Evidence map›Paper›PMID 22610150›Full record

ArticleInflammation research : official journal of the European Histamine Research Society ... [et al.]2012

Helicobacter pylori promotes apoptosis, activates cyclooxygenase (COX)-2 and inhibits heat shock protein HSP70 in gastric cancer epithelial cells.

Aneta Targosz, Tomasz Brzozowski, Piotr Pierzchalski, Urszula Szczyrk, Agata Ptak-Belowska, Stanislaw Jan Konturek, Wieslaw Pawlik

Open access · hybridAbstract read
In one paragraph

Article in Inflammation research : official journal of the European Histamine Research Society ... [et al.], 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
5.0field-weighted citation impact, top 5% 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

21 citing papers in PubMed, 51 citations in OpenAlex.

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  12. Observational
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  16. 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

7 authors at 1 institution in 1 country.

Aneta TargoszDepartment of Physiology, Jagiellonian University Medical College, 16 Grzegorzecka Str., 31-531, Cracow, Poland.
Tomasz Brzozowski
Piotr Pierzchalski
Urszula Szczyrk
Agata Ptak-Belowska
Stanislaw Jan Konturek
Wieslaw Pawlik
Jagiellonian University · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveApoptosis plays an important role in the regulation of gastric epithelial cell number and gastrointestinal disorders induced by Helicobacter pylori (Hp). Heat shock proteins (HSPs) are involved in cell integrity, cell growth and in gastric mucosa colonized by Hp. COX-2 was implicated in Hp-induced carcinogenesis but the effects of this germ and CagA cytotoxin on HSP70, COX-2, Bax and Bcl-2 in gastric cancer epithelial cells have been little studied. MATERIAL AND

methodsWe determined the expression for HSP70, Bax and Bcl-2 in human gastric epithelial MKN7 cells incubated with live strain Hp (cagA + vacA+) with or without co-incubation with exogenous CagA and NS-398, the selective COX-2 inhibitor. After 3-48 h of incubation, the expression of HSP70, COX-2, Bax and Bcl-2 mRNA and proteins were determined by RT-PCR and immunoprecipitation.

resultsHp inhibited expression for HSP70 and this was significantly potentiated by exogenous CagA. Co-incubation of epithelial cells with Hp, without or with CagA increased Bax expression and simultaneously decreased expression for Bcl-2. The increase in COX-2 mRNA and Bax expression were significantly inhibited by NS-398. We conclude that Hp promotes apoptosis in adenocarcinoma gastric epithelial cells in vitro and this is associated with activation of COX-2 and inhibition of HSP70.

Indexed as

ApoptosisHelicobacter pyloriAntigens, BacterialBacterial Proteinsbcl-2-Associated X ProteinCell Line, TumorCyclooxygenase 2Cyclooxygenase InhibitorsEpithelial CellsHSP70 Heat-Shock ProteinsHumansNitrobenzenesProto-Oncogene Proteins c-bcl-2RNA, MessengerStomach NeoplasmsSulfonamidesAntigens, BacterialBacterial ProteinsBAX protein, humanbcl-2-Associated X ProteincagA protein, Helicobacter pyloriCyclooxygenase 2Cyclooxygenase InhibitorsHSP70 Heat-Shock ProteinsN-(2-cyclohexyloxy-4-nitrophenyl)methanesulfonamideNitrobenzenesProto-Oncogene Proteins c-bcl-2PTGS2 protein, humanRNA, MessengerSulfonamidesVacA protein, Helicobacter pylori

Identifiers

PMID22610150
PMCPMC3418497
OpenAlexW2090316478

What OpenQuestion holds

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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.