Evidence map›Paper›PMID 18025101›Full record

ArticleInfection and immunity2008

Gingipains from Porphyromonas gingivalis increase the chemotactic and respiratory burst-priming properties of the 77-amino-acid interleukin-8 variant.

Irundika H K Dias, Lindsay Marshall, Peter A Lambert, Iain L C Chapple, John B Matthews, Helen R Griffiths

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.2field-weighted citation impact, top 23% 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

22 citing papers in PubMed, 40 citations in OpenAlex.

  1. Trial
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  6. Frontiers in cell and developmental biology · 2025
    Article
  7. Review
  8. Review
  9. Article
  10. Cytokines in Inflammatory Disease.International journal of molecular sciences · 2019
    Review
  11. Manipulation of Neutrophils byFrontiers in cellular and infection microbiology · 2017
    Review
  12. Article
  13. Article
  14. Article
  15. Article
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  18. Article
  19. Neutrophils in periodontal inflammation.Frontiers of oral biology · 2012
    Review
  20. Cleavage of IgG1 and IgG3 by gingipain K from Porphyromonas gingivalis may compromise host defense in progressive periodontitis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2011
    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

6 authors at 2 institutions in 1 country.

Irundika H K DiasSchool of Life and Health Sciences, Aston University, Aston Triangle, Birmingham B4 7ET, United Kingdom.
Lindsay Marshall
Peter A Lambert
Iain L C Chapple
John B Matthews
Helen R Griffiths
Aston University · GBUniversity of Birmingham · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Porphyromonas gingivalis, a gram-negative anaerobe which is implicated in the etiology of active periodontitis, secretes degradative enzymes (gingipains) and sheds proinflammatory mediators (e.g., lipopolysaccharides [LPS]). LPS triggers the secretion of interleukin-8 (IL-8) from immune (72-amino-acid [aa] variant [IL-8(72aa)]) and nonimmune (IL-8(77aa)) cells. IL-8(77aa) has low chemotactic and respiratory burst-inducing activity but is susceptible to cleavage by gingipains. This study shows that both R- and K-gingipain treatments of IL-8(77aa) significantly enhance burst activation by fMLP and chemotactic activity (P < 0.05) but decrease burst activation and chemotactic activity of IL-8(72aa) toward neutrophil-like HL60 cells and primary neutrophils (P < 0.05). Using tandem mass spectrometry, we have demonstrated that R-gingipain cleaves 5- and 11-aa peptides from the N-terminal portion of IL-8(77aa) and the resultant peptides are biologically active, while K-gingipain removes an 8-aa N-terminal peptide yielding a 69-aa isoform of IL-8 that shows enhanced biological activity. During periodontitis, secreted gingipains may differentially affect neutrophil chemotaxis and activation in response to IL-8 according to the cellular source of the chemokine.

Indexed as

Adhesins, BacterialChemotaxisCysteine EndopeptidasesGene ExpressionGingipain Cysteine EndopeptidasesHL-60 CellsHumansInterleukin-8Neutrophil ActivationNeutrophilsPorphyromonas gingivalisRespiratory BurstAdhesins, BacterialCysteine EndopeptidasesGingipain Cysteine EndopeptidasesInterleukin-8

Identifiers

PMID18025101
PMCPMC2223636
OpenAlexW2138662116

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.