Evidence map›Paper›PMID 22442668›Full record

ArticlePloS one2012

Mutagenesis-mediated virus extinction: virus-dependent effect of viral load on sensitivity to lethal defection.

Héctor Moreno, Héctor Tejero, Juan Carlos de la Torre, Esteban Domingo, Verónica Martín

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

15 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. A Virus Is a Community: Diversity within Negative-Sense RNA Virus Populations.Microbiology and molecular biology reviews : MMBR · 2022
    Review
  5. Review
  6. Article
  7. Article
  8. Article
  9. Arenavirus Quasispecies and Their Biological Implications.Current topics in microbiology and immunology · 2016
    Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Viral quasispecies evolution.Microbiology and molecular biology reviews : MMBR · 2012
    Review
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 4 institutions in 2 countries.

Héctor MorenoCentro de Biología Molecular Severo Ochoa (CSIC-UAM), Cantoblanco, Madrid, Spain.
Héctor Tejero
Juan Carlos de la Torre
Esteban Domingo
Verónica Martín
Universidad Autónoma de Madrid · ESCentro de Biología Molecular Severo Ochoa · ESInstituto Nacional de Investigación y Tecnología Agraria y Alimentaria · ESScripps Research Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLethal mutagenesis is a transition towards virus extinction mediated by enhanced mutation rates during viral genome replication, and it is currently under investigation as a potential new antiviral strategy. Viral load and virus fitness are known to influence virus extinction. Here we examine the effect or the multiplicity of infection (MOI) on progeny production of several RNA viruses under enhanced mutagenesis.

resultsThe effect of the mutagenic base analogue 5-fluorouracil (FU) on the replication of the arenavirus lymphocytic choriomeningitis virus (LCMV) can result either in inhibition of progeny production and virus extinction in infections carried out at low multiplicity of infection (MOI), or in a moderate titer decrease without extinction at high MOI. The effect of the MOI is similar for LCMV and vesicular stomatitis virus (VSV), but minimal or absent for the picornaviruses foot-and-mouth disease virus (FMDV) and encephalomyocarditis virus (EMCV). The increase in mutation frequency and Shannon entropy (mutant spectrum complexity) as a result of virus passage in the presence of FU was more accentuated at low MOI for LCMV and VSV, and at high MOI for FMDV and EMCV. We present an extension of the lethal defection model that agrees with the experimental results.

conclusions(i) Low infecting load favoured the extinction of negative strand viruses, LCMV or VSV, with an increase of mutant spectrum complexity. (ii) This behaviour is not observed in RNA positive strand viruses, FMDV or EMCV. (iii) The accumulation of defector genomes may underlie the MOI-dependent behaviour. (iv) LCMV coinfections are allowed but superinfection is strongly restricted in BHK-21 cells. (v) The dissimilar effects of the MOI on the efficiency of mutagenic-based extinction of different RNA viruses can have implications for the design of antiviral protocols based on lethal mutagenesis, presently under development.

Indexed as

MutagenesisAnimalsChlorocebus aethiopsCricetinaeGenome, ViralMutationRNA VirusesRNA Virus InfectionsVero CellsViral Load

Identifiers

PMID22442668
PMCPMC3307711
OpenAlexW1983779252

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.