Evidence map›Paper›PMID 19495976›Full record

ArticleDigestive diseases and sciences2010

Involvement of Ras and AP-1 in Helicobacter pylori-induced expression of COX-2 and iNOS in gastric epithelial AGS cells.

Soon Ok Cho, Joo Weon Lim, Kyung Hwan Kim, Hyeyoung Kim

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In one paragraph

Article in Digestive diseases and sciences, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
4.1field-weighted citation impact, top 6% 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

27 citing papers in PubMed, 51 citations in OpenAlex.

  1. The immunopathogenesis ofFrontiers in microbiology · 2024
    Review
  2. Animal Models andJournal of clinical medicine · 2022
    Review
  3. The Effects of Vitamins and Micronutrients onJournal of immunology research · 2022
    Review
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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 2 institutions in 1 country.

Soon Ok ChoDepartment of Pharmacology, Brain Korea 21 Project for Medical Sciences, Seoul, 120-752, Korea.
Joo Weon Lim
Kyung Hwan Kim
Hyeyoung Kim
Yonsei University · KRKorea Institute of Brain Science · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Helicobacter pylori (H. pylori) is an important risk factor for chronic gastritis, peptic ulcer, and gastric cancer. The genetic differences of H. pylori isolates play a role in the clinical outcome of the infection. Inflammatory genes including cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) are involved in H. pylori gastritis. Transcription factor AP-1 is composed of c-Fos and c-Jun and mediates inflammation and carcinogenesis. Ras acts as a regulator for AP-1 activation in various cells. We investigated whether H. pylori in a Korean isolate (HP99), a cagA ( + ), vacA ( + ) strain, induces the expression of c-Fos and c-Jun for AP-1 activation to induce COX-2 and iNOS and whether HP99-induced expressions of COX-2 and iNOS are mediated by Ras and AP-1, determined by the expressions of c-Fos and c-Jun, in gastric epithelial AGS cells, using transfection with mutant genes for Ras (ras N-17) and c-Jun (TAM-67). As a result, HP99 induced the expression of c-Fos and c-Jun and the expressions of COX-2 and iNOS in AGS cells. Transfection with mutant genes for Ras or c-Jun suppressed HP99-induced expressions of COX-2 and iNOS in AGS cells. In conclusion, H. pylori in a Korean isolate induces the expression of COX-2 and iNOS via AP-1 activation, which may be mediated by Ras and the expression of c-Fos and c-Jun in gastric epithelial cells.

Indexed as

AdenocarcinomaCell Line, TumorCyclooxygenase 2DinoprostoneEnzyme InductionEpithelial CellsGastric MucosaGastritisGene Expression RegulationHelicobacter InfectionsHelicobacter pyloriHumansNitric Oxide Synthase Type IINitritesPeptic UlcerProto-Oncogene Proteins c-fosCyclooxygenase 2DinoprostoneNitric Oxide Synthase Type IINitritesNOS2 protein, humanProto-Oncogene Proteins c-fosProto-Oncogene Proteins c-junPTGS2 protein, humanras ProteinsRNA, MessengerTranscription Factor AP-1

Identifiers

PMID19495976
OpenAlexW2074295950

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.