Evidence map›Paper›PMID 39261449›Full record

ArticleNature communications2024

The evolution of heteroresistance via small colony variants in Escherichia coli following long term exposure to bacteriostatic antibiotics.

Teresa Gil-Gil, Brandon A Berryhill, Joshua A Manuel, Andrew P Smith, Ingrid C McCall, Fernando Baquero, Bruce R Levin

Abstract read
In one paragraph

Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

  1. Review
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  14. Antibiotic killing of drug-induced bacteriostatic cells.Antimicrobial agents and chemotherapy · 2025
    Article
  15. Article
  16. Antibiotic killing of drug-induced bacteriostatic cells.bioRxiv : the preprint server for biology · 2024
    Article
  17. Bacterial persisters: molecular mechanisms and therapeutic development.Signal transduction and targeted therapy · 2024
    Review
  18. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Teresa Gil-Gil *Department of Biology, Emory University, Atlanta, GA, 30322, USA.
Brandon A Berryhill *Department of Biology, Emory University, Atlanta, GA, 30322, USA.ORCID 0000-0003-3430-0901
Joshua A ManuelDepartment of Biology, Emory University, Atlanta, GA, 30322, USA.
Andrew P SmithDepartment of Biology, Emory University, Atlanta, GA, 30322, USA.
Ingrid C McCallDepartment of Biology, Emory University, Atlanta, GA, 30322, USA.
Fernando BaqueroHospital Universitario Ramón y Cajal, Instituto Ramón y Cajal de Investigación Sanitaria, and Centro de Investigación Médica en Red, Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.
Bruce R LevinDepartment of Biology, Emory University, Atlanta, GA, 30322, USA. blevin@emory.edu.ORCID 0000-0003-3600-2780

Funding

Single Cell Analysis Core (Core C)U19AI158080 · NIAID · EMORY UNIVERSITY · PI LEVIN, BRUCE RICHARD, WEISS, DAVID S · 2021 to 2025
$10.9M
Theoretical and Experimental Studies of the Population and Evolutionary Dynamics of Bacteria and Bacteriophage.R35GM136407 · NIGMS · EMORY UNIVERSITY · PI LEVIN, BRUCE RICHARD · 2020 to 2024
$2.0M
NIAID NIH HHS U19 AI158080NIGMS NIH HHS R35 GM136407U.S. Department of Health & Human Services | NIH | National Institute of Allergy and Infectious Diseases (NIAID) U19AI158080U.S. Department of Health & Human Services | NIH | National Institute of General Medical Sciences (NIGMS) R35GM136407
6 · The paper itself

Abstract

Traditionally, bacteriostatic antibiotics are agents able to arrest bacterial growth. Despite being traditionally viewed as unable to kill bacterial cells, when they are used clinically the outcome of these drugs is frequently as effective as when a bactericidal drug is used. We explore the dynamics of Escherichia coli after exposure to two ribosome-targeting bacteriostatic antibiotics, chloramphenicol and azithromycin, for thirty days. The results of our experiments provide evidence that bacteria exposed to these drugs replicate, evolve, and generate a sub-population of small colony variants (SCVs) which are resistant to multiple drugs. These SCVs contribute to the evolution of heteroresistance and rapidly revert to a susceptible state once the antibiotic is removed. Stated another way, exposure to bacteriostatic drugs selects for the evolution of heteroresistance in populations previously lacking this trait. More generally, our results question the definition of bacteriostasis as populations exposed to bacteriostatic drugs are replicating despite the lack of net growth.

Indexed as

Anti-Bacterial AgentsChloramphenicolEscherichia coliAzithromycinDrug Resistance, BacterialDrug Resistance, Multiple, BacterialMicrobial Sensitivity TestsAnti-Bacterial AgentsAzithromycinChloramphenicol

Identifiers

PMID39261449
PMCPMC11391013

What OpenQuestion holds

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LicenceCC BY-NC-ND
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.