Lymphoid TissueLymphoma, B-Cell, Marginal ZonePalatine TonsilPeyer's PatchesLymph NodesSpleenChemokine CCL21Chemokine CXCL13B-LymphocytesImmunity, MucosalThymus GlandAppendixT-LymphocytesMesenteryMucous MembraneLymphotoxin-betaLymphocytesReceptors, CXCR5Chemokine CCL19Lymphotoxin beta ReceptorDendritic CellsReceptors, CCR7CD4-Positive T-LymphocytesLymphotoxin-alphaMice, Inbred BALB CMice, Inbred C57BLChoristomaNasal MucosaIntestinal MucosaImmunohistochemistryGerminal CenterAdenoidsDendritic Cells, FollicularChemokines, CCLymphomaLymphoma, B-CellLymphocyte ActivationPseudolymphomaChromosomes, Human, Pair 18MucoproteinsImmunoglobulin AImmunophenotypingPlasma CellsReceptors, Lymphocyte HomingSimian Acquired Immunodeficiency SyndromeReceptors, ChemokineFlow CytometryHelicobacter pyloriStomach NeoplasmsImmunologic MemoryCell MovementThoracic DuctOrbital NeoplasmsIntestinesL-SelectinT-Lymphocyte SubsetsEndothelium, LymphaticHelicobacter InfectionsImmunoenzyme TechniquesHIV-1Simian immunodeficiency virusLymphocyte SubsetsImmunoglobulinsAntibodies, MonoclonalCD8-Positive T-LymphocytesAntibody-Producing CellsBursa of FabriciusScrapieHelicobacter heilmanniiLymphoma, Non-HodgkinAntigens, CDB-Lymphocyte SubsetsMacaca mulattaMice, TransgenicGerm-Free LifeNuclear Receptor Subfamily 1, Group F, Member 3Wasting Disease, ChronicIntestine, SmallChromosomes, Human, Pair 11CD4-CD8 RatioConjunctival NeoplasmsTranslocation, GeneticBronchiAntigens, CD3Lymphocyte CountMice, KnockoutAdministration, IntranasalGastric MucosaPropylene GlycolsAntigensImmunoglobulin A, SecretoryLymphotoxin alpha1, beta2 HeterotrimerPrPSc ProteinsAntibody FormationChemokines, CXCConjunctivaImmune SystemVirus ReplicationLacrimal ApparatusOrgan Specificity