2022
Monospecific and bispecific monoclonal SARS-CoV-2 neutralizing antibodies that maintain potency against B.1.617
Peng L, Hu Y, Mankowski MC, Ren P, Chen RE, Wei J, Zhao M, Li T, Tripler T, Ye L, Chow RD, Fang Z, Wu C, Dong MB, Cook M, Wang G, Clark P, Nelson B, Klein D, Sutton R, Diamond MS, Wilen CB, Xiong Y, Chen S. Monospecific and bispecific monoclonal SARS-CoV-2 neutralizing antibodies that maintain potency against B.1.617. Nature Communications 2022, 13: 1638. PMID: 35347138, PMCID: PMC8960874, DOI: 10.1038/s41467-022-29288-3.Peer-Reviewed Original ResearchConceptsSARS-CoV-2Authentic SARS-CoV-2Effective therapeutic optionPotent SARS-CoV-2SARS-CoV-2 variantsVariants of concernRepertoire of therapeuticsBreakthrough infectionsTherapeutic optionsMultiple vaccinesPathogen SARS-CoV-2Delta variantB cellsPotent efficacyHumanized antibodyDistinct epitopesBispecific antibodiesOriginal virusSpike receptorStrong inhibitory activityMonoclonal antibodiesAntibodiesStrong potencyLead clonesLead antibodiesHigh-affinity, neutralizing antibodies to SARS-CoV-2 can be made without T follicular helper cells
Chen JS, Chow RD, Song E, Mao T, Israelow B, Kamath K, Bozekowski J, Haynes WA, Filler RB, Menasche BL, Wei J, Alfajaro MM, Song W, Peng L, Carter L, Weinstein JS, Gowthaman U, Chen S, Craft J, Shon JC, Iwasaki A, Wilen CB, Eisenbarth SC. High-affinity, neutralizing antibodies to SARS-CoV-2 can be made without T follicular helper cells. Science Immunology 2022, 7: eabl5652. PMID: 34914544, PMCID: PMC8977051, DOI: 10.1126/sciimmunol.abl5652.Peer-Reviewed Original ResearchConceptsSARS-CoV-2 infectionSARS-CoV-2Follicular helper cellsB cell responsesHelper cellsAntibody productionCell responsesSARS-CoV-2 vaccinationB-cell receptor sequencingSevere COVID-19Cell receptor sequencingIndependent antibodiesT cell-B cell interactionsViral inflammationAntiviral antibodiesImmunoglobulin class switchingVirus infectionGerminal centersViral infectionClonal repertoireInfectionAntibodiesClass switchingCOVID-19Patients
2021
Live imaging of SARS-CoV-2 infection in mice reveals that neutralizing antibodies require Fc function for optimal efficacy
Ullah I, Prévost J, Ladinsky MS, Stone H, Lu M, Anand SP, Beaudoin-Bussières G, Symmes K, Benlarbi M, Ding S, Gasser R, Fink C, Chen Y, Tauzin A, Goyette G, Bourassa C, Medjahed H, Mack M, Chung K, Wilen CB, Dekaban GA, Dikeakos JD, Bruce EA, Kaufmann DE, Stamatatos L, McGuire AT, Richard J, Pazgier M, Bjorkman PJ, Mothes W, Finzi A, Kumar P, Uchil PD. Live imaging of SARS-CoV-2 infection in mice reveals that neutralizing antibodies require Fc function for optimal efficacy. Immunity 2021, 54: 2143-2158.e15. PMID: 34453881, PMCID: PMC8372518, DOI: 10.1016/j.immuni.2021.08.015.Peer-Reviewed Original ResearchConceptsCOVID-19 convalescent subjectsSARS-CoV-2 infectionBioluminescence imagingK18-hACE2 miceLive bioluminescence imagingNatural killer cellsFc effector functionsSARS-CoV-2Convalescent subjectsKiller cellsPotent NAbsImmune protectionInflammatory responseEffector functionsNasal cavityNaB treatmentOptimal efficacyFc functionDepletion studiesMiceNAbsCOVID-19Direct neutralizationInfectionAntibodies