2023
Age-dependent impairment in antibody responses elicited by a homologous CoronaVac booster dose
Filardi B, Monteiro V, Schwartzmann P, do Prado Martins V, Zucca L, Baiocchi G, Malik A, Silva J, Hahn A, Chen N, Pham K, Pérez-Then E, Miric M, Brache V, Cochon L, Larocca R, Della Rosa Mendez R, Silveira D, Pinto A, Croda J, Yildirim I, Omer S, Ko A, Vermund S, Grubaugh N, Iwasaki A, Lucas C, Initiative Y, Vogels C, Breban M, Koch T, Chaguza C, Tikhonova I, Castaldi C, Mane S, De Kumar B, Ferguson D, Kerantzas N, Peaper D, Landry M, Schulz W. Age-dependent impairment in antibody responses elicited by a homologous CoronaVac booster dose. Science Translational Medicine 2023, 15: eade6023. PMID: 36791210, DOI: 10.1126/scitranslmed.ade6023.Peer-Reviewed Original ResearchConceptsBooster doseAntibody responseNeutralization titersVirus-specific IgG titersOlder adultsAntiviral humoral immunityPlasma antibody responsesHigh-risk populationSARS-CoV-2 spikeYears of ageAge-dependent impairmentHeterologous regimensBooster dosesBooster vaccineCoronaVac vaccineIgG titersProtective immunityHumoral immunityHumoral responseCoronaVacOmicron waveBooster strategyAge groupsEarly controlVaccine
2022
Unadjuvanted intranasal spike vaccine elicits protective mucosal immunity against sarbecoviruses
Mao T, Israelow B, Peña-Hernández MA, Suberi A, Zhou L, Luyten S, Reschke M, Dong H, Homer RJ, Saltzman WM, Iwasaki A. Unadjuvanted intranasal spike vaccine elicits protective mucosal immunity against sarbecoviruses. Science 2022, 378: eabo2523. PMID: 36302057, PMCID: PMC9798903, DOI: 10.1126/science.abo2523.Peer-Reviewed Original ResearchConceptsRespiratory mucosaSystemic immunityLethal SARS-CoV-2 infectionAcute respiratory syndrome coronavirus 2 pandemicSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemicSARS-CoV-2 infectionProtective mucosal immunityCross-reactive immunityT cell responsesCoronavirus 2 pandemicPrimary vaccinationParenteral vaccinesMucosal immunityVaccine strategiesRespiratory tractImmunoglobulin AMemory BImmune memoryPartial immunityCell responsesPoor immunityImmunitySpike proteinMucosaVaccineOperation Nasal Vaccine—Lightning speed to counter COVID-19
Topol EJ, Iwasaki A. Operation Nasal Vaccine—Lightning speed to counter COVID-19. Science Immunology 2022, 7: eadd9947. PMID: 35862488, DOI: 10.1126/sciimmunol.add9947.Peer-Reviewed Original ResearchNeutralizing antibodies against the SARS-CoV-2 Delta and Omicron variants following heterologous CoronaVac plus BNT162b2 booster vaccination
Pérez-Then E, Lucas C, Monteiro VS, Miric M, Brache V, Cochon L, Vogels CBF, Malik AA, De la Cruz E, Jorge A, De los Santos M, Leon P, Breban MI, Billig K, Yildirim I, Pearson C, Downing R, Gagnon E, Muyombwe A, Razeq J, Campbell M, Ko AI, Omer SB, Grubaugh ND, Vermund SH, Iwasaki A. Neutralizing antibodies against the SARS-CoV-2 Delta and Omicron variants following heterologous CoronaVac plus BNT162b2 booster vaccination. Nature Medicine 2022, 28: 481-485. PMID: 35051990, PMCID: PMC8938264, DOI: 10.1038/s41591-022-01705-6.Peer-Reviewed Original ResearchConceptsTwo-dose regimenOmicron variantVaccine boosterMRNA vaccinesNeutralization activityDelta variantTwo-dose mRNA vaccinesVirus-specific antibody levelsSARS-CoV-2 Omicron variantMRNA vaccine boosterNeutralization of OmicronNumerous spike mutationsSARS-CoV-2 DeltaPotent neutralization activityInfection-induced immunityCOVID-19 vaccineBNT162b2 boosterBooster vaccinationPrime vaccinationAntibody levelsAntibody titersHumoral immunityImmune escapeInactivated vaccinesVaccine
