Evidence map›Paper›PMID 31484758›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2019

Differential requirements for FcγR engagement by protective antibodies against Ebola virus.

Stylianos Bournazos, David J DiLillo, Arthur J Goff, Pamela J Glass, Jeffrey V Ravetch

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
5.8field-weighted citation impact, top 3% of its field
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

36 citing papers in PubMed, 52 citations in OpenAlex.

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  8. Complement contributes to antibody-mediated protection against repeated SHIV challenge.Proceedings of the National Academy of Sciences of the United States of America · 2023
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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

5 authors at 2 institutions in 1 country.

Stylianos BournazosLaboratory of Molecular Genetics and Immunology, The Rockefeller University, New York, NY 10065.
David J DiLilloLaboratory of Molecular Genetics and Immunology, The Rockefeller University, New York, NY 10065.
Arthur J GoffVirology Division, US Army Medical Research Institute for Infectious Diseases, Fort Detrick, MD 21702.
Pamela J GlassVirology Division, US Army Medical Research Institute for Infectious Diseases, Fort Detrick, MD 21702.
Jeffrey V RavetchLaboratory of Molecular Genetics and Immunology, The Rockefeller University, New York, NY 10065; ravetch@rockefeller.edu.ORCID 0000-0003-2024-9041
Rockefeller University · USUnited States Army Medical Research Institute of Infectious Diseases · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ebola virus (EBOV) continues to pose significant threats to global public health, requiring ongoing development of multiple strategies for disease control. To date, numerous monoclonal antibodies (mAbs) that target the EBOV glycoprotein (GP) have demonstrated potent protective activity in animal disease models and are thus promising candidates for the control of EBOV. However, recent work in a variety of virus diseases has highlighted the importance of coupling Fab neutralization with Fc effector activity for effective antibody-mediated protection. To determine the contribution of Fc effector activity to the protective function of mAbs to EBOV GP, we selected anti-GP mAbs targeting representative, protective epitopes and characterized their Fc receptor (FcγR) dependence in vivo in FcγR humanized mouse challenge models of EBOV disease. In contrast to previous studies, we find that anti-GP mAbs exhibited differential requirements for FcγR engagement in mediating their protective activity independent of their distance from the viral membrane. Anti-GP mAbs targeting membrane proximal epitopes or the GP mucin domain do not rely on Fc-FcγR interactions to confer activity, whereas antibodies against the GP chalice bowl and the fusion loop require FcγR engagement for optimal in vivo antiviral activity. This complexity of antibody-mediated protection from EBOV disease highlights the structural constraints of FcγR binding for specific viral epitopes and has important implications for the development of mAb-based immunotherapeutics with optimal potency and efficacy.

Indexed as

AnimalsAntibodies, NeutralizingAntibodies, ViralAntibody AffinityEbolavirusEnzyme-Linked Immunosorbent AssayEpitopesHemorrhagic Fever, EbolaHost-Pathogen InteractionsHumansImmunoglobulin GMiceMucinsProtein BindingProtein Interaction Domains and MotifsReceptors, IgGAntibodies, NeutralizingAntibodies, ViralEpitopesImmunoglobulin GMucinsReceptors, IgGantibodieseffector functionFc receptorsimmunoglobulinimmunotherapy

Identifiers

PMID31484758
PMCPMC6778250
OpenAlexW2971591554

What OpenQuestion holds

Textmetadata
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.