Cited by 51Oral microbiology and periodontitis researchBacterial biofilms and quorum sensingPeriodontal Regeneration and Treatments

Cytokine Degradation by Biofilms of Porphyromonas gingivalis

Fletcher, Julie, Nair, Sean, Poole, Steven, Henderson, Brian, Wilson, Michael·1998·Current Microbiology

Abstract

The aim of this study was to determine whether biofilms of Porphyromonas gingivalis could proteolytically degrade the cytokines interleukin (IL)-1beta, IL-6, or IL-1 receptor antagonist (IL-1ra). Biofilms were grown on membrane filters on the surface of Wilkins-Chalgren blood agar. The biofilms were removed from the plates, and solutions containing 2.5 microg/ml of each cytokine were added. Following incubation for up to 4.0 h, supernatants from the biofilms were subjected to SDS-PAGE. The separated proteins were transferred by Western blotting to PVDF membranes and probed with peroxidase-conjugated antibodies recognizing both the intact cytokines and their degradation products. After 2 h, no intact IL-1beta, IL-6, or IL-1ra were detectable. Cytokine proteolysis also occurred in the presence of horse serum. These results demonstrate that biofilm-grown P. gingivalis can degrade both pro- and anti-inflammatory cytokines and so may be able to perturb cytokine networks in vivo by eliminating cytokines from the local environment.

Integrity signals

Registry

Crossref · 10.1007/s002849900297

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  • Gingipains, trypsin-like cysteine proteinases produced by Porphyromonas gingivalis, can cleave IL-1β, IL-6, and IL-1ra.

    “Likewise, gingipains, a trypsin-like cysteine proteinases produced by Porphyromonas gingivalis, can cleave IL-1β, IL-6, and IL-1ra.149”

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Authors
Fletcher, J., Nair, S., Poole, S., Henderson, B., & Wilson, M.
Affiliations
  • University College London (GB)
  • National Institute for Biological Standards and Control (GB)
Venue
Current Microbiology
Published
1998-04-01
Volume
36
Issue
4
Pages
216-219
ISSN
  • 0343-8651 (ISSN-L)
  • 1432-0991
OpenAlex
W2029995817
Cited by
51
References
10
Citations by year
2026: 1 · 2025: 1 · 2023: 1 · 2021: 1 · 2020: 1 · 2019: 1 · 2016: 3 · 2014: 2 · 2013: 7 · 2012: 1
FWCI
10.21
Type
journal article
Language
en
Open access
closed
Locations
  • Current Microbiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Dentistry › Periodontics › Oral microbiology and periodontitis research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bacterial biofilms and quorum sensing
  • Health Sciences › Medicine › Urology › Periodontal Regeneration and Treatments
Keywords
Porphyromonas gingivalis, biofilm, cytokine degradation, proteolysis, IL-1β, interleukin-6, interleukin-1 receptor antagonist, periodontal pathogens, anti-inflammatory cytokines, inflammatory cytokines, host-pathogen interaction
MeSH terms
Interleukin-1, Blotting, Western, Interleukin-6, Porphyromonas gingivalis, Receptors, Interleukin-1, Biofilms

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