2020
CD4+ follicular regulatory T cells optimize the influenza virus–specific B cell response
Lu Y, Jiang R, Freyn AW, Wang J, Strohmeier S, Lederer K, Locci M, Zhao H, Angeletti D, O’Connor K, Kleinstein SH, Nachbagauer R, Craft J. CD4+ follicular regulatory T cells optimize the influenza virus–specific B cell response. Journal Of Experimental Medicine 2020, 218: e20200547. PMID: 33326020, PMCID: PMC7748821, DOI: 10.1084/jem.20200547.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibody FormationAntigensB-LymphocytesCD4 AntigensDisease Models, AnimalEpitopesForkhead Transcription FactorsGerminal CenterHumansImmunityImmunologic MemoryInfluenza, HumanInfluenzavirus BIntegrasesMice, Inbred C57BLOrthomyxoviridae InfectionsReceptors, Antigen, B-CellSpecies SpecificityT-Lymphocytes, RegulatoryVaccinationConceptsB cell responsesGerminal center B cell responsesFollicular regulatory T cellsRegulatory T cellsTfr cellsCell responsesT cellsViral challengeHumoral memoryVirus-specific B cell responsesAntigen-specific B cell responsesFollicular helper T cellsHA stalk regionHelper T cellsInfluenza virus infectionGerminal center developmentAntibody responsePlasma cellsVirus infectionImmunization modelAntibody productionBCR repertoireInfluenza virusRepeated exposureInfluenza virus glycoproteins
2015
Investigating the Antigen Specificity of Multiple Sclerosis Central Nervous System-Derived Immunoglobulins
Willis SN, Stathopoulos P, Chastre A, Compton SD, Hafler DA, O’Connor K. Investigating the Antigen Specificity of Multiple Sclerosis Central Nervous System-Derived Immunoglobulins. Frontiers In Immunology 2015, 6: 600. PMID: 26648933, PMCID: PMC4663633, DOI: 10.3389/fimmu.2015.00600.Peer-Reviewed Original ResearchCentral nervous systemB cell responsesMultiple sclerosisB cellsCNS tissueCerebrospinal fluidAntigen specificityNervous systemCell responsesAntigen-driven B cell responsesImmune cell infiltrationMS central nervous systemTertiary lymphoid structuresResident B cellsAntigen-driven responseB cell clonesMS brainsLymphoid structuresCell infiltrationRecombinant human immunoglobulinNeurofilament lightCNS-derived cell linesCandidate antigensAntigen arraysDisease pathology
2014
Interleukin-10+ Regulatory B Cells Arise Within Antigen-Experienced CD40+ B Cells to Maintain Tolerance to Islet Autoantigens
Kleffel S, Vergani A, Tezza S, Nasr M, Niewczas MA, Wong S, Bassi R, D’Addio F, Schatton T, Abdi R, Atkinson M, Sayegh MH, Wen L, Wasserfall CH, O’Connor K, Fiorina P. Interleukin-10+ Regulatory B Cells Arise Within Antigen-Experienced CD40+ B Cells to Maintain Tolerance to Islet Autoantigens. Diabetes 2014, 64: 158-171. PMID: 25187361, PMCID: PMC4274804, DOI: 10.2337/db13-1639.Peer-Reviewed Original ResearchConceptsIslet autoantigensB cellsT1D patientsInterleukin-10IL-10-producing B cellsHyperglycemic nonobese diabetic miceRegulatory B-cell responsesAutoreactive T cell responsesT cell-mediated responsesRole of BregsB-cell depletionRegulatory B cellsNonobese diabetic (NOD) miceNOD mouse modelT cell responsesB cell responsesType 1 diabetesB cell receptorAdoptive transferDiabetic miceAutoimmune diseasesHuman ILHyperglycemic miceMouse modelBregs
2009
The Microenvironment of Germ Cell Tumors Harbors a Prominent Antigen-Driven Humoral Response
Willis SN, Mallozzi SS, Rodig SJ, Cronk KM, McArdel SL, Caron T, Pinkus GS, Lovato L, Shampain KL, Anderson DE, Anderson RC, Bruce JN, O'Connor KC. The Microenvironment of Germ Cell Tumors Harbors a Prominent Antigen-Driven Humoral Response. The Journal Of Immunology 2009, 182: 3310-3317. PMID: 19234230, DOI: 10.4049/jimmunol.0803424.Peer-Reviewed Original ResearchConceptsImmune cell infiltratesGerm cell tumorsHumoral immune responseCell infiltrateB cellsCell tumorsImmune responseGerm cell tumor biologyGerm cell tumor subtypesTumor-associated B cellsTumor-infiltrating B cellsTumor microenvironmentSpecific humoral immune responseRole B cellsB cell clonal expansionB-cell infiltratesB cell responsesCell clonal expansionB cell maturationSignificant somatic mutationsLymphoid folliclesHumoral responsePeripheral bloodTumor subtypesCardinal features