Evidence map›Paper›PMID 27058037›Full record

ArticlePloS one2016

Porphyromonas gingivalis Gingipain-Dependently Enhances IL-33 Production in Human Gingival Epithelial Cells.

Hiroyuki Tada, Takashi Matsuyama, Takashi Nishioka, Makoto Hagiwara, Yusuke Kiyoura, Hidetoshi Shimauchi, Kenji Matsushita

Open access · goldAbstract readComparative Study
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
4.0field-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, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. The Influence of Genetic Polymorphisms ofInternational journal of dentistry · 2025
    Article
  5. Article
  6. Article
  7. Review
  8. Update on B Cell Response in Periodontitis.Advances in experimental medicine and biology · 2022
    Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Oral Mucosal Epithelial Cells.Frontiers in immunology · 2019
    Review
  16. The Role of IL-33/ST2 Pathway in Tumorigenesis.International journal of molecular sciences · 2018
    Review
  17. Article
  18. Review
  19. Article
  20. Review
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 4 institutions in 1 country.

Hiroyuki TadaDepartment of Oral Disease Research, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan.
Takashi MatsuyamaDepartment of Periodontology, Kagoshima University Graduate School of Medical and Dental Sciences, Sakuragaoka, Kagoshima, Japan.
Takashi NishiokaDivision of Oral Diagnosis, Tohoku University Graduate School of Dentistry, Sendai, Miyagi, Japan.
Makoto HagiwaraDepartment of Oral Disease Research, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan.
Yusuke KiyouraDepartment of Oral Medical Science, Ohu University School of Dentistry, Koriyama, Fukushima, Japan.
Hidetoshi ShimauchiDivision of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry, Sendai, Miyagi, Japan.
Kenji MatsushitaDepartment of Oral Disease Research, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan.
Tohoku University · JPNational Center for Geriatrics and Gerontology · JPKagoshima University · JPOhu University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The cytokine IL-33 is constitutively expressed in epithelial cells and it augments Th2 cytokine-mediated inflammatory responses by regulating innate immune cells. We aimed to determine the role of the periodontal pathogen, Porphyromonas gingivalis, in the enhanced expression of IL-33 in human gingival epithelial cells. We detected IL-33 in inflamed gingival epithelium from patients with chronic periodontitis, and found that P. gingivalis increased IL-33 expression in the cytoplasm of human gingival epithelial cells in vitro. In contrast, lipopolysaccharide, lipopeptide, and fimbriae derived from P. gingivalis did not increase IL-33 expression. Specific inhibitors of P. gingivalis proteases (gingipains) suppressed IL-33 mRNA induction by P. gingivalis and the P. gingivalis gingipain-null mutant KDP136 did not induce IL-33 expression. A small interfering RNA for protease-activated receptor-2 (PAR-2) as well as inhibitors of phospholipase C, p38 and NF-κB inhibited the expression of IL-33 induced by P. gingivalis. These results indicate that the PAR-2/IL-33 axis is promoted by P. gingivalis infection in human gingival epithelial cells through a gingipain-dependent mechanism.

Indexed as

Adhesins, BacterialBlotting, WesternCarcinoma, Squamous CellCase-Control StudiesCells, CulturedCysteine EndopeptidasesCytokinesEpithelial CellsFluorescent Antibody TechniqueGingipain Cysteine EndopeptidasesGingivaHumansImmunoenzyme TechniquesInterleukin-33PeriodontitisPorphyromonas gingivalisAdhesins, BacterialCysteine EndopeptidasesCytokinesGingipain Cysteine EndopeptidasesInterleukin-33RNA, Messenger

Identifiers

PMID27058037
PMCPMC4825981
OpenAlexW2322637502

What OpenQuestion holds

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LicenceCC BY
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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.