Evidence map›Paper›PMID 20844578›Full record

ArticlePLoS pathogens2010

The microbiota mediates pathogen clearance from the gut lumen after non-typhoidal Salmonella diarrhea.

Kathrin Endt, Bärbel Stecher, Samuel Chaffron, Emma Slack, Nicolas Tchitchek, Arndt Benecke, Laurye Van Maele, Jean-Claude Sirard, Andreas J Mueller, Mathias Heikenwalder and 4 more

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 184 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
184citing papers in PubMed, 1 pooled it
9.5field-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

184 citing papers in PubMed, 1 synthesis or guideline pooled it, 338 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Review
  6. Review
  7. Review
  8. Review
  9. Infection strategies ofGut microbes reports · 2026
    Review
  10. Article
  11. The intestinal environment potentiates bacteriophage adaptation in response to phenotypic resistance inProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  12. Risk factors associated with long-term shedding infections of non-typhoidal Salmonella in humans.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2025
    Article
  13. Article
  14. Cecal Metabolome Profiles of Turkey Poults in Response toAnimals : an open access journal from MDPI · 2025
    Article
  15. Article
  16. Article
  17. Review
  18. A taste of one's own medicine:Frontiers in immunology · 2025
    Article
  19. Review
  20. Article

124 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

14 authors at 9 institutions in 4 countries.

Kathrin EndtInstitute of Microbiology, ETH Zürich, Zürich, Switzerland.
Bärbel Stecher
Samuel Chaffron
Emma Slack
Nicolas Tchitchek
Arndt Benecke
Laurye Van Maele
Jean-Claude Sirard
Andreas J Mueller
Mathias Heikenwalder
Andrew J Macpherson
Richard Strugnell
Christian von Mering
Wolf-Dietrich Hardt
ETH Zurich · CHUniversity Hospital of Bern · CHUniversity of Zurich · CHCentre National de la Recherche Scientifique · FRInserm · FRInstitut des Hautes Études Scientifiques · FRInstitut National de Recherche en Santé Publique · MLUniversity Hospital of Zurich · CHUniversity of Melbourne · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many enteropathogenic bacteria target the mammalian gut. The mechanisms protecting the host from infection are poorly understood. We have studied the protective functions of secretory antibodies (sIgA) and the microbiota, using a mouse model for S. typhimurium diarrhea. This pathogen is a common cause of diarrhea in humans world-wide. S. typhimurium (S. tm(att), sseD) causes a self-limiting gut infection in streptomycin-treated mice. After 40 days, all animals had overcome the disease, developed a sIgA response, and most had cleared the pathogen from the gut lumen. sIgA limited pathogen access to the mucosal surface and protected from gut inflammation in challenge infections. This protection was O-antigen specific, as demonstrated with pathogens lacking the S. typhimurium O-antigen (wbaP, S. enteritidis) and sIgA-deficient mice (TCRβ(-/-)δ(-/-), J(H) (-/-), IgA(-/-), pIgR(-/-)). Surprisingly, sIgA-deficiency did not affect the kinetics of pathogen clearance from the gut lumen. Instead, this was mediated by the microbiota. This was confirmed using 'L-mice' which harbor a low complexity gut flora, lack colonization resistance and develop a normal sIgA response, but fail to clear S. tm(att) from the gut lumen. In these mice, pathogen clearance was achieved by transferring a normal complex microbiota. Thus, besides colonization resistance ( = pathogen blockage by an intact microbiota), the microbiota mediates a second, novel protective function, i.e. pathogen clearance. Here, the normal microbiota re-grows from a state of depletion and disturbed composition and gradually clears even very high pathogen loads from the gut lumen, a site inaccessible to most "classical" immune effector mechanisms. In conclusion, sIgA and microbiota serve complementary protective functions. The microbiota confers colonization resistance and mediates pathogen clearance in primary infections, while sIgA protects from disease if the host re-encounters the same pathogen. This has implications for curing S. typhimurium diarrhea and for preventing transmission.

Indexed as

AnimalsBiomarkersBlotting, WesternDiarrheaFemaleFlow CytometryFluorescent Antibody TechniqueGene Expression ProfilingGenes, T-Cell Receptor betaHumansImmunoenzyme TechniquesImmunoglobulin A, SecretoryIntestinal MucosaMaleMetagenomeMiceBiomarkersImmunoglobulin A, SecretoryO antigen, PseudomonasO AntigensStreptomycin

Identifiers

PMID20844578
PMCPMC2936549
OpenAlexW2087109157

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.