Evidence map›Paper›PMID 27334899›Full record

ArticleEuropean journal of immunology2016

Periodontitis-associated pathogens P. gingivalis and A. actinomycetemcomitans activate human CD14(+) monocytes leading to enhanced Th17/IL-17 responses.

Wan-Chien Cheng, Saskia D van Asten, Lachrissa A Burns, Hayley G Evans, Gina J Walter, Ahmed Hashim, Francis J Hughes, Leonie S Taams

Open access · hybridAbstract read
In one paragraph

Article in European journal of immunology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 2 pooled it
4.8field-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

47 citing papers in PubMed, 2 syntheses or guidelines pooled it, 84 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. The Role of IL-17 in Periodontitis and Its Systemic Connections.International journal of molecular sciences · 2025
    Review
  6. Role of regulatory immune cells in pathogenesis and therapy of periodontitis.Naunyn-Schmiedeberg's archives of pharmacology · 2025
    Review
  7. Review
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. The oral-gut axis: a missing piece in the IBD puzzle.Inflammation and regeneration · 2023
    Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. The Role of IL-17 in the Pathogenesis of Oral Squamous Cell Carcinoma.International journal of molecular sciences · 2023
    Review
  19. The Role of the Oral Microbiome in the Development of Diseases.International journal of molecular sciences · 2023
    Review
  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

8 authors at 4 institutions in 2 countries.

Wan-Chien ChengDivision of Immunology, Infection & Inflammatory Disease, Centre for Molecular and Cellular Biology of Inflammation, King's College London, London, UK.
Saskia D van AstenDivision of Immunology, Infection & Inflammatory Disease, Centre for Molecular and Cellular Biology of Inflammation, King's College London, London, UK.
Lachrissa A BurnsDivision of Immunology, Infection & Inflammatory Disease, Centre for Molecular and Cellular Biology of Inflammation, King's College London, London, UK.
Hayley G EvansDivision of Immunology, Infection & Inflammatory Disease, Centre for Molecular and Cellular Biology of Inflammation, King's College London, London, UK.
Gina J WalterDivision of Immunology, Infection & Inflammatory Disease, Centre for Molecular and Cellular Biology of Inflammation, King's College London, London, UK.
Ahmed HashimCentre for Immunology and Infectious Disease, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
Francis J HughesDepartment of Periodontology, Dental Institute, King's College London, London, UK.
Leonie S TaamsDivision of Immunology, Infection & Inflammatory Disease, Centre for Molecular and Cellular Biology of Inflammation, King's College London, London, UK. leonie.taams@kcl.ac.uk.
Centre for Inflammation Research · GBKing's College London · GBNational Defense Medical Center · TWQueen Mary University of London · GB

Funding

Arthritis Research UK 19307Biotechnology and Biological Sciences Research Council BB/M503289/1Versus Arthritis 19307
6 · The paper itself

Abstract

The Th17/IL-17 pathway is implicated in the pathogenesis of periodontitis (PD), however the mechanisms are not fully understood. We investigated the mechanism by which the periodontal pathogens Porphyromonas gingivalis (Pg) and Aggregatibacter actinomycetemcomitans (Aa) promote a Th17/IL-17 response in vitro, and studied IL-17(+) CD4(+) T-cell frequencies in gingival tissue and peripheral blood from patients with PD versus periodontally healthy controls. Addition of Pg or Aa to monocyte/CD4(+) T-cell co-cultures promoted a Th17/IL-17 response in vitro in a dose- and time-dependent manner. Pg or Aa stimulation of monocytes resulted in increased CD40, CD54 and HLA-DR expression, and enhanced TNF-α, IL-1β, IL-6 and IL-23 production. Mechanistically, IL-17 production in Pg-stimulated co-cultures was partially dependent on IL-1β, IL-23 and TLR2/TLR4 signalling. Increased frequencies of IL-17(+) cells were observed in gingival tissue from patients with PD compared to healthy subjects. No differences were observed in IL-17(+) CD4(+) T-cell frequencies in peripheral blood. In vitro, Pg induced significantly higher IL-17 production in anti-CD3 mAb-stimulated monocyte/CD4(+) T-cell co-cultures from patients with PD compared to healthy controls. Our data suggest that periodontal pathogens can activate monocytes, resulting in increased IL-17 production by human CD4(+) T cells, a process that appears enhanced in patients with PD.

Indexed as

Aggregatibacter actinomycetemcomitansCell Culture TechniquesCoculture TechniquesCytokinesGingivaHumansImmunity, InnateInterleukin-17Lipopolysaccharide ReceptorsMonocytesPeriodontitisPhenotypePorphyromonas gingivalisTh17 CellsCytokinesInterleukin-17Lipopolysaccharide ReceptorsAggregatibacter actinomycetemcomitansInterleukin-17Periodontal diseasePorphyromonas gingivalisT helper 17 cells

Identifiers

PMID27334899
PMCPMC5031191
OpenAlexW2466285639

What OpenQuestion holds

Textmetadata
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.