sequence DataApoptosisTretinoinReverse Transcriptase Polymerase Chain ReactionAmputationHomeodomain ProteinsCell LineageGene ExpressionMice, Inbred C57BLCell CycleZebrafishBromodeoxyuridineBase SequenceCell Line, TumorEpidermisUrodelaMorphogenesisMice, KnockoutEmbryonic Stem CellsPleurodelesMesodermCell MovementTime FactorsSex DifferentiationMice, TransgenicDNA-Binding ProteinsWilms TumorNerve TissueCell SurvivalBlotting, WesternTumor Cells, CulturedFlow CytometryAmino Acid SequenceModels, BiologicalWound HealingPhenotypeGene Expression ProfilingLymphocyte ActivationDown-RegulationTransfectionTrans-ActivatorsOsteoblastsPhosphorylationFibroblast Growth FactorsEpithelial CellsUp-RegulationDNA PrimersCell Culture TechniquesOsteogenesisCell DedifferentiationZebrafish ProteinsRNA InterferenceMesenchymal Stromal CellsAntigens, DifferentiationRNA, Small InterferingTranscription, GeneticHematopoietic Stem CellsBone Marrow CellsT-LymphocytesKeratinocytesCartilageHedgehog ProteinsAnimals, Genetically ModifiedFibroblastsNeuronsbeta CateninBody PatterningMutationWnt ProteinsMultipotent Stem CellsProto-Oncogene ProteinsFluorescent Antibody TechniqueNuclear ProteinsPromoter Regions, Genetic