EpidermisWnt1 ProteinEmbryo, NonmammalianDrosophila ProteinsMorphogenesisDrosophilaGene Expression Regulation, DevelopmentalBody PatterningCell PolarityDrosophila melanogasterSignal TransductionMutationPlant EpidermisTranscription FactorsKeratinocytesSkinHair FollicleKeratinsMice, HairlessKeratin-10DermisSkin Physiological PhenomenaSkin NeoplasmsLangerhans CellsKeratin-14Sebaceous GlandsCell DifferentiationHairPapillomaDermatitisWound HealingSkin DiseasesDesmosomesKeratosisSkin AgingSkin AbnormalitiesIntermediate Filament ProteinsMice, Transgenic