EpitheliumBronchogenic CystCystsTracheaEpithelial CellsCiliaRespiratory MucosaMicroscopy, ElectronCell DifferentiationEpithelium, CornealSeminiferous EpitheliumRetinal Pigment EpitheliumOlfactory MucosaIntestinal MucosaImmunohistochemistryCorneaBronchiCiliary BodyIn Situ HybridizationConjunctivaNasal MucosaRNA, MessengerMetaplasiaKeratinsCells, CulturedMicroscopy, Electron, ScanningMorphogenesisOrgan Culture TechniquesMucous MembraneColonMouth MucosaGene Expression Regulation, DevelopmentalEsophagusReverse Transcriptase Polymerase Chain ReactionMice, TransgenicLungMice, Inbred C57BLMammary Glands, AnimalHistocytochemistryRabbitsTongueEye ProteinsEpithelial AttachmentUterusMesodermImmunoenzyme TechniquesLimbus CorneaeFluorescent Antibody Technique, IndirectPrecancerous ConditionsGene ExpressionFallopian TubesLens, CrystallineRetinaSignal TransductionIntestine, SmallChloridesWound HealingIntestinesChoroidMucinsTight JunctionsEndometriumBarrett EsophagusRespiratory SystemCorneal DiseasesGoblet CellsFluorescent Antibody TechniqueEyeCell DivisionPalateBlotting, WesternCell ProliferationIntercellular JunctionsMice, KnockoutTime FactorsSertoli CellsPulmonary AlveoliStem CellsBasement MembraneMembrane ProteinsCell PolarityEpididymisGene Expression RegulationTestisBruch MembraneCell LineSpermatogenesis