KidneyAmbystoma mexicanumRegenerationExtremitiesTurbellariaAmbystomaNotophthalmus viridescensNotophthalmusForelimbUreterSalamandridaeAnimal FinsPlanariansMesodermTriturusTailNephronsApoptosisWilms TumorAmputationIn Situ HybridizationPAX2 Transcription FactorGene Expression Regulation, DevelopmentalMorphogenesisWnt4 ProteinUrodelaPleurodelesWolffian DuctsApoptosis Regulatory ProteinsCaspasesCell DifferentiationNerve TissueMesonephrosCaspase 3Signal TransductionOrganogenesisZebrafishOrgan Culture TechniquesGlial Cell Line-Derived Neurotrophic FactorHomeodomain ProteinsInhibitor of Apoptosis ProteinsProto-Oncogene Proteins c-bcl-2Cell ProliferationImmunohistochemistryIn Situ Nick-End LabelingAnaplasiaDolichosDNA FragmentationAmputation StumpsKidney NeoplasmsMolecular Sequence DataWound HealingCell DedifferentiationAnimal StructuresPentosan Sulfuric Polyesterbcl-2-Associated X ProteinWnt ProteinsX-Linked Inhibitor of Apoptosis ProteinCells, CulturedCell Line, TumorKidney TubulesGene ExpressionStem CellsGenes, HomeoboxEpidermisApoptosis Inducing FactorReverse Transcriptase Polymerase Chain ReactionCell SurvivalTretinoinAmino Acid SequenceRNA, MessengerAnimals, Genetically ModifiedTranscription FactorsZebrafish ProteinsCASP8 and FADD-Like Apoptosis Regulating ProteinTime FactorsDermisCaspase 9Embryonic and Fetal DevelopmentCaspase InhibitorsCartilageProto-Oncogene ProteinsFibroblast Growth FactorsUrogenital SystemModels, BiologicalBase SequenceBody PatterningDNA, ComplementaryCaspase 8Cell DivisionMitochondriaCell LineFas Ligand ProteinTumor Suppressor Protein p53MSX1 Transcription FactorCellular MicroenvironmentEnzyme ActivationLimb BudsDNA PrimersCytochromes c