Evidence map›Paper›PMID 18948106›Full record

ArticleGastroenterology2009

Vaccination of mice against H pylori induces a strong Th-17 response and immunity that is neutrophil dependent.

Elizabeth S DeLyria, Raymond W Redline, Thomas G Blanchard

Open access · greenAbstract read
In one paragraph

Article in Gastroenterology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed
14.7field-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

81 citing papers in PubMed, 163 citations in OpenAlex.

  1. [Molecular mechanisms of chronic gastric mucosal inflammation induced byZhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2026
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  2. Frontiers in immunology · 2026
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  4. The immunoregulatory role of helper T cells inFrontiers in immunology · 2025
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  5. Pivotal role ofFrontiers in medicine · 2024
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  6. Strategies ofFrontiers in cellular and infection microbiology · 2024
    Review
  7. Article
  8. Article
  9. Immune Biology and Persistence of Helicobacter pylori in Gastric Diseases.Current topics in microbiology and immunology · 2023
    Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Immunization With a DNA Vaccine Encoding theFrontiers in microbiology · 2021
    Article
  15. Two Distinct Etiologies of Gastric Cancer: Infection and Autoimmunity.Frontiers in cell and developmental biology · 2021
    Review
  16. Review
  17. The role of interleukin-17 in tumor development and progression.The Journal of experimental medicine · 2020
    Review
  18. Review
  19. Outer Membrane Vesicles ofFrontiers in microbiology · 2020
    Article
  20. Review

21 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

3 authors at 1 institution in 1 country.

Elizabeth S DeLyriaDepartment of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA.
Raymond W Redline
Thomas G Blanchard
Case Western Reserve University · US

Funding

TUMOR METABOLISM PROGRAMP30CA043703 · NCI · CASE WESTERN RESERVE UNIVERSITY · PI Drew James Adams · 1987 to 2026
$142.3M
H. PYLORI-SPECIFIC REGULATORY T CELLS THAT LIMIT HOST RESPONSER01AI055710 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI BLANCHARD, THOMAS G · 2004 to 2008
$1.1M
Helicobacter Pylori-Specific Regulatory T Cells that Limit the Host ResponseR56AI055710 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI BLANCHARD, THOMAS G · 2010 to 2010
$263k
NCI NIH HHS P30 CA043703NCI NIH HHS P30 CA43703NIAID NIH HHS AI055710NIAID NIH HHS R01 AI055710NIAID NIH HHS R56 AI055710
6 · The paper itself

Abstract

BACKGROUND &

aimsVaccine efficacy against gastric Helicobacter pylori infection has been shown in mice, but little is known about the mechanisms of bacterial clearance. Our aim was to investigate a possible T-cell/neutrophil pathway of vaccine-induced protection.

methodsNonimmune and immunized mice were compared for their response to H pylori challenge. T-cell responses were assessed by recall assays. Interleukin (IL)-17-induced chemokine production was evaluated by cytokine enzyme-linked immunosorbent assay. In a kinetic study, biopsy specimens were collected at multiple time points postchallenge and assessed for bacterial load and inflammation. Relative levels of T cells, IL-17, interferon gamma, MIP-2, KC, and LIX were determined by quantitative polymerase chain reaction. The role of neutrophils was evaluated by antibody-mediated depletion of neutrophils following challenge.

resultsImmunization induced strong interferon gamma- and IL-17-producing T-cell responses, and IL-17 was capable of inducing significant amounts of KC and MIP-2 from dendritic cells, macrophages, fibroblasts, and gastric epithelial cells. Challenge of immunized mice induced significantly greater gastritis than that of infected mice, preceding significantly lower bacterial loads by day 7. In immune mice, T-cell recruitment to the gastric mucosa correlated with a continuous rise in IL-17 and interferon gamma levels, followed by KC, MIP-2, and LIX production and the recruitment of significant numbers of neutrophils by day 5. Antibody-mediated depletion of neutrophils abrogated vaccine efficacy.

conclusionsVaccination of mice against H pylori results in a significant Th-17 cell recall response associated with increases in chemokines that attract neutrophils to the stomach, which are important for eradication of H pylori.

Indexed as

AnimalsBacterial VaccinesCD4-Positive T-LymphocytesCell MovementChemokinesFemaleGastric MucosaGranulocyte Colony-Stimulating FactorHelicobacter pyloriInflammationInterleukin-17Mast CellsMiceMice, Inbred C57BLNeutrophilsVaccinationBacterial VaccinesChemokinesGranulocyte Colony-Stimulating FactorInterleukin-17

Identifiers

PMID18948106
PMCPMC4960660
OpenAlexW2049476333

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.