Epithelial CellsCell DifferentiationEpitheliumCells, CulturedCell LineRNA, MessengerSignal TransductionCell DivisionGene Expression RegulationStem CellsTranscription FactorsCell ProliferationGene Expression Regulation, DevelopmentalImmunohistochemistryRespiratory MucosaReverse Transcriptase Polymerase Chain ReactionIntestinal MucosaMolecular Sequence DataGene ExpressionSex DifferentiationCell LineageMice, Inbred C57BLBase SequenceBronchiEmbryonic Stem CellsBlotting, WesternDNA-Binding ProteinsApoptosisMammary Glands, AnimalPhenotypeTretinoinTransfectionTumor Cells, CulturedMice, TransgenicCell Culture TechniquesMice, KnockoutEpithelium, CornealKeratinsUp-RegulationMembrane ProteinsTranscription, GeneticTime FactorsLens, CrystallineCaco-2 CellsIn Situ HybridizationFluorescent Antibody TechniqueHomeodomain ProteinsCell PolarityPromoter Regions, GeneticCell SurvivalEpithelioid CellsFlow CytometryDown-RegulationTrans-ActivatorsAntigens, DifferentiationKeratinocytesGene Expression ProfilingCell Transformation, NeoplasticCell AdhesionCell Line, TumorModels, BiologicalLungCell MovementAmino Acid SequenceCell Line, TransformedTransforming Growth Factor betaOsteoblastsPhosphorylationDNA PrimersOsteogenesisMutationBacterial AdhesionMesodermMorphogenesisMesenchymal Stromal CellsMicroscopy, ElectronCoculture TechniquesRNA, Small InterferingInterleukin-8Cell CyclePulmonary AlveoliAdipogenesisMammary Glands, HumanEmbryo, MammalianIntestinesCadherinsColonNuclear ProteinsNeuronsBlotting, NorthernProto-Oncogene ProteinsBreastMicroscopy, FluorescenceProtein BindingFibroblastsMyoblastsCarrier ProteinsRepressor ProteinsEpidermisBone Marrow Cells