Evidence map›Paper›PMID 35675785›Full record

ArticleCell reports2022

Localized pmrB hypermutation drives the evolution of colistin heteroresistance.

Natalia Kapel, Julio Diaz Caballero, R Craig MacLean

Open access · goldAbstract read
In one paragraph

Article in Cell reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 17% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Colistin Resistance inAntibiotics (Basel, Switzerland) · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Heterogeneous subpopulations inFrontiers in cellular and infection microbiology · 2025
    Article
  10. Article
  11. Review
  12. ISmBio · 2024
    Article
  13. Mutation bias and adaptation in bacteria.Microbiology (Reading, England) · 2023
    Review
  14. Article
  15. Article
  16. Review
  17. 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

3 authors at 2 institutions in 1 country.

Natalia KapelUniversity of Oxford, Department of Zoology, 11a Mansfield Road, Oxford OX1 3SZ, UK.
Julio Diaz CaballeroUniversity of Oxford, Department of Zoology, 11a Mansfield Road, Oxford OX1 3SZ, UK.
R Craig MacLeanUniversity of Oxford, Department of Zoology, 11a Mansfield Road, Oxford OX1 3SZ, UK. Electronic address: craig.maclean@zoo.ox.ac.uk.
University of Oxford · GBOxford Research Group · GB

Funding

Wellcome Trust 106918/Z/15/ZWellcome Trust 203141/Z/16/Z
6 · The paper itself

Abstract

Colistin has emerged as an important last line of defense for the treatment of infections caused by antibiotic-resistant gram-negative pathogens, but colistin resistance remains poorly understood. Here, we investigate the responses of ≈1,000 populations of a multi-drug-resistant (MDR) strain of P. aeruginosa to a high dose of colistin. Colistin exposure causes rapid cell death, but some populations eventually recover due to the growth of sub-populations of heteroresistant cells. Heteroresistance is unstable, and resistance is rapidly lost under culture in colistin-free medium. The evolution of heteroresistance is primarily driven by selection for heteroresistance at two hotspot sites in the PmrAB regulatory system. Localized hypermutation of pmrB generates colistin resistance at 10

Indexed as

Bacterial ProteinsColistinAnti-Bacterial AgentsDrug Resistance, BacterialMicrobial Sensitivity TestsPseudomonas aeruginosaAnti-Bacterial AgentsBacterial ProteinsColistinAMRantibiotic resistancecolistinCP: Microbiologyevolutionary rescueexperimental evolutionheteroresistancehypermutabilitymutation ratePseudomonas aeruginosa

Identifiers

PMID35675785
PMCPMC9189680
OpenAlexW4281607039

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.