Cell DifferentiationEpithelial CellsEpitheliumKeratinsKeratinocytesGene Expression Regulation, DevelopmentalCells, CulturedTranscription FactorsKeratins, Type ISarcoma, SynovialMesodermStem CellsSignal TransductionImmunohistochemistryCell LineEpidermisMorphogenesisGene Expression RegulationCell LineageCell DivisionCell ProliferationRNA, MessengerTretinoinMammary Glands, AnimalHomeodomain ProteinsIn Situ HybridizationReverse Transcriptase Polymerase Chain ReactionForeskinMice, TransgenicCadherinsGene ExpressionPhenotypeDNA-Binding ProteinsMolecular Sequence DataPalateEpithelium, CornealBase SequenceMembrane ProteinsLimbus CorneaeTrans-ActivatorsSex Differentiationbeta CateninTumor Cells, CulturedCell Culture TechniquesMice, Inbred C57BLMice, KnockoutCell Transformation, NeoplasticDown-RegulationEmbryonic Stem CellsMouth MucosaEmbryo, MammalianTranscription, GeneticPromoter Regions, GeneticGene Expression ProfilingTight JunctionsFluorescent Antibody TechniqueClaudinsCell ShapeBlotting, WesternOligonucleotide Array Sequence AnalysisOrgan Culture TechniquesCell PolarityIntermediate Filament ProteinsTransfectionCheekWnt ProteinsFibroblast Growth Factor 7Zonula Occludens-1 ProteinLungUp-RegulationWilms TumorPapillomaviridaeIntestinal MucosaNuclear ProteinsApoptosisCell Line, TumorOccludinEpithelial-Mesenchymal TransitionMicroscopy, ElectronLamininModels, BiologicalMice, Mutant StrainsKidneySkinAdherens JunctionsCytoskeletal ProteinsMutationFibroblast Growth Factor 10Transforming Growth Factor betaBiological MarkersGene Expression Regulation, NeoplasticImmunoenzyme TechniquesEmbryonic and Fetal DevelopmentRegenerationNephronsProtein IsoformsDNA PrimersTime FactorsOsteogenesisOsteoblasts