2021
High-resolution epitope mapping and characterization of SARS-CoV-2 antibodies in large cohorts of subjects with COVID-19
Haynes WA, Kamath K, Bozekowski J, Baum-Jones E, Campbell M, Casanovas-Massana A, Daugherty PS, Dela Cruz CS, Dhal A, Farhadian SF, Fitzgibbons L, Fournier J, Jhatro M, Jordan G, Klein J, Lucas C, Kessler D, Luchsinger LL, Martinez B, Catherine Muenker M, Pischel L, Reifert J, Sawyer JR, Waitz R, Wunder EA, Zhang M, Iwasaki A, Ko A, Shon J. High-resolution epitope mapping and characterization of SARS-CoV-2 antibodies in large cohorts of subjects with COVID-19. Communications Biology 2021, 4: 1317. PMID: 34811480, PMCID: PMC8608966, DOI: 10.1038/s42003-021-02835-2.Peer-Reviewed Original ResearchConceptsSevere acute respiratory syndrome coronavirus 2Acute respiratory syndrome coronavirus 2SARS-CoV-2 antibodiesRespiratory syndrome coronavirus 2SARS-CoV-2 epitopesSyndrome coronavirus 2SARS-CoV-2 strainsHigh-resolution epitope mappingCOVID-19SARS-CoV-2SARS-CoV-2 mutantsCoronavirus 2Antibody responseEffective vaccineImmune responseNeutralization activitySevere diseaseLarge cohortEpitope regionsAntibody epitopesEpitope mappingRelated coronavirusesTherapyVaccineViral proteomeCOVID-19 vaccines: Keeping pace with SARS-CoV-2 variants
Cevik M, Grubaugh ND, Iwasaki A, Openshaw P. COVID-19 vaccines: Keeping pace with SARS-CoV-2 variants. Cell 2021, 184: 5077-5081. PMID: 34534444, PMCID: PMC8445744, DOI: 10.1016/j.cell.2021.09.010.Peer-Reviewed Original ResearchPrevention of host-to-host transmission by SARS-CoV-2 vaccines
Mostaghimi D, Valdez CN, Larson HT, Kalinich CC, Iwasaki A. Prevention of host-to-host transmission by SARS-CoV-2 vaccines. The Lancet Infectious Diseases 2021, 22: e52-e58. PMID: 34534512, PMCID: PMC8439617, DOI: 10.1016/s1473-3099(21)00472-2.Peer-Reviewed Original ResearchConceptsSARS-CoV-2SARS-CoV-2 vaccinesSymptomatic COVID-19Population-level dataVaccine's abilityIntramuscular vaccineImmunological mechanismsVaccine strategiesVaccine capacityPrimary infectionNatural courseClinical trialsObservational studyRespiratory epitheliumReal-world settingViral titresViral replicationVaccineVaccine distributionInfectionCOVID-19Host transmissionTrialsPopulation-level effectsMucosaThe first 12 months of COVID-19: a timeline of immunological insights
Carvalho T, Krammer F, Iwasaki A. The first 12 months of COVID-19: a timeline of immunological insights. Nature Reviews Immunology 2021, 21: 245-256. PMID: 33723416, PMCID: PMC7958099, DOI: 10.1038/s41577-021-00522-1.Peer-Reviewed Original ResearchMeSH KeywordsAngiotensin-Converting Enzyme 2Antibodies, ViralAutoantibodiesCOVID-19COVID-19 Drug TreatmentCOVID-19 SerotherapyCOVID-19 VaccinesDexamethasoneDrug DevelopmentGlucocorticoidsHumansImmunization, PassiveImmunologic FactorsInterferon Type IReceptors, CoronavirusSARS-CoV-2Systemic Inflammatory Response SyndromeConceptsSARS-CoV-2Acute respiratory syndrome coronavirus 2Respiratory syndrome coronavirus 2Numerous candidate vaccinesSyndrome coronavirus 2Coronavirus disease 2019Peer-reviewed journalsCandidate vaccinesCoronavirus 2Pneumonia casesDisease 2019Immune responseViral infectionImmunological insightsNovel coronavirusInitial reportCOVID-19First yearMonthsHighlight gapsPreprint serversUnidentified originFuture investigationsVaccineInfection
