• FluTrackers.com Inc. does not provide medical advice. Information on this web site is collected from various internet resources, and the FluTrackers board of directors makes no warranty to the safety, efficacy, correctness or completeness of the information posted on this site by any author or poster. The information collated here is for instructional and/or discussion purposes only and is NOT intended to diagnose or treat any disease, illness, or other medical condition. Every individual reader or poster should seek advice from their personal physician/healthcare practitioner before considering or using any interventions that are discussed on this website. By continuing to access this website you agree to consult your personal physican before using any interventions posted on this website, and you agree to hold harmless FluTrackers.com Inc., the board of directors, the members, and all authors and posters for any effects from use of any medication, supplement, vitamin or other substance, device, intervention, etc. mentioned in posts on this website, or other internet venues referenced in posts on this website.
  • We are not asking for any donations. Do not donate to any entity who says they are raising funds for us.

Nature . A pan-influenza antibody inhibiting neuraminidase via receptor mimicry

tetano

Editor, Senior Moderator
Nature


. 2023 May 31.
doi: 10.1038/s41586-023-06136-y. Online ahead of print. A pan-influenza antibody inhibiting neuraminidase via receptor mimicry

Corey Momont[SUP] #[/SUP][SUP] 1 [/SUP], Ha V Dang[SUP] #[/SUP][SUP] 1 [/SUP], Fabrizia Zatta[SUP] #[/SUP][SUP] 2 [/SUP], Kevin Hauser[SUP] #[/SUP][SUP] 1 [/SUP], Caihong Wang[SUP] 3 [/SUP], Julia di Iulio[SUP] 1 [/SUP], Andrea Minola[SUP] 2 [/SUP], Nadine Czudnochowski[SUP] 1 [/SUP], Anna De Marco[SUP] 2 [/SUP], Kaitlin Branch[SUP] 1 [/SUP], David Donermeyer[SUP] 3 [/SUP], Siddhant Vyas[SUP] 1 [/SUP], Alex Chen[SUP] 1 [/SUP], Elena Ferri[SUP] 1 [/SUP], Barbara Guarino[SUP] 2 [/SUP], Abigail E Powell[SUP] 1 [/SUP], Roberto Spreafico[SUP] 1 [/SUP], Samantha S Yim[SUP] 1 [/SUP], Dale R Balce[SUP] 1 [/SUP], Istvan Bartha[SUP] 1 [/SUP], Marcel Meury[SUP] 1 [/SUP], Tristan I Croll[SUP] 4 [/SUP], David M Belnap[SUP] 5 [/SUP], Michael A Schmid[SUP] 2 [/SUP], William Timothy Schaiff[SUP] 3 [/SUP], Jessica L Miller[SUP] 1 [/SUP], Elisabetta Cameroni[SUP] 2 [/SUP], Amalio Telenti[SUP] 1 [/SUP], Herbert W Virgin[SUP] 1 6 [/SUP], Laura E Rosen[SUP] 1 [/SUP], Lisa A Purcell[SUP] 1 [/SUP], Antonio Lanzavecchia[SUP] 2 [/SUP], Gyorgy Snell[SUP] 7 [/SUP], Davide Corti[SUP] 8 [/SUP], Matteo Samuele Pizzuto[SUP] 9 [/SUP]



Affiliations
Abstract

Rapidly evolving influenza A viruses (IAVs) and influenza B viruses (IBVs) are major causes of recurrent lower respiratory tract infections. Current influenza vaccines elicit antibodies predominantly to the highly variable head region of haemagglutinin and their effectiveness is limited by viral drift[SUP]1[/SUP] and suboptimal immune responses[SUP]2[/SUP]. Here we describe a neuraminidase-targeting monoclonal antibody, FNI9, that potently inhibits the enzymatic activity of all group 1 and group 2 IAVs, as well as Victoria/2/87-like, Yamagata/16/88-like and ancestral IBVs. FNI9 broadly neutralizes seasonal IAVs and IBVs, including the immune-evading H3N2 strains bearing an N-glycan at position 245, and shows synergistic activity when combined with anti-haemagglutinin stem-directed antibodies. Structural analysis reveals that D107 in the FNI9 heavy chain complementarity-determinant region 3 mimics the interaction of the sialic acid carboxyl group with the three highly conserved arginine residues (R118, R292 and R371) of the neuraminidase catalytic site. FNI9 demonstrates potent prophylactic activity against lethal IAV and IBV infections in mice. The unprecedented breadth and potency of the FNI9 monoclonal antibody supports its development for the prevention of influenza illness by seasonal and pandemic viruses.


 
Back
Top