Evidence map›Paper›PMID 23349773›Full record

ArticlePloS one2013

Nutritional basis for colonization resistance by human commensal Escherichia coli strains HS and Nissle 1917 against E. coli O157:H7 in the mouse intestine.

Rosalie Maltby, Mary P Leatham-Jensen, Terri Gibson, Paul S Cohen, Tyrrell Conway

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 170 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
170citing papers in PubMed, 1 pooled it
12.9field-weighted citation impact, top 1% 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

170 citing papers in PubMed, 1 synthesis or guideline pooled it, 278 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. Review
  10. Review
  11. Article
  12. Interspecies interaction controlsProceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  13. Review
  14. Hypersensitivity of chitin degradation to initial species densities due to monomer diffusion.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  15. Article
  16. Infection strategies ofGut microbes reports · 2026
    Review
  17. Review
  18. Inhibition ofMicroorganisms · 2025
    Article
  19. Article
  20. Review

110 more citing papers are in PubMed but not listed here.

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 2 institutions in 1 country.

Rosalie MaltbyDepartment of Microbiology and Plant Biology, University of Oklahoma, Norman, Oklahoma, USA.
Mary P Leatham-Jensen
Terri Gibson
Paul S Cohen
Tyrrell Conway
University of Oklahoma · USUniversity of Rhode Island · US

Funding

GROWTH AND COLONIZATION OF THE INTESTINE BY E COLIR01AI048945 · NIAID · UNIVERSITY OF OKLAHOMA NORMAN · PI CONWAY, TYRRELL · 2000 to 2008
$3.4M
Symbiosis of E. coli and the Intestinal Microbiota in a Mouse ModelR01GM095370 · NIGMS · UNIVERSITY OF OKLAHOMA · PI CONWAY, TYRRELL · 2011 to 2014
$1.6M
Growth and Colonization of the Intestine by E. coliR56AI048945 · NIAID · UNIVERSITY OF OKLAHOMA · PI CONWAY, TYRRELL · 2009 to 2009
$462k
NIAID NIH HHS AI48945NIAID NIH HHS R01 AI048945NIAID NIH HHS R56 AI048945NIGMS NIH HHS GM095370NIGMS NIH HHS R01 GM095370
6 · The paper itself

Abstract

Escherichia coli is a single species consisting of many biotypes, some of which are commensal colonizers of mammals and others that cause disease. Humans are colonized on average with five commensal biotypes, and it is widely thought that the commensals serve as a barrier to infection by pathogens. Previous studies showed that a combination of three pre-colonized commensal E. coli strains prevents colonization of E. coli O157:H7 in a mouse model (Leatham, et al., 2010, Infect Immun 77: 2876-7886). The commensal biotypes included E. coli HS, which is known to successfully colonize humans at high doses with no adverse effects, and E. coli Nissle 1917, a human commensal strain that is used in Europe as a preventative of traveler's diarrhea. We hypothesized that commensal biotypes could exert colonization resistance by consuming nutrients needed by E. coli O157:H7 to colonize, thus preventing this first step in infection. Here we report that to colonize streptomycin-treated mice E. coli HS consumes six of the twelve sugars tested and E. coli Nissle 1917 uses a complementary yet divergent set of seven sugars to colonize, thus establishing a nutritional basis for the ability of E. coli HS and Nissle 1917 to occupy distinct niches in the mouse intestine. Together these two commensals use the five sugars previously determined to be most important for colonization of E. coli EDL933, an O157:H7 strain. As predicted, the two commensals prevented E. coli EDL933 colonization. The results support a model in which invading pathogenic E. coli must compete with the gut microbiota to obtain the nutrients needed to colonize and establish infection; accordingly, the outcome of the challenge is determined by the aggregate capacity of the native microbiota to consume the nutrients required by the pathogen.

Indexed as

AnimalsAnti-Bacterial AgentsBacterial LoadCarbohydrate MetabolismEcosystemEscherichia coliEscherichia coli InfectionsEscherichia coli O157FecesGenetic Complementation TestHost-Pathogen InteractionsHumansIntestinesMaleMiceMutationAnti-Bacterial AgentsStreptomycin

Identifiers

PMID23349773
PMCPMC3547972
OpenAlexW2032347305

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.