2020
Why and How Vaccines Work
Iwasaki A, Omer SB. Why and How Vaccines Work. Cell 2020, 183: 290-295. PMID: 33064982, PMCID: PMC7560117, DOI: 10.1016/j.cell.2020.09.040.Peer-Reviewed Original ResearchThe potential danger of suboptimal antibody responses in COVID-19
Iwasaki A, Yang Y. The potential danger of suboptimal antibody responses in COVID-19. Nature Reviews Immunology 2020, 20: 339-341. PMID: 32317716, PMCID: PMC7187142, DOI: 10.1038/s41577-020-0321-6.Peer-Reviewed Original Research
2016
Exploiting Mucosal Immunity for Antiviral Vaccines
Iwasaki A. Exploiting Mucosal Immunity for Antiviral Vaccines. Annual Review Of Immunology 2016, 34: 575-608. PMID: 27168245, DOI: 10.1146/annurev-immunol-032414-112315.Peer-Reviewed Original ResearchConceptsMucosal immunityHuman immunodeficiency virusEffective immune protectionHost immune responseHerpes simplex virusImmunodeficiency virusMucosal vaccinesImmune protectionSuccessful vaccineImmune responseSimplex virusAntiviral vaccinesMucosal surfacesVaccine developmentVaccine designInfluenza virusFirst lineVaccineViral pathogensImmunityViral diseasesVirusDangerous pathogensPathogensDisease
2013
Generating protective immunity against genital herpes
Shin H, Iwasaki A. Generating protective immunity against genital herpes. Trends In Immunology 2013, 34: 487-494. PMID: 24012144, PMCID: PMC3819030, DOI: 10.1016/j.it.2013.08.001.Peer-Reviewed Original ResearchConceptsGenital herpesHerpes simplex virus infectionSimplex virus infectionSignificant risk factorsClinical vaccine trialsRecurrent symptomsHSV infectionProtective immunityViral sheddingVaccine trialsRisk factorsChronic diseasesVirus infectionHIV-1Clear infectionAntiviral drugsHost responseHerpesVaccine designInfectionMillions of peopleSpread of diseaseDiseaseRecent studiesVaccine
2012
Unique features of antiviral immune system of the vaginal mucosa
Kumamoto Y, Iwasaki A. Unique features of antiviral immune system of the vaginal mucosa. Current Opinion In Immunology 2012, 24: 411-416. PMID: 22673876, PMCID: PMC3423557, DOI: 10.1016/j.coi.2012.05.006.Peer-Reviewed Original ResearchConceptsVaginal mucosaVirus-specific CD4Development of vaccinesAntiviral immune systemHuman papillomavirusGenital tractT cellsImmune responseAdaptive immunityHuman vaccinesMucosal organsImmune systemVaccineAntiviral defenseMucosaVaginaVirusRecent studiesWide spectrumVast majorityCurrent understandingCD8CD4PapillomavirusImmunobiology
2006
The Use of Bone Marrow-Chimeric Mice in Elucidating Immune Mechanisms
Iwasaki A. The Use of Bone Marrow-Chimeric Mice in Elucidating Immune Mechanisms. Methods In Molecular Medicine 2006, 127: 281-292. PMID: 16988461, DOI: 10.1385/1-59745-168-1:281.Peer-Reviewed Original Research