2024
High burden of viruses and bacterial pathobionts drives heightened nasal innate immunity in children
Watkins T, Green A, Amat J, Cheemarla N, Hänsel K, Lozano R, Dudgeon S, Germain G, Landry M, Schulz W, Foxman E. High burden of viruses and bacterial pathobionts drives heightened nasal innate immunity in children. Journal Of Experimental Medicine 2024, 221: e20230911. PMID: 38949638, PMCID: PMC11215523, DOI: 10.1084/jem.20230911.Peer-Reviewed Original ResearchConceptsBacterial pathobiontsRespiratory virusesBurden of virusesSARS-CoV-2Innate immune activationSARS-CoV-2 viral loadDynamic host-pathogen interactionsInnate immune responseViral coinfectionCytokine profileViral loadNasal virusImmune activationProinflammatory responseIL-1BNasopharyngeal samplesHost-pathogen interactionsImmune responseInterferon responsePathobiontsInnate immunityPaired samplesCXCL10Healthy 1-year-oldVirus
2023
Rhesus macaque Bcl-6/Bcl-xL B cell immortalization: Discovery of HIV-1 neutralizing antibodies from lymph node
Samsel J, Boswell K, Watkins T, Ambrozak D, Mason R, Yamamoto T, Ko S, Yang Y, Zhou T, Doria-Rose N, Foulds K, Roederer M, Mascola J, Kwong P, Gama L, Koup R. Rhesus macaque Bcl-6/Bcl-xL B cell immortalization: Discovery of HIV-1 neutralizing antibodies from lymph node. Journal Of Immunological Methods 2023, 516: 113445. PMID: 36848985, DOI: 10.1016/j.jim.2023.113445.Peer-Reviewed Original ResearchConceptsB cellsLymph nodesRhesus macaquesHIV-1HIV-1 vaccineExpression of CD40Surface B-cell receptorB-cell immortalizationPre-clinical testingB cell receptorIL-21CD40 ligandAntigen specificityBCL-6Cell receptorIdentification of cellsAntibodiesFunctional assaysCell immortalizationBcl-xLAntigen probeCellsRetroviral vectorsSomatic hypermutationAntibody discoveryNasal host response-based screening for undiagnosed respiratory viruses: a pathogen surveillance and detection study
Cheemarla N, Hanron A, Fauver J, Bishai J, Watkins T, Brito A, Zhao D, Alpert T, Vogels C, Ko A, Schulz W, Landry M, Grubaugh N, van Dijk D, Foxman E. Nasal host response-based screening for undiagnosed respiratory viruses: a pathogen surveillance and detection study. The Lancet Microbe 2023, 4: e38-e46. PMID: 36586415, PMCID: PMC9835789, DOI: 10.1016/s2666-5247(22)00296-8.Peer-Reviewed Original ResearchConceptsRespiratory virus panelPg/mLCXCL10 concentrationsSARS-CoV-2Bacterial pathobiontsRespiratory virusesSARS-CoV-2 negative samplesViral respiratory infectionsSARS-CoV-2 positive samplesClinical virology laboratoryHealth care systemVirus-positive samplesQuantitative RT-PCRInfluenza C virusSymptomatic patientsRespiratory infectionsSeasonal coronavirusesNasopharyngeal swabsVirus panelC virusCommon virusesCXCL10Host responseInterferon responseVirology laboratory
2022
Application of B cell immortalization for the isolation of antibodies and B cell clones from vaccine and infection settings
Boswell K, Watkins T, Cale E, Samsel J, Andrews S, Ambrozak D, Driscoll J, Messina M, Narpala S, Hopp C, Cagigi A, Casazza J, Yamamoto T, Zhou T, Schief W, Crompton P, Ledgerwood J, Connors M, Gama L, Kwong P, McDermott A, Mascola J, Koup R. Application of B cell immortalization for the isolation of antibodies and B cell clones from vaccine and infection settings. Frontiers In Immunology 2022, 13: 1087018. PMID: 36582240, PMCID: PMC9794141, DOI: 10.3389/fimmu.2022.1087018.Peer-Reviewed Original ResearchConceptsB cell subsetsB cell clonesB-cell immortalizationMemory B cellsB cellsCell subsetsCell clonesHIV-1 infected individualsMemory B cell subsetsDifferent B cell populationsIsolation of antibodiesRecent malaria infectionFuture vaccine designCell immortalizationB cell populationsB cell survivalMalaria infectionPrimary B cellsVaccine settingInfection settingsImmunoglobulin secretionHealthy individualsTonsil tissueAntibody secretionBCL-6
2021
Dynamic innate immune response determines susceptibility to SARS-CoV-2 infection and early replication kinetics
Cheemarla NR, Watkins TA, Mihaylova VT, Wang B, Zhao D, Wang G, Landry ML, Foxman EF. Dynamic innate immune response determines susceptibility to SARS-CoV-2 infection and early replication kinetics. Journal Of Experimental Medicine 2021, 218: e20210583. PMID: 34128960, PMCID: PMC8210587, DOI: 10.1084/jem.20210583.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAngiotensin-Converting Enzyme 2Case-Control StudiesChemokine CXCL10COVID-19Disease SusceptibilityFemaleGene Expression ProfilingHost-Pathogen InteractionsHumansImmunity, InnateInterferonsMaleMiddle AgedNasopharynxPicornaviridae InfectionsSARS-CoV-2Viral LoadVirus ReplicationConceptsSARS-CoV-2 infectionSARS-CoV-2 exposureSARS-CoV-2Interferon-stimulated genesUpper respiratory tractRespiratory tractEarly SARS-CoV-2 infectionDynamic innate immune responseViral replicationSARS-CoV-2 replicationPatient nasopharyngeal samplesInnate immune responseLow infectious doseViral loadNasopharyngeal samplesImmune responseInfectious doseISG responseAntiviral responseInfection progressionViral transmissionLevel correlatesInfectionISG inductionInitial replication