Evidence map›Paper›PMID 35391601›Full record

ArticleCellular and molecular life sciences : CMLS2022

Impairment of SARS-CoV-2 spike glycoprotein maturation and fusion activity by nitazoxanide: an effect independent of spike variants emergence.

Anna Riccio, Silvia Santopolo, Antonio Rossi, Sara Piacentini, Jean-Francois Rossignol, M Gabriella Santoro

Open access · hybridAbstract read
In one paragraph

Article in Cellular and molecular life sciences : CMLS, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.9field-weighted citation impact, top 7% 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

22 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Antiviral activity of nitazoxanide againstJournal of virus eradication · 2023
    Article
  10. Article
  11. Article
  12. Preparing for the next viral threat with broad-spectrum antivirals.The Journal of clinical investigation · 2023
    Review
  13. Spike mutation resilient scFv76 antibody counteracts SARS-CoV-2 lung damage upon aerosol delivery.Molecular therapy : the journal of the American Society of Gene Therapy · 2023
    Article
  14. Article
  15. Small molecules in the treatment of COVID-19.Signal transduction and targeted therapy · 2022
    Review
  16. Article
  17. Long Covid: where we stand and challenges ahead.Cell death and differentiation · 2022
    Review
  18. Article
  19. Review
  20. Human inhalable antibody fragments neutralizing SARS-CoV-2 variants for COVID-19 therapy.Molecular therapy : the journal of the American Society of Gene Therapy · 2022
    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

6 authors at 3 institutions in 2 countries.

Anna Riccio *Department of Biology, University of Rome Tor Vergata, Rome, Italy.
Silvia Santopolo *Department of Biology, University of Rome Tor Vergata, Rome, Italy.
Antonio RossiInstitute of Translational Pharmacology, CNR, Rome, Italy.
Sara PiacentiniDepartment of Biology, University of Rome Tor Vergata, Rome, Italy.
Jean-Francois RossignolRomark Institute of Medical Research, Tampa, FL, USA.
M Gabriella SantoroDepartment of Biology, University of Rome Tor Vergata, Rome, Italy. santoro@uniroma2.it.ORCID http://orcid.org/0000-0003-1432-4949
University of Rome Tor Vergata · ITIstituto di Farmacologia Traslazionale · ITRomark (United States) · US

Funding

Ministero dell'Istruzione, dell'Università e della Ricerca PRIN project N 2010PHT9NF-006
6 · The paper itself

Abstract

SARS-CoV-2, the causative agent of COVID-19, has caused an unprecedented global health crisis. The SARS-CoV-2 spike, a surface-anchored trimeric class-I fusion glycoprotein essential for viral entry, represents a key target for developing vaccines and therapeutics capable of blocking virus invasion. The emergence of SARS-CoV-2 spike variants that facilitate virus spread and may affect vaccine efficacy highlights the need to identify novel antiviral strategies for COVID-19 therapy. Here, we demonstrate that nitazoxanide, an antiprotozoal agent with recognized broad-spectrum antiviral activity, interferes with SARS-CoV-2 spike maturation, hampering its terminal glycosylation at an endoglycosidase H-sensitive stage. Engineering multiple SARS-CoV-2 variant-pseudoviruses and utilizing quantitative cell-cell fusion assays, we show that nitazoxanide-induced spike modifications hinder progeny virion infectivity as well as spike-driven pulmonary cell-cell fusion, a critical feature of COVID-19 pathology. Nitazoxanide, being equally effective against the ancestral SARS-CoV-2 Wuhan-spike and different emerging variants, including the Delta variant of concern, may represent a useful tool in the fight against COVID-19 infections.

Indexed as

Antiviral AgentsNitro CompoundsSARS-CoV-2Spike Glycoprotein, CoronavirusThiazolesCOVID-19 Drug TreatmentHumansAntiviral AgentsnitazoxanideNitro CompoundsSpike Glycoprotein, Coronavirusspike protein, SARS-CoV-2ThiazolesBroad-spectrum antiviralCOVID-19NitazoxanideSARS-CoV-2 spikeSARS-CoV-2 variantsSyncytia formation

Identifiers

PMID35391601
PMCPMC8989121
OpenAlexW4223506873

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.