Germinal CenterB-LymphocytesDendritic Cells, FollicularPalatine TonsilB-Lymphocyte SubsetsProto-Oncogene Proteins c-bcl-6PhenylacetatesSomatic Hypermutation, ImmunoglobulinPlasma CellsReceptors, CXCR5SpleenLymphoma, B-CellLymphoid TissueLymphoma, Large B-Cell, DiffuseImmunoglobulin Class SwitchingLymph NodesNitrophenolsChemokine CXCL13Gene Rearrangement, B-LymphocyteGenes, ImmunoglobulinImmunoglobulin Variable RegionLymphoma, FollicularReceptors, Antigen, B-CellAntigens, CD40Immunoglobulin Heavy ChainsImmunologic MemoryAntigens, T-IndependentImmunoglobulin DPeyer's PatchesAntibody FormationCytidine DeaminaseMice, Inbred C57BLPeanut AgglutininLymphocyte ActivationImmunoglobulin MCell DifferentiationAntibody AffinityT-Lymphocytes, Helper-InducerImmunoglobulin GInducible T-Cell Co-Stimulator ProteinT-LymphocytesImmunohistochemistryPseudolymphomaHaptensMice, KnockoutNeprilysinInterferon Regulatory FactorsImmunophenotypingMolecular Sequence DataFlow CytometryMice, TransgenicChild Day Care CentersAntigenic ModulationReed-Sternberg CellsGene Rearrangement, B-Lymphocyte, Heavy ChainCD40 LigandReceptors, Complement 3dReceptors, Interleukin-21Models, ImmunologicalAntigens, CDChromosomes, Human, Pair 14HemocyaninImmunizationLymphocyte CooperationMice, Inbred BALB CHodgkin DiseaseBurkitt LymphomaBursa of FabriciusImmunoglobulinsImmunoblastic LymphadenopathyImmunity, HumoralBase SequenceLymphotoxin-betaAntigensgamma-GlobulinsLymphatic DiseasesMutationAntibody-Producing CellsDNA-Binding ProteinsSignal TransductionClone CellsImmunoenzyme TechniquesLymphotoxin-alphaCommunity Health CentersTrauma CentersTertiary Care CentersLymphomaLymphocytesAntigens, CD27Proto-Oncogene ProteinsImmunoglobulin IsotypesB-Cell Activating FactorAntibodies, MonoclonalAntigens, Differentiation, B-LymphocyteEpitopes, B-LymphocyteAntigens, DifferentiationTranslocation, GeneticAntigens, CD38Proto-Oncogene Proteins c-bcl-2Chromosomes, Human, Pair 18