Evidence map›Paper›PMID 15014433›Full record

ArticleThe EMBO journal2004

Hyperplastic gastric tumors induced by activated macrophages in COX-2/mPGES-1 transgenic mice.

Hiroko Oshima, Masanobu Oshima, Kayo Inaba, Makoto M Taketo

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 94 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
94citing papers in PubMed, 1 pooled it
13.5field-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

94 citing papers in PubMed, 1 synthesis or guideline pooled it, 247 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. METTL10-Mediated PIAS3 Methylation Links Purine Metabolism to Gastric Cancer Progression.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  5. Review
  6. Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Review
  12. Review
  13. Article
  14. Review
  15. Role of Prostaglandin E2 in the Progression of Gastrointestinal Cancer.Cancer prevention research (Philadelphia, Pa.) · 2022
    Review
  16. Review
  17. Article
  18. Review
  19. Review
  20. Review

34 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

4 authors at 1 institution in 1 country.

Hiroko OshimaDepartment of Pharmacology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Masanobu Oshima
Kayo Inaba
Makoto M Taketo
Kyoto University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cyclooxygenase-2 (COX-2), the rate-limiting enzyme for prostanoid biosynthesis, plays a key role in gastrointestinal carcinogenesis. Among various prostanoids, prostaglandin E2 (PGE2) appears to be most responsible for cancer development. To investigate the role of PGE2 in gastric tumorigenesis, we constructed transgenic mice simultaneously expressing COX-2 and microsomal prostaglandin E synthase (mPGES)-1 in the gastric epithelial cells. The transgenic mice developed metaplasia, hyperplasia and tumorous growths in the glandular stomach with heavy macrophage infiltrations. Although gastric bacterial counts in the transgenic mice were within the normal range, treatment with antibiotics significantly suppressed activation of the macrophages and tumorous hyperplasia. Importantly, the antibiotics treatment did not affect the macrophage accumulation. Notably, treatment of the transgenic mice with lipopolysaccharides induced proinflammatory cytokines through Toll-like receptor 4 in the gastric epithelial cells. These results indicate that an increased level of PGE2 enhances macrophage infiltration, and that they are activated through epithelial cells by the gastric flora, resulting in gastric metaplasia and tumorous growth. Furthermore, Helicobacter infection upregulated epithelial PGE2 production, suggesting that the COX-2/mPGES-1 pathway contributes to the Helicobacter-associated gastric tumorigenesis.

Indexed as

AnimalsAnti-Bacterial AgentsCell DifferentiationCells, CulturedChemokinesCyclooxygenase 2Cyclooxygenase 2 InhibitorsCyclooxygenase InhibitorsCytokinesEpithelial CellsGastric MucosaHelicobacter InfectionsHyperplasiaIntramolecular OxidoreductasesLipopolysaccharidesMacrophage ActivationAnti-Bacterial AgentsChemokinesCyclooxygenase 2Cyclooxygenase 2 InhibitorsCyclooxygenase InhibitorsCytokinesIntramolecular OxidoreductasesLipopolysaccharidesProstaglandin-Endoperoxide SynthasesProstaglandin-E SynthasesPtges protein, mouseReceptors, ImmunologicTlr4 protein, mouseToll-Like Receptor 4

Identifiers

PMID15014433
PMCPMC391075
OpenAlexW2119016440

What OpenQuestion holds

Textmetadata
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.