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Human anti-N1 monoclonal antibodies elicited by pandemic H1N1 virus infection broadly inhibit HxN1 viruses in vitro and in vivo

Journal Article · · Immunity
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  1. Univ. of Bergen (Norway); Haukeland University Hospital, Bergen (Norway)
  2. Icahn School of Medicine at Mount Sinai, New York, NY (United States)
  3. The Scripps Research Inst., La Jolla, CA (United States)
  4. Washington Univ., St. Louis, MO (United States). School of Medicine
  5. Instituto Nacional de Enfermedades Respiratorias (Mexico)
  6. Instituto Nacional de Enfermedades Respiratorias (Mexico); TecSalud (Mexico). School of Medicine and Health Sciences
+ Show Author Affiliations
Neuraminidase (NA) is one of the two influenza virus surface glycoproteins, and antibodies that target it are an independent correlate of protection. However, our current understanding of NA antigenicity is incomplete. Here, in this work, we describe human monoclonal antibodies (mAbs) from a patient with a pandemic H1N1 virus infection in 2009. Two mAbs exhibited broad reactivity and inhibited NA enzyme activity of seasonal H1N1 viruses circulating before and after 2009, as well as viruses with avian or swine N1s. The mAbs provided robust protection from lethal challenge with human H1N1 and avian H5N1 viruses in mice, and both target an epitope on the lateral face of NA. In summary, we identified two broadly protective NA antibodies that share a novel epitope, inhibited NA activity, and provide protection against virus challenge in mice. Our work reaffirms that NA should be included as a target in future broadly protective or universal influenza virus vaccines.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
2423459
Journal Information:
Immunity, Journal Name: Immunity Journal Issue: 8 Vol. 56; ISSN 1074-7613
Publisher:
Cell PressCopyright Statement
Country of Publication:
United States
Language:
English

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60 APPLIED LIFE SCIENCES
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