Evidence map›Paper›PMID 40471690›Full record

ArticleJCI insight2025

Pan-H7 influenza human antibody virus neutralization depends on avidity and steric hindrance.

Iuliia M Gilchuk, Jinhui Dong, Ryan P Irving, Cameron D Buchman, Erica Armstrong, Hannah L Turner, Sheng Li, Andrew B Ward, Robert H Carnahan, James E Crowe

Abstract read
In one paragraph

Article in JCI insight, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Structural basis for a potent human neutralizing antibody targeting a conserved epitope on the H7 hemagglutinin head.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Iuliia M GilchukThe Vanderbilt Center for Antibody Therapeutics, Vanderbilt Medical Center, Nashville, Tennessee, USA.
Jinhui DongThe Vanderbilt Center for Antibody Therapeutics, Vanderbilt Medical Center, Nashville, Tennessee, USA.
Ryan P IrvingThe Vanderbilt Center for Antibody Therapeutics, Vanderbilt Medical Center, Nashville, Tennessee, USA.
Cameron D BuchmanThe Vanderbilt Center for Antibody Therapeutics, Vanderbilt Medical Center, Nashville, Tennessee, USA.
Erica ArmstrongThe Vanderbilt Center for Antibody Therapeutics, Vanderbilt Medical Center, Nashville, Tennessee, USA.
Hannah L TurnerDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, California, USA.
Sheng LiDepartment of Medicine and Biochemical Sciences, School of Medicine, University of California, San Diego, California, USA.
Andrew B WardDepartment of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, California, USA.
Robert H CarnahanThe Vanderbilt Center for Antibody Therapeutics, Vanderbilt Medical Center, Nashville, Tennessee, USA.
James E CroweThe Vanderbilt Center for Antibody Therapeutics, Vanderbilt Medical Center, Nashville, Tennessee, USA.

Funding

Vanderbilt Institute for Clinical and Translational Research (VICTR) -Identifying correlates of functional immunity in SARS-CoV-2 convalescent plasmaUL1TR002243 · NCATS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI Paul A. Harris, Wesley H Self · 2017 to 2026
$130.7M
Structure based design of antibodies and vaccinesU19AI117905 · NIAID · VANDERBILT UNIVERSITY MEDICAL CENTER · PI SCHIEF, WILLIAM R. · 2015 to 2019
$12.0M
NCATS NIH HHS UL1 TR002243NIAID NIH HHS U19 AI117905
6 · The paper itself

Abstract

H7N9 avian influenza virus is a zoonotic influenza virus of public health concern, with a 39% mortality rate in humans. H7N9-specific prevention or treatments for humans have not been approved. We previously isolated a human monoclonal antibody (mAb) designated H7-235 that broadly reacts to diverse H7 viruses and neutralizes H7N9 viruses in vitro. Here, we report the crystal structure of H7 HA1 bound to the fragment antigen-binding region (Fab) of recombinant H7-235 (rH7-235). The crystal structure revealed that rH7-235 recognizes residues near but outside of the receptor binding site (RBS). Nevertheless, the rH7-235 IgG potently inhibits hemagglutination mediated by H7N9 viruses due to avidity effect and Fc steric hindrance. This mAb prophylactically protects mice against weight loss and death caused by challenge with lethal H7N9 viruses in vivo. rH7-235 mAb neutralizing activity alone is sufficient for protection when used at a high dose in a prophylactic setting. This study provides insights into mechanisms of viral neutralization by protective, broadly reactive anti-H7 antibodies, informing the rational design of therapeutics and vaccines against H7N9 influenza virus.

Indexed as

Antibodies, MonoclonalAntibodies, NeutralizingAntibodies, ViralHemagglutinin Glycoproteins, Influenza VirusInfluenza A Virus, H7N9 SubtypeInfluenza, HumanOrthomyxoviridae InfectionsAnimalsAntibody AffinityCrystallography, X-RayFemaleHumansMiceMice, Inbred BALB CAntibodies, MonoclonalAntibodies, NeutralizingAntibodies, ViralHemagglutinin Glycoproteins, Influenza VirusAdaptive immunityImmunologyInfectious diseaseInfluenzaVirology

Identifiers

PMID40471690
PMCPMC12288907

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.