Evidence map›Paper›PMID 30310093›Full record

ArticleScientific reports2018

Antibiotic export by efflux pumps affects growth of neighboring bacteria.

Xi Wen, Ariel M Langevin, Mary J Dunlop

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. 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
0.6field-weighted citation impact, top 43% 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, 29 citations in OpenAlex.

  1. Article
  2. Spatial population dynamics of bacterial colonies with social antibiotic resistance.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  3. Article
  4. Antibiotic resistance in bacterial communities.Current opinion in microbiology · 2023
    Review
  5. Efflux, Signaling and Warfare in a Polymicrobial World.Antibiotics (Basel, Switzerland) · 2023
    Review
  6. Review
  7. Article
  8. Review
  9. Review
  10. Review
  11. Multidrug Resistance Pumps as a Keystone of Bacterial Resistance.Moscow University biological sciences bulletin · 2022
    Article
  12. Article
  13. Article
  14. Article
  15. Microscopic Approach to Intrinsic Antibiotic Resistance.The journal of physical chemistry. B · 2021
    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 1 institution in 1 country.

Xi WenBiomedical Engineering Department, Boston University, Boston, MA, 02215, USA.
Ariel M LangevinBiomedical Engineering Department, Boston University, Boston, MA, 02215, USA.
Mary J DunlopBiomedical Engineering Department, Boston University, Boston, MA, 02215, USA. mjdunlop@bu.edu.ORCID http://orcid.org/0000-0002-9261-8216
Boston University · US

Funding

Feedback and Noise in a Multiple Antibiotic Resistance CircuitR01AI102922 · NIAID · UNIVERSITY OF VERMONT & ST AGRIC COLLEGE · PI Mary J. Dunlop · 2014 to 2026
$4.7M
National Science Foundation (NSF) 1347635NIAID NIH HHS R01 AI102922U.S. Department of Health & Human Services | National Institutes of Health (NIH) R01AI102922
6 · The paper itself

Abstract

Cell-cell interactions play an important role in bacterial antibiotic resistance. Here, we asked whether neighbor proximity is sufficient to generate single-cell variation in antibiotic resistance due to local differences in antibiotic concentrations. To test this, we focused on multidrug efflux pumps because recent studies have revealed that expression of pumps is heterogeneous across populations. Efflux pumps can export antibiotics, leading to elevated resistance relative to cells with low or no pump expression. In this study, we co-cultured cells with and without AcrAB-TolC pump expression and used single-cell time-lapse microscopy to quantify growth rate as a function of a cell's neighbors. In inhibitory concentrations of chloramphenicol, we found that cells lacking functional efflux pumps (ΔacrB) grow more slowly when they are surrounded by cells with AcrAB-TolC pumps than when surrounded by ΔacrB cells. To help explain our experimental results, we developed an agent-based mathematical model, which demonstrates the impact of neighbors based on efflux efficiency. Our findings hold true for co-cultures of Escherichia coli with and without pump expression and also in co-cultures of E. coli and Salmonella typhumirium. These results show how drug export and local microenvironments play a key role in defining single-cell level antibiotic resistance.

Indexed as

AntibiosisAnti-Bacterial AgentsATP-Binding Cassette, Sub-Family C ProteinsBacterial Outer Membrane ProteinsChloramphenicolEscherichia coliEscherichia coli ProteinsMembrane Transport ProteinsModels, TheoreticalSalmonella typhimuriumAcrB protein, E coliAnti-Bacterial AgentsATP-Binding Cassette, Sub-Family C ProteinsBacterial Outer Membrane ProteinsChloramphenicolEscherichia coli ProteinsMembrane Transport ProteinstolC protein, E coli

Identifiers

PMID30310093
PMCPMC6181935
OpenAlexW2894617794

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.