Evidence map›Paper›PMID 33242939›Full record

ArticleThe Korean journal of internal medicine2021

Helicobacter pylori-derived outer membrane vesicles stimulate interleukin 8 secretion through nuclear factor kappa B activation.

Mun Sun Choi, Eun Young Ze, Jae Yong Park, Tae-Seop Shin, Jae Gyu Kim

Abstract read
In one paragraph

Article in The Korean journal of internal medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
–field-weighted citation impact
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

25 citing papers in PubMed.

  1. Article
  2. Outer membrane vesicles fromMicrobiology spectrum · 2026
    Article
  3. Review
  4. Research Status and Prospects ofGastroenterology research and practice · 2026
    Review
  5. Characterization ofFrontiers in microbiology · 2026
    Article
  6. Helicobacter pylori outer membrane vesicle-induced hsa-miR-302a-3p and hsa-miR-184 promote the occurrence and development of gastric cancer.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas · 2026
    Article
  7. Article
  8. Antibiotics Impact the Cytotoxicity and Cytopathic Effect ofInternational journal of molecular sciences · 2025
    Article
  9. Review
  10. Journal of oral microbiology · 2025
    Article
  11. Inflammatory factors collaboratively linkFrontiers in immunology · 2025
    Review
  12. Review
  13. Review
  14. Article
  15. Review
  16. Frontiers in immunology · 2024
    Review
  17. Frontiers in medicine · 2024
    Article
  18. Review
  19. Article
  20. Article
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

5 authors.

Mun Sun ChoiDivision of Gastroenterology, Department of Internal Medicine, Armed Forces Capital Hospital, Seongnam, Korea.
Eun Young ZeDepartment of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea.
Jae Yong ParkDepartment of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea.
Tae-Seop ShinResearch Institute, Chung-Ang University, Seoul, Korea.
Jae Gyu KimDepartment of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea.

Funding

Ministry of EducationNational Research Foundation of Korea 2012R1A1A2007865
6 · The paper itself

Abstract

BACKGROUND/

aimsBacteria-derived outer membrane vesicles (OMVs) are commonly associated with various biological activities and functions. Helicobacter pylori-derived OMVs are thought to contribute to pathogenesis. This study aimed to investigate the effects of H. pylori-derived OMVs.

methodsH. pylori strains were isolated from patients with gastritis, gastric ulcer, or gastric cancer using endoscopic biopsy. The U-937, AGS, and MKN-45 cell lines were exposed to H. pylori and H. pylori-derived OMVs. The expression of interleukin 8 (IL-8) messenger RNA (mRNA) was assessed using reverse transcription-polymerase chain reaction (RT-PCR) and real-time RT-PCR, and IL-8 secretion was analyzed using enzyme-linked immunosorbent assay. Nuclear factor kappa B (NF-κB) activation was evaluated by Western blotting.

resultsH. pylori and H. pylori-derived OMVs induced the expression of IL-8 mRNA and protein. Importantly, the bacteria induced higher IL-8 mRNA and protein expression than the OMVs. IL-8 expression was induced to different levels in response to H. pylori-derived OMVs from hosts with different gastric diseases. Western blotting revealed the increased phosphorylation and reduced degradation of inhibitor of NF-κB alpha in cells exposed to OMVs.

conclusionH. pylori-derived OMVs may aid the development of various gastric diseases by inducing IL-8 production and NF-κB activation.

Indexed as

GastritisHelicobacter InfectionsHelicobacter pyloriGastric MucosaHumansInterleukin-8NF-kappa BInterleukin-8NF-kappa BBacterial outer membrane proteinsExtracellular vesiclesHelicobacter pyloriInterleukin-8NF-kappa B

Identifiers

PMID33242939
PMCPMC8273812

What OpenQuestion holds

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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.