IntestinesIntestinal MucosaImmunity, MucosalImmune SystemPeyer's PatchesImmunoglobulin A, SecretoryIntestinal SecretionsImmunoglobulin ATyphoid-Paratyphoid VaccinesImmunity, InnateInflammatory Bowel DiseasesImmune ToleranceIntestine, SmallGerm-Free LifeDendritic CellsAntibody-Producing CellsCytokinesMice, Inbred C57BLThoracic DuctToxoidsT-LymphocytesColitisLymphoid TissueEscherichia coli VaccinesMice, Inbred BALB CMesenteryProbioticsSpleenMice, KnockoutAdministration, OralLymph NodesMetagenomeInflammationCD4-Positive T-LymphocytesAntibody FormationCholera ToxinT-Lymphocytes, RegulatoryIleumNod2 Signaling Adaptor ProteinColonImmunizationFecesDisease Models, AnimalInterleukin-10HomeostasisAntibodies, BacterialMacrophagesImmunity, CellularAntigens, BacterialColitis, UlcerativeLymphocyte ActivationImmunityImmune EvasionAdaptive ImmunityLymphocytesInterferon-gammaCells, CulturedAntigen-Antibody ComplexImmune SeraImmune System DiseasesFlow CytometryKiller Cells, NaturalSignal TransductionB-LymphocytesImmunoglobulin GModels, ImmunologicalMonocytesToll-Like ReceptorsImmune Complex DiseasesLeukocytes, MononuclearLeukocytesLipopolysaccharidesAdjuvants, ImmunologicImmune System ProcessesAntigens, CDImmunomodulationImmunotherapyGene Expression RegulationEnzyme-Linked Immunosorbent AssayTumor Necrosis Factor-alphaChemokinesImmunity, HumoralCell LineTh1 CellsT-Lymphocyte SubsetsPhagocytosisMice, TransgenicImmunologic FactorsNeutrophilsInflammation MediatorsMicrogliaLymphocyte SubsetsHost-Pathogen InteractionsLymphocytes, Tumor-InfiltratingTh2 CellsAutoimmune DiseasesCell MovementRNA, MessengerToll-Like Receptor 4Tumor Escape