Evidence map›Paper›PMID 20600031›Full record

ArticleGastroenterology2011

Tolerance rather than immunity protects from Helicobacter pylori-induced gastric preneoplasia.

Isabelle C Arnold, Josephine Y Lee, Manuel R Amieva, Axel Roers, Richard A Flavell, Tim Sparwasser, Anne Müller

Open access · greenAbstract read
In one paragraph

Article in Gastroenterology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 181 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
181citing papers in PubMed, 2 pooled it
20.2field-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

181 citing papers in PubMed, 2 syntheses or guidelines pooled it, 291 citations in OpenAlex.

  1. Is Helicobacter pylori Infection Associated with Celiac Disease? A Meta-analysis.The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology · 2022
    Pooled it
  2. Association Between Helicobacter pylori Exposure and Decreased Odds of Eosinophilic Esophagitis-A Systematic Review and Meta-analysis.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2019
    Pooled it
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  11. Metaplasia Enables Stomach Colonization bybioRxiv : the preprint server for biology · 2025
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  14. Neonatal infection withInfection and immunity · 2025
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  19. A critical review onFrontiers in cellular and infection microbiology · 2025
    Review
  20. Gut microbiota and healthy longevity.Science China. Life sciences · 2024
    Review

121 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

7 authors at 5 institutions in 3 countries.

Isabelle C ArnoldInstitute of Molecular Cancer Research, University of Zürich, Zürich, Switzerland.
Josephine Y Lee
Manuel R Amieva
Axel Roers
Richard A Flavell
Tim Sparwasser
Anne Müller
Stanford University · USUniversity of Zurich · CHCenter for Experimental and Clinical Infection Research · DETU Dresden · DEYale University · US

Funding

MOLECULAR BASIS OF HOST-PARASITE INTERACTIONT32AI007328 · NIAID · STANFORD UNIVERSITY · PI JUSTIN L SONNENBURG · 1987 to 2026
$11.9M
Helicobacter Host Interactions in Animal ModelsR01CA092229 · NCI · STANFORD UNIVERSITY · PI AMIEVA, MANUEL R · 2001 to 2009
$2.6M
NCI NIH HHS R01 CA092229NIAID NIH HHS T32 AI007328
6 · The paper itself

Abstract

BACKGROUND &

aimsChronic infection with the bacterial pathogen Helicobacter pylori causes gastric disorders, ranging from chronic gastritis to gastric adenocarcinoma. Only a subset of infected persons will develop overt disease; most remains asymptomatic despite lifelong colonization. This study aims to elucidate the differential susceptibility to H pylori that is found both across and within populations.

methodsWe have established a C57BL/6 mouse model of H pylori infection with a strain that is capable of delivering the virulence factor cytotoxin-associated gene A (CagA) into host cells through the activity of a Cag-pathogenicity island-encoded type IV secretion system.

resultsMice infected at 5-6 weeks of age with CagA(+)H pylori rapidly develop gastritis, gastric atrophy, epithelial hyperplasia, and metaplasia in a type IV secretion system-dependent manner. In contrast, mice infected during the neonatal period with the same strain are protected from preneoplastic lesions. Their protection results from the development of H pylori-specific peripheral immunologic tolerance, which requires transforming growth factor-β signaling and is mediated by long-lived, inducible regulatory T cells, and which controls the local CD4(+) T-cell responses that trigger premalignant transformation. Tolerance to H pylori develops in the neonatal period because of a biased ratio of T-regulatory to T-effector cells and is favored by prolonged low-dose exposure to antigen.

conclusionsUsing a novel CagA(+)H pylori infection model, we report here that the development of tolerance to H pylori protects from gastric cancer precursor lesions. The age at initial infection may thus account for the differential susceptibility of infected persons to H pylori-associated disease manifestations.

Indexed as

Immune ToleranceAnimalsBacterial Secretion SystemsFemaleGastric MucosaGastritis, AtrophicGenomic IslandsHelicobacter InfectionsHelicobacter pyloriHyperplasiaMaleMetaplasiaMiceMice, Inbred C57BLPrecancerous ConditionsStomach DiseasesBacterial Secretion Systems

Identifiers

PMID20600031
PMCPMC3380634
OpenAlexW2039155608

What OpenQuestion holds

Textmetadata
LicenceTDM
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.