Evidence map›Paper›PMID 20823220›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2010

Rigid amphipathic fusion inhibitors, small molecule antiviral compounds against enveloped viruses.

Mireille R St Vincent, Che C Colpitts, Alexey V Ustinov, Muhammad Muqadas, Michael A Joyce, Nicola L Barsby, Raquel F Epand, Richard M Epand, Stanislav A Khramyshev, Olga A Valueva and 3 more

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed
4.1field-weighted citation impact, top 5% 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

80 citing papers in PubMed, 154 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Lipid and Lipidation in Membrane Fusion.The Journal of membrane biology · 2022
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Broad-spectrum Respiratory Virus Entry Inhibitors.Advances in experimental medicine and biology · 2022
    Article
  18. Entry Inhibitors of Hepatitis C Virus.Advances in experimental medicine and biology · 2022
    Article
  19. Photosensitizing Antivirals.Molecules (Basel, Switzerland) · 2021
    Review
  20. Active Components fromInternational journal of molecular sciences · 2021
    Article

20 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 3 institutions in 2 countries.

Mireille R St VincentDepartment of Biochemistry, Li Ka Shing Institute of Virology, University of Alberta, Edomonton, AB, Canada.
Che C Colpitts
Alexey V Ustinov
Muhammad Muqadas
Michael A Joyce
Nicola L Barsby
Raquel F Epand
Richard M Epand
Stanislav A Khramyshev
Olga A Valueva
Vladimir A Korshun
D Lorne J Tyrrell
Luis M Schang
University of Alberta · CAInstitute of Bioorganic Chemistry · RUMcMaster University Medical Centre · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

Antiviral drugs targeting viral proteins often result in prompt selection for resistance. Moreover, the number of viral targets is limited. Novel antiviral targets are therefore needed. The unique characteristics of fusion between virion envelopes and cell membranes may provide such targets. Like all fusing bilayers, viral envelopes locally adopt hourglass-shaped stalks during the initial stages of fusion, a process that requires local negative membrane curvature. Unlike cellular vesicles, however, viral envelopes do not redistribute lipids between leaflets, can only use the energy released by virion proteins, and fuse to the extracellular leaflets of cell membranes. Enrichment in phospholipids with hydrophilic heads larger than their hydrophobic tails in the convex outer leaflet of vesicles favors positive curvature, therefore increasing the activation energy barrier for fusion. Such phospholipids can increase the activation barrier beyond the energy provided by virion proteins, thereby inhibiting viral fusion. However, phospholipids are not pharmacologically useful. We show here that a family of synthetic rigid amphiphiles of shape similar to such phospholipids, RAFIs (rigid amphipathic fusion inhibitors), inhibit the infectivity of several otherwise unrelated enveloped viruses, including hepatitis C and HSV-1 and -2 (lowest apparent IC(50) 48 nM), with no cytotoxic or cytostatic effects (selectivity index > 3,000) by inhibiting the increased negative curvature required for the initial stages of fusion.

Indexed as

Antiviral AgentsAnimalsCell LineCell MembraneHerpesvirus 1, HumanHumansLipid BilayersMembrane LipidsMolecular StructureViral ProteinsVirionVirusesVirus InternalizationAntiviral AgentsLipid BilayersMembrane Lipidsviral envelope lipidsViral Proteins

Identifiers

PMID20823220
PMCPMC2951442
OpenAlexW2165481944

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.