Evidence map›Paper›PMID 24436142›Full record

ArticleGut2014

CCL20/CCR6-mediated migration of regulatory T cells to the Helicobacter pylori-infected human gastric mucosa.

Katherine W Cook, Darren P Letley, Richard J M Ingram, Emily Staples, Helle Skjoldmose, John C Atherton, Karen Robinson

Open access · hybridAbstract read
In one paragraph

Article in Gut, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
11.4field-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

72 citing papers in PubMed, 157 citations in OpenAlex.

  1. Trial
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  4. Low-Dose Intestinal Irradiation Enhances the Efficacy and Prognosis of PD-1 Blockade in Metastatic Non-Small Cell Lung Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Elevated CCL20 expression was associated with poor prognosis for breast cancer.Journal of the Chinese Medical Association : JCMA · 2025
    Article
  10. Plac1Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
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12 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 2 institutions in 1 country.

Katherine W CookNottingham Digestive Diseases Biomedical Research Unit, School of Medicine, The University of Nottingham, Nottingham, UK.
Darren P LetleyNottingham Digestive Diseases Biomedical Research Unit, School of Medicine, The University of Nottingham, Nottingham, UK.
Richard J M IngramNottingham Digestive Diseases Biomedical Research Unit, School of Medicine, The University of Nottingham, Nottingham, UK.
Emily StaplesNottingham Digestive Diseases Biomedical Research Unit, School of Medicine, The University of Nottingham, Nottingham, UK.
Helle SkjoldmoseNottingham Digestive Diseases Biomedical Research Unit, School of Medicine, The University of Nottingham, Nottingham, UK.
John C AthertonNottingham Digestive Diseases Biomedical Research Unit, School of Medicine, The University of Nottingham, Nottingham, UK.
Karen RobinsonNottingham Digestive Diseases Biomedical Research Unit, School of Medicine, The University of Nottingham, Nottingham, UK.
University of Nottingham · GBNIHR Nottingham Digestive Diseases Biomedical Research Unit · GB

Funding

Medical Research Council G0601170Medical Research Council G0701377Medical Research Council G1000311Medical Research Council G1000401
6 · The paper itself

Abstract

backgroundHelicobacter pylori-induced peptic ulceration is less likely to occur in patients with a strong gastric anti-inflammatory regulatory T cell (Treg) response. Migration of Tregs into the gastric mucosa is therefore important.

objectiveTo identify the homing receptors involved in directing Tregs to the gastric mucosa, and investigate how H pylori stimulates the relevant chemokine responses.

designGastric biopsy samples and peripheral blood were donated by 84 H pylori-infected and 46 uninfected patients. Luminex assays quantified gastric biopsy chemokine concentrations. Flow cytometry was used to characterise homing receptors on CD4(+)CD25(hi) Tregs. H pylori wild-type and isogenic mutants were used to investigate the signalling mechanisms behind CCL20 and IL-8 induction in gastric epithelial cell lines. Transwell assays were used to quantify Treg migration towards chemokines in vitro.

resultsCCL20, CXCL1-3 and IL-8 concentrations were significantly increased in gastric biopsy samples from H pylori-infected patients. CCR6 (CCL20 receptor), CXCR1 and CXCR2 (IL-8 and CXCL1-3 receptors) were expressed by a higher proportion of peripheral blood Tregs in infected patients. Most gastric Tregs expressed these receptors. H pylori induced CCL20 production by gastric epithelial cells via cag pathogenicity island (cagPAI)-dependent NF-κB signalling. Foxp3(+), but not Foxp3(-), CD4 cells from infected mice migrated towards recombinant CCL20 in vitro.

conclusionsAs well as increasing Treg numbers, H pylori infection induces a change in their characteristics. Expression of CCR6, CXCR1 and CXCR2 probably enables their migration towards CCL20 and IL-8 in the infected gastric mucosa. Such qualitative changes may also explain how H pylori protects against some extragastric inflammatory disorders.

Indexed as

AdolescentAdultAgedAged, 80 and overAnimalsCD4-Positive T-LymphocytesCD8-Positive T-LymphocytesCell LineChemokine CCL20ChemokinesChemotaxis, LeukocyteFemaleFlow CytometryGastric MucosaHelicobacter InfectionsHelicobacter pyloriCCL20 protein, humanCCR6 protein, humanChemokine CCL20ChemokinesReceptors, CCR6CHEMOTAXISHELICOBACTER PYLORIMUCOSAL IMMUNOLOGYT LYMPHOCYTES

Identifiers

PMID24436142
PMCPMC4173663
OpenAlexW2158038587

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.