Evidence map›Paper›PMID 33690640›Full record

ArticlePLoS biology2021

Bacterial defenses against a natural antibiotic promote collateral resilience to clinical antibiotics.

Lucas A Meirelles, Elena K Perry, Megan Bergkessel, Dianne K Newman

Open access · goldAbstract read
In one paragraph

Article in PLoS biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
6.8field-weighted citation impact, top 3% 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

41 citing papers in PubMed, 50 citations in OpenAlex.

  1. Review
  2. Article
  3. Pyocyanin produced byAntimicrobial agents and chemotherapy · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. mSystems · 2026
    Article
  8. Article
  9. Review
  10. Review
  11. Nitric oxide tunes secreted metabolite bioactivity.bioRxiv : the preprint server for biology · 2025
    Article
  12. Review
  13. Article
  14. Article
  15. Development ofMini reviews in medicinal chemistry · 2025
    Review
  16. Facing stress and inflammation: From the cell to the planet.World journal of experimental medicine · 2024
    Review
  17. Article
  18. Article
  19. Bioenergetic suppression by redox-active metabolites promotes antibiotic tolerance inProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  20. Pigments from pathogenic bacteria: a comprehensive update on recent advances.World journal of microbiology & biotechnology · 2024
    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

4 authors at 1 institution in 1 country.

Lucas A MeirellesDivision of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, United States of America.ORCID 0000-0003-3194-7136
Elena K PerryDivision of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, United States of America.ORCID 0000-0002-7151-1479
Megan BergkesselDivision of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, United States of America.ORCID 0000-0002-4530-1224
Dianne K NewmanDivision of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, United States of America.ORCID 0000-0003-1647-1918
California Institute of Technology · US

Funding

Biological mechanisms and consequences of efficient extracellular electron transfer in Pseudomonas aeruginosaR01AI127850 · NIAID · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI Dianne K Newman · 2017 to 2026
$5.6M
Testing the hypothesis that microbial energetic hijacking of the CF immune response selects for specific pathogens during lung function decline- Diversity SupplementR01HL152190 · NHLBI · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI NEWMAN, DIANNE K · 2020 to 2023
$2.0M
NHLBI NIH HHS R01 HL152190NIAID NIH HHS R01 AI127850
6 · The paper itself

Abstract

Bacterial opportunistic human pathogens frequently exhibit intrinsic antibiotic tolerance and resistance, resulting in infections that can be nearly impossible to eradicate. We asked whether this recalcitrance could be driven by these organisms' evolutionary history as environmental microbes that engage in chemical warfare. Using Pseudomonas aeruginosa as a model, we demonstrate that the self-produced antibiotic pyocyanin (PYO) activates defenses that confer collateral tolerance specifically to structurally similar synthetic clinical antibiotics. Non-PYO-producing opportunistic pathogens, such as members of the Burkholderia cepacia complex, likewise display elevated antibiotic tolerance when cocultured with PYO-producing strains. Furthermore, by widening the population bottleneck that occurs during antibiotic selection and promoting the establishment of a more diverse range of mutant lineages, PYO increases apparent rates of mutation to antibiotic resistance to a degree that can rival clinically relevant hypermutator strains. Together, these results reveal an overlooked mechanism by which opportunistic pathogens that produce natural toxins can dramatically modulate the efficacy of clinical antibiotics and the evolution of antibiotic resistance, both for themselves and other members of clinically relevant polymicrobial communities.

Indexed as

Anti-Bacterial AgentsBacteriaDrug Resistance, BacterialOpportunistic InfectionsBurkholderia cepaciaHumansMicrobial Sensitivity TestsPseudomonas aeruginosaPyocyanineAnti-Bacterial AgentsPyocyanine

Identifiers

PMID33690640
PMCPMC7946323
OpenAlexW3135410126

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.