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MCMV-based vaccine vectors expressing full-length viral proteins provide long-term humoral immune protection upon a single-shot vaccination

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Cellular & Molecular Immunology 2022年第2期19卷 234-244页

作者： Yeonsu Kim Xiaoyan Zheng Kathrin Eschke M.Zeeshan Chaudhry Federico Bertoglio Adriana Tomić Astrid Krmpotić Markus Hoffmann Yotam Bar-On julia boehme Dunja Bruder Thomas Ebensen Linda Brunotte Stephan Ludwig Martin Messerle Carlos Guzman Ofer Mandelboim Michael Hust Stefan Pöhlmann Stipan Jonjić LukaČičin-Šain Department of Viral Immunology Helmholtz Centre for Infection Research(HZI)BraunschweigGermany Department of Biotechnology Institut für BiochemieBiotechnologie und BioinformatikTechnischen Universität BraunschweigBraunschweigGermany Oxford Vaccine Group University of OxfordOxfordUK Center for Proteomics University of RijekaFaculty of MedicineRijekaCroatia Infection Biology Unit German Primate CenterGöttingenGermany Faculty of Biology and Psychology Georg-August-University GöttingenGöttingenGermany Department of Immunology Rappaport Faculty of MedicineTechnion-Israel Institute of TechnologyHaifaIsrael Infection Immunology Institute for Medical Microbiology and Hospital HygieneHealth Campus ImmunologyInfectiology and InflammationOtto-von-Guericke-University MagdeburgMagdeburgGermanyImmune RegulationHelmholtz Centre for Infection ResearchBraunschweigGermany Department of Vaccinology and Applied Microbiology Helmholtz Centre for Infection ResearchBraunschweigGermany Institute of Virology Medical University MünsterMünsterGermany Institute of Virology Hannover Medical School(MHH)HannoverGermany German Centre for Infection Research(DZIF) Hannover-Braunschweig SiteHannoverGermany Centre for Individualized Infection medicine(CiiM) a joint venture of HZI and MHHHannoverGermany

Global pandemics caused by influenza or coronaviruses cause severe disruptions to public health and lead to high morbidity and mortality.There remains a medical need for vaccines against these pathogens.CMV(cytomegalovirus)is aβ-herpesvirus that induces uniquely robust immune responses in which remarkably large populations of antigen-specific CD8+T cells are maintained for a lifetime.Hence,CMV has been proposed and investigated as a novel vaccine vector for expressing antigenic peptides or proteins to elicit protective cellular immune responses against numerous pathogens.We generated two recombinant murine CMV(MCMV)vaccine vectors expressing hemagglutinin(HA)of influenza A virus(MCMV^(HA))or the spike protein of severe acute respiratory syndrome coronavirus 2(MCMV^(S)).A single injection of MCMVs expressing either viral protein induced potent neutralizing antibody responses,which strengthened over time.Importantly,MCMV^(HA)-vaccinated mice were protected from illness following challenge with the influenza virus,and we excluded that this protection was due to the effects of memory T cells.Conclusively,we show here that MCMV vectors induce not only long-term cellular immunity but also humoral responses that provide long-term immune protection against clinically relevant respiratory pathogens.

关键词： Vaccine vector SARS-CoV-2 Influenza Cytomegalovirus humoral imunity

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IL-33: a jack of all trades in the orchestration of respiratory antibacterial immunity

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Cellular & Molecular Immunology 2017年第11期14卷 875-877页

作者： julia D boehme Dunja Bruder Infection Immunology Group Institute of Medical Microbiology and Hospital HygieneOtto-von-Guericke UniversityMagdeburgGermany Immune Regulation Group Department of Immune ControlHelmholtz Centre for Infection ResearchBraunschweigGermany

Influenza A virus(IAV)is the causative agent of mostly mild to moderate seasonal respiratory infections and several pandemic outbreaks,the most recent of which was reported in 2009.Previous IAV pandemics were associated with an enormous death toll;for example,the 1918 H1N1 pandemic affected hundreds of millions of people globally and resulted in~50 million deaths.1 Microbiologic analyses of patient samples revealed a strong incidence of bacterial pathogens in fatal complications of viral infection.2 To date,many pieces of epidemiologic and experimental evidence reveal pronounced susceptibility to detrimental bacterial superinfection in IAVinfected individuals.

关键词： immunity respiratory hundreds

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