Evidence map›Paper›PMID 31669761›Full record

ArticleEuropean journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences2020

Discovery of M2 channel blockers targeting the drug-resistant double mutants M2-S31N/L26I and M2-S31N/V27A from the influenza A viruses.

Rami Musharrafieh, Chunlong Ma, Jun Wang

Open access · greenAbstract read
In one paragraph

Article in European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

19 citing papers in PubMed, 33 citations in OpenAlex.

  1. Review
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  6. PA and PA-X: two key proteins from segment 3 of the influenza viruses.Frontiers in cellular and infection microbiology · 2025
    Review
  7. Review
  8. Antiviral Approaches against Influenza Virus.Clinical microbiology reviews · 2023
    Review
  9. Review
  10. MicroRNA-205-5p: A potential therapeutic target for influenza A.Journal of cellular and molecular medicine · 2022
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
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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

3 authors at 1 institution in 1 country.

Rami MusharrafiehDepartment of Pharmacology and Toxicology, College of Pharmacy, The University of Arizona, Tucson, AZ 85721 USA.
Chunlong MaDepartment of Pharmacology and Toxicology, College of Pharmacy, The University of Arizona, Tucson, AZ 85721 USA.
Jun WangDepartment of Pharmacology and Toxicology, College of Pharmacy, The University of Arizona, Tucson, AZ 85721 USA. Electronic address: junwang@pharmacy.arizona.edu.
University of Arizona · US

Funding

Drug Discovery Targeting the Influenza A Virus M2-S31N Proton ChannelR33AI119187 · NIAID · UNIVERSITY OF ARIZONA · PI PEREZ, DANIEL R, WANG, JUN · 2017 to 2019
$1.2M
Drug Discovery Targeting the Influenza A Virus M2-S31N Proton ChannelR21AI119187 · NIAID · UNIVERSITY OF ARIZONA · PI PEREZ, DANIEL R, WANG, JUN · 2015 to 2016
$419k
Discovery of broad-spectrum influenza antivirals with a high genetic barrier to drug resistance by targeting the viral polymeraseR21AI144887 · NIAID · UNIVERSITY OF ARIZONA · PI WANG, JUN · 2019 to 2020
$415k
NIAID NIH HHS R21 AI119187NIAID NIH HHS R21 AI144887NIAID NIH HHS R33 AI119187
6 · The paper itself

Abstract

Influenza virus infections are a persistent threat to human health due to seasonal outbreaks and sporadic pandemics. Amantadine and rimantadine are FDA-approved influenza antiviral drugs and work by inhibiting the viral M2 proton channel. However, the therapeutic potential for the antiviral amantadine/rimantadine was curtailed by the emergence of drug-resistant mutations in its target protein M2. In this study, we identified four amantadine-resistant M2 mutants among avian and human influenza A H5N1 strains circulating between 2002 and 2019: the single S31N and V27A mutants, and the S31N/L26I and S31N/V27A double mutants. Herein, utilizing two-electrode voltage clamp (TEVC) assays, we screened a panel of structurally diverse M2 inhibitors against these single and double mutant channels. Three compounds 6, 7, and 15 were found to significantly block all three M2 mutants: M2-S31N, M2-S31N/L26I, and M2-S31N/V27A. Using recombinant viruses generated from reverse genetics, we further showed that these compounds also inhibited the replication of recombinant viruses harboring either the single S31N or double S31N/L26I and S31N/V27A mutants. This work represents the first example in developing antivirals by targeting the drug-resistant double mutants of M2 proton channels.

Indexed as

AnimalsAntiviral AgentsDogsDrug Resistance, ViralHEK293 CellsHumansInfluenza A Virus, H3N2 SubtypeInfluenza A Virus, H5N1 SubtypeMadin Darby Canine Kidney CellsMutationViral Matrix ProteinsViroporin ProteinsAntiviral AgentsM2 protein, Influenza A virusViral Matrix ProteinsViroporin ProteinsAmantadineAntiviralDrug resistanceInfluenza virusM2Proton channel

Identifiers

PMID31669761
PMCPMC6951800
OpenAlexW2985021031

What OpenQuestion holds

Textmetadata
LicenceTDM
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.