Evidence map›Paper›PMID 34929007›Full record

ArticlePLoS pathogens2021

SARS-CoV-2 receptor binding domain fusion protein efficiently neutralizes virus infection.

Abigael Eva Chaouat, Hagit Achdout, Inbal Kol, Orit Berhani, Gil Roi, Einat B Vitner, Sharon Melamed, Boaz Politi, Eran Zahavy, Ilija Brizic and 6 more

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.2field-weighted citation impact, top 18% 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

16 citing papers in PubMed, 18 citations in OpenAlex.

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  11. Breastfeeding during the COVID-19 pandemic.Frontiers in pediatrics · 2023
    Review
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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

16 authors at 3 institutions in 2 countries.

Abigael Eva ChaouatThe Concern Foundation Laboratories at the Lautenberg Center for Immunology and Cancer Research, Institute for Medical Research Israel Canada (IMRIC), The Hebrew University Hadassah Medical School, Jerusalem, Israel.
Hagit AchdoutDepartment of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona, Israel.
Inbal KolThe Concern Foundation Laboratories at the Lautenberg Center for Immunology and Cancer Research, Institute for Medical Research Israel Canada (IMRIC), The Hebrew University Hadassah Medical School, Jerusalem, Israel.
Orit BerhaniThe Concern Foundation Laboratories at the Lautenberg Center for Immunology and Cancer Research, Institute for Medical Research Israel Canada (IMRIC), The Hebrew University Hadassah Medical School, Jerusalem, Israel.
Gil RoiThe Concern Foundation Laboratories at the Lautenberg Center for Immunology and Cancer Research, Institute for Medical Research Israel Canada (IMRIC), The Hebrew University Hadassah Medical School, Jerusalem, Israel.ORCID 0000-0002-9778-4993
Einat B VitnerDepartment of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona, Israel.
Sharon MelamedDepartment of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona, Israel.ORCID 0000-0001-9234-0501
Boaz PolitiDepartment of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona, Israel.
Eran ZahavyDepartment of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness Ziona, Israel.ORCID 0000-0002-5531-9786
Ilija BrizicCenter for Proteomics, Faculty of Medicine, University of Rijeka, Rijeka, Croatia.ORCID 0000-0001-8839-7839
Tihana Lenac RovisCenter for Proteomics, Faculty of Medicine, University of Rijeka, Rijeka, Croatia.ORCID 0000-0002-3299-1334
Or AlfiLautenberg Center for General and Tumor Immunology, The Hebrew University Faculty of Medicine, Jerusalem, Israel.
Dana WolfLautenberg Center for General and Tumor Immunology, The Hebrew University Faculty of Medicine, Jerusalem, Israel.ORCID 0000-0001-5507-4160
Stipan JonjicCenter for Proteomics, Faculty of Medicine, University of Rijeka, Rijeka, Croatia.
Tomer IsraelyDepartment of Infectious Diseases, Israel Institute for Biological Research, Ness Ziona, Israel.
Ofer MandelboimThe Concern Foundation Laboratories at the Lautenberg Center for Immunology and Cancer Research, Institute for Medical Research Israel Canada (IMRIC), The Hebrew University Hadassah Medical School, Jerusalem, Israel.ORCID 0000-0002-9354-1855
Israel Institute for Biological Research · ILUniversity of Rijeka · HRHebrew University of Jerusalem · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is responsible for the COVID-19 pandemic. Currently, as dangerous mutations emerge, there is an increased demand for specific treatments for SARS-CoV-2 infected patients. The spike glycoprotein on the virus envelope binds to the angiotensin converting enzyme 2 (ACE2) on host cells through its receptor binding domain (RBD) to mediate virus entry. Thus, blocking this interaction may inhibit viral entry and consequently stop infection. Here, we generated fusion proteins composed of the extracellular portions of ACE2 and RBD fused to the Fc portion of human IgG1 (ACE2-Ig and RBD-Ig, respectively). We demonstrate that ACE2-Ig is enzymatically active and that it can be recognized by the SARS-CoV-2 RBD, independently of its enzymatic activity. We further show that RBD-Ig efficiently inhibits in-vivo SARS-CoV-2 infection better than ACE2-Ig. Mechanistically, we show that anti-spike antibody generation, ACE2 enzymatic activity, and ACE2 surface expression were not affected by RBD-Ig. Finally, we show that RBD-Ig is more efficient than ACE2-Ig at neutralizing high virus titers. We thus propose that RBD-Ig physically blocks virus infection by binding to ACE2 and that RBD-Ig should be used for the treatment of SARS-CoV-2-infected patients.

Indexed as

Protein DomainsAngiotensin-Converting Enzyme 2AnimalsBinding SitesBinding Sites, AntibodyChlorocebus aethiopsCOVID-19FemaleHEK293 CellsHumansImmunoglobulin Fc FragmentsImmunoglobulin GMice, TransgenicNeutralization TestsProtein BindingRecombinant Fusion ProteinsAngiotensin-Converting Enzyme 2Immunoglobulin Fc FragmentsImmunoglobulin GRecombinant Fusion Proteins

Identifiers

PMID34929007
PMCPMC8722722
OpenAlexW4226166832

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.