EpitheliumIntestinal MucosaMucous MembraneVocal CordsIntestine, SmallColonNuclear LaminaColitisPeyer's PatchesJejunumCrohn DiseaseImmunity, MucosalColitis, UlcerativeIntestinesEpithelial CellsImmunohistochemistryLaryngeal MucosaIleumEpithelium, CornealImmunoglobulin AInflammatory Bowel DiseasesDuodenumBasement MembraneOlfactory MucosaIntegrin alpha ChainsMicroscopy, ElectronIntestine, LargeMesenterySeminiferous EpitheliumPlasma CellsGastric MucosaIleitisMice, Inbred C57BLLymphoid TissueCeliac DiseaseLymphocytesImmunoenzyme TechniquesRectumEnteritisT-LymphocytesCells, CulturedGerm-Free LifeCell CountRetinal Pigment EpitheliumBiopsyReceptors, CCRCD4-Positive T-LymphocytesGastritisMice, KnockoutHistocytochemistryDextran SulfateRespiratory MucosaMouth MucosaRNA, MessengerIntestinal DiseasesMice, Inbred BALB CMicroscopy, Electron, ScanningMacrophagesIn Situ HybridizationAntigens, CDCecumFluorescent Antibody TechniquePhonationNasal MucosaTracheaLymph NodesBronchiLymphocyte ActivationUrinary BladderAntigens, CD45Flow CytometryAntigens, CD2Cell DifferentiationEnterocolitisDisease Models, AnimalCytokinesElastic TissueMice, TransgenicEsophagusGlutensEnterocytesCell MovementDigestive SystemDendritic CellsBacterial TranslocationImmunoglobulinsAlcian BlueMucoproteinsT-Lymphocyte SubsetsAntigens, CD3Colonic DiseasesLeukocytes, MononuclearStomachSpleenInterferon-gammaAdministration, RectalTrinitrobenzenesulfonic AcidOrgan Culture TechniquesGastrointestinal TractReverse Transcriptase Polymerase Chain Reaction