A Site of Vulnerability on the Influenza Virus Hemagglutinin Head Domain Trimer Interface.
Animals
Antibodies, Monoclonal, Murine-Derived
/ immunology
Antibodies, Viral
/ immunology
Dogs
Epitopes
/ immunology
Hemagglutinin Glycoproteins, Influenza Virus
/ immunology
Influenza A virus
/ immunology
Influenza Vaccines
/ immunology
Madin Darby Canine Kidney Cells
Mice
Orthomyxoviridae Infections
/ immunology
B-lymphocytes
antibodies
antibody-dependent cell cytotoxicity
antigen-antibody reactions
hemagglutinin glycoproteins
influenza A virus
influenza virus
monoclonal
viral
Journal
Cell
ISSN: 1097-4172
Titre abrégé: Cell
Pays: United States
ID NLM: 0413066
Informations de publication
Date de publication:
16 05 2019
16 05 2019
Historique:
received:
23
07
2018
revised:
25
02
2019
accepted:
04
04
2019
entrez:
18
5
2019
pubmed:
18
5
2019
medline:
12
2
2020
Statut:
ppublish
Résumé
Here, we describe the discovery of a naturally occurring human antibody (Ab), FluA-20, that recognizes a new site of vulnerability on the hemagglutinin (HA) head domain and reacts with most influenza A viruses. Structural characterization of FluA-20 with H1 and H3 head domains revealed a novel epitope in the HA trimer interface, suggesting previously unrecognized dynamic features of the trimeric HA protein. The critical HA residues recognized by FluA-20 remain conserved across most subtypes of influenza A viruses, which explains the Ab's extraordinary breadth. The Ab rapidly disrupted the integrity of HA protein trimers, inhibited cell-to-cell spread of virus in culture, and protected mice against challenge with viruses of H1N1, H3N2, H5N1, or H7N9 subtypes when used as prophylaxis or therapy. The FluA-20 Ab has uncovered an exceedingly conserved protective determinant in the influenza HA head domain trimer interface that is an unexpected new target for anti-influenza therapeutics and vaccines.
Identifiants
pubmed: 31100268
pii: S0092-8674(19)30397-6
doi: 10.1016/j.cell.2019.04.011
pmc: PMC6629437
mid: NIHMS1528122
pii:
doi:
Substances chimiques
Antibodies, Monoclonal, Murine-Derived
0
Antibodies, Viral
0
Epitopes
0
Hemagglutinin Glycoproteins, Influenza Virus
0
Influenza Vaccines
0
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
1136-1152.e18Subventions
Organisme : NIAID NIH HHS
ID : HHSN272201400024C
Pays : United States
Organisme : NIAID NIH HHS
ID : HHSN272201400008C
Pays : United States
Organisme : NIGMS NIH HHS
ID : U54 GM094586
Pays : United States
Organisme : NIAID NIH HHS
ID : R56 AI127371
Pays : United States
Organisme : NIAID NIH HHS
ID : U19 AI117905
Pays : United States
Organisme : NIAID NIH HHS
ID : P01 AI097092
Pays : United States
Organisme : NCATS NIH HHS
ID : UL1 TR002243
Pays : United States
Organisme : NIGMS NIH HHS
ID : P41 GM103393
Pays : United States
Commentaires et corrections
Type : CommentIn
Informations de copyright
Copyright © 2019 Elsevier Inc. All rights reserved.
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