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
Double-take: SARS-CoV-2 has evolved to evade human innate immunity, twice
Foxman E. Double-take: SARS-CoV-2 has evolved to evade human innate immunity, twice. Trends In Immunology 2023, 45: 1-3. PMID: 38143224, DOI: 10.1016/j.it.2023.12.001.Peer-Reviewed Original ResearchPLSCR1 is a cell-autonomous defence factor against SARS-CoV-2 infection
Xu D, Jiang W, Wu L, Gaudet R, Park E, Su M, Cheppali S, Cheemarla N, Kumar P, Uchil P, Grover J, Foxman E, Brown C, Stansfeld P, Bewersdorf J, Mothes W, Karatekin E, Wilen C, MacMicking J. PLSCR1 is a cell-autonomous defence factor against SARS-CoV-2 infection. Nature 2023, 619: 819-827. PMID: 37438530, PMCID: PMC10371867, DOI: 10.1038/s41586-023-06322-y.Peer-Reviewed Original ResearchConceptsC-terminal β-barrel domainSpike-mediated fusionCell-autonomous defenseLarge-scale exome sequencingΒ-barrel domainGenome-wide CRISPRSARS-CoV-2 infectionHost cell cytosolScramblase activityPhospholipid scramblaseLive SARS-CoV-2 infectionHuman lung epitheliumPLSCR1SARS-CoV-2 USASingle-molecule switchingSARS-CoV-2 variantsExome sequencingHuman populationRestriction factorsViral RNANew SARS-CoV-2 variantsSARS-CoV-2Robust activityLung epitheliumDefense factorsRespiratory viruses: New frontiers—a Keystone Symposia report
Cable J, Sun J, Cheon I, Vaughan A, Castro I, Stein S, López C, Gostic K, Openshaw P, Ellebedy A, Wack A, Hutchinson E, Thomas M, Langlois R, Lingwood D, Baker S, Folkins M, Foxman E, Ward A, Schwemmle M, Russell A, Chiu C, Ganti K, Subbarao K, Sheahan T, Penaloza‐MacMaster P, Eddens T. Respiratory viruses: New frontiers—a Keystone Symposia report. Annals Of The New York Academy Of Sciences 2023, 1522: 60-73. PMID: 36722473, PMCID: PMC10580159, DOI: 10.1111/nyas.14958.Peer-Reviewed Original ResearchConceptsRespiratory virusesSARS-CoV-2Specific viral strainsMechanisms of diseaseAcute infectionChronic diseasesCommon causeEffective treatmentNovel treatmentsVirus-host interactionsPrevention strategiesTherapy efficacyViral strainsVulnerable populationsPrevention approachesVirusDiseaseSymposium reportTreatmentViral biologyMorbidityPopulationInfectionMortalityInfluenzaNasal 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
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 replicationSingle-cell longitudinal analysis of SARS-CoV-2 infection in human airway epithelium identifies target cells, alterations in gene expression, and cell state changes
Ravindra NG, Alfajaro MM, Gasque V, Huston NC, Wan H, Szigeti-Buck K, Yasumoto Y, Greaney AM, Habet V, Chow RD, Chen JS, Wei J, Filler RB, Wang B, Wang G, Niklason LE, Montgomery RR, Eisenbarth SC, Chen S, Williams A, Iwasaki A, Horvath TL, Foxman EF, Pierce RW, Pyle AM, van Dijk D, Wilen CB. Single-cell longitudinal analysis of SARS-CoV-2 infection in human airway epithelium identifies target cells, alterations in gene expression, and cell state changes. PLOS Biology 2021, 19: e3001143. PMID: 33730024, PMCID: PMC8007021, DOI: 10.1371/journal.pbio.3001143.Peer-Reviewed Original ResearchConceptsSARS-CoV-2 infectionSARS-CoV-2Human bronchial epithelial cellsInterferon-stimulated genesCell state changesAcute respiratory syndrome coronavirus 2 infectionSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infectionSyndrome coronavirus 2 infectionCell tropismCoronavirus 2 infectionCoronavirus disease 2019Onset of infectionCell-intrinsic expressionCourse of infectionAir-liquid interface culturesHost-viral interactionsBronchial epithelial cellsSingle-cell RNA sequencingCell typesIL-1Disease 2019Human airwaysDevelopment of therapeuticsDrug AdministrationViral replication
2020
Analytical sensitivity and efficiency comparisons of SARS-CoV-2 RT–qPCR primer–probe sets
Vogels CBF, Brito AF, Wyllie AL, Fauver JR, Ott IM, Kalinich CC, Petrone ME, Casanovas-Massana A, Catherine Muenker M, Moore AJ, Klein J, Lu P, Lu-Culligan A, Jiang X, Kim DJ, Kudo E, Mao T, Moriyama M, Oh JE, Park A, Silva J, Song E, Takahashi T, Taura M, Tokuyama M, Venkataraman A, Weizman OE, Wong P, Yang Y, Cheemarla NR, White EB, Lapidus S, Earnest R, Geng B, Vijayakumar P, Odio C, Fournier J, Bermejo S, Farhadian S, Dela Cruz CS, Iwasaki A, Ko AI, Landry ML, Foxman EF, Grubaugh ND. Analytical sensitivity and efficiency comparisons of SARS-CoV-2 RT–qPCR primer–probe sets. Nature Microbiology 2020, 5: 1299-1305. PMID: 32651556, PMCID: PMC9241364, DOI: 10.1038/s41564-020-0761-6.Peer-Reviewed Original ResearchConceptsSARS-CoV-2SARS-CoV-2 RTSevere acute respiratory syndrome coronavirusAcute respiratory syndrome coronavirusViral RNA copiesPublic health laboratoriesPublic health interventionsReverse transcription-PCR assaySARS-CoV-2 diagnostic testingDiagnostic assaysTranscription-PCR assaySARS-CoV-2 evolutionQuantitative reverse transcription-PCR assaysRapid diagnostic assaysHealth laboratoriesHealth interventionsDiagnostic testingRNA copiesPrimer-probe setsAssaysLow sensitivityCritical needAnalytical sensitivityCoast-to-Coast Spread of SARS-CoV-2 during the Early Epidemic in the United States
Fauver JR, Petrone ME, Hodcroft EB, Shioda K, Ehrlich HY, Watts AG, Vogels CBF, Brito AF, Alpert T, Muyombwe A, Razeq J, Downing R, Cheemarla NR, Wyllie AL, Kalinich CC, Ott IM, Quick J, Loman NJ, Neugebauer KM, Greninger AL, Jerome KR, Roychoudhury P, Xie H, Shrestha L, Huang ML, Pitzer VE, Iwasaki A, Omer SB, Khan K, Bogoch II, Martinello RA, Foxman EF, Landry ML, Neher RA, Ko AI, Grubaugh ND. Coast-to-Coast Spread of SARS-CoV-2 during the Early Epidemic in the United States. Cell 2020, 181: 990-996.e5. PMID: 32386545, PMCID: PMC7204677, DOI: 10.1016/j.cell.2020.04.021.Peer-Reviewed Original ResearchConceptsSARS-CoV-2Federal travel restrictionsSARS-CoV-2 transmissionCOVID-19 patientsCoronavirus SARS-CoV-2SARS-CoV-2 introductionsEarly SARS-CoV-2 transmissionPattern of spreadSustained transmissionLocal surveillanceEarly epidemicInternational importationCOVID-19 outbreakUnited StatesViral genomeInternational travel patternsPatientsCritical needTravel restrictions