Intestine, SmallAdenocarcinomaIntestinesIntestine, LargeIntestinal MucosaJejunumIntestinal AbsorptionAdenocarcinoma, MucinousIleumIntestinal NeoplasmsLung NeoplasmsPancreatic NeoplasmsEsophageal NeoplasmsDuodenumAdenocarcinoma, PapillaryBarrett EsophagusCarcinoma, Pancreatic DuctalStomach NeoplasmsImmunohistochemistryAdenocarcinoma, Bronchiolo-AlveolarMicrovilliColonCardiaColonic NeoplasmsJejunal NeoplasmsIleal NeoplasmsEnterocytesIntestinal DiseasesDigestive SystemRNA, MessengerTumor Markers, BiologicalStomachGastrointestinal MotilityEsophagogastric JunctionEpitheliumSucraseDuodenal NeoplasmsNeoplasm StagingPaneth CellsCell Line, TumorPrognosisGene Expression Regulation, NeoplasticMucinsCecumTissue DistributionKeratin-7SwineGerm-Free LifeMolecular Sequence DataPrecancerous ConditionsNeoplasms, Multiple PrimaryCecal NeoplasmsCarcinoma, Squamous CellCaco-2 CellsGastrointestinal TransitEndometrial NeoplasmsTime FactorsReverse Transcriptase Polymerase Chain ReactionImmunoenzyme TechniquesLiverMyenteric PlexusMice, Inbred C57BLSerous MembraneOrgan SpecificityIntestinal SecretionsGastrointestinal ContentsTumor Cells, CulturedDigestionEpithelial CellsRats, Inbred StrainsDigestive System Physiological PhenomenaEnteritisAdenomaDisaccharidasesMucin-2MetaplasiaProstatic NeoplasmsPancreasAnimals, SucklingGastrointestinal TractBase SequenceColorectal NeoplasmsCarcinoma, Signet Ring CellGastrointestinal NeoplasmsCarcinoma, EndometrioidMammary Neoplasms, ExperimentalNeoplasm ProteinsNeoplasm InvasivenessEsophagusAdenocarcinoma, Clear CellBiopsyMutationRectal NeoplasmsFatal OutcomeRats, WistarRats, Sprague-DawleyGene Expression ProfilingBiological TransportMesenteryGastric Mucosa