Periodontal pathogens affect the level of protease inhibitors in gingival crevicular fluid

Laugisch, O; Schacht, M; Guentsch, A; Kantyka, T; Sroka, A; Stennicke, H R; Pfister, W; Sculean, A; Potempa, J; Eick, S (2012). Periodontal pathogens affect the level of protease inhibitors in gingival crevicular fluid. Molecular oral microbiology, 27(1), pp. 45-56. Frederiksberg (DK): Wiley-Blackwell 10.1111/j.2041-1014.2011.00631.x

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In periodontitis, an effective host-response is primarily related to neutrophils loaded with serine proteases, including elastase (NE) and protease 3 (PR3), the extracellular activity of which is tightly controlled by endogenous inhibitors. In vitro these inhibitors are degraded by gingipains, cysteine proteases produced by Porphyromonas gingivalis. The purpose of this study was to determine the level of selected protease inhibitors in gingival crevicular fluid (GCF) in relation to periodontal infection. The GCF collected from 31 subjects (nine healthy controls, seven with gingivitis, five with aggressive periodontitis and 10 with chronic periodontitis) was analyzed for the levels of elafin and secretory leukocyte protease inhibitor (SLPI), two main tissue-derived inhibitors of neutrophil serine proteases. In parallel, activity of NE, PR3 and arginine-specific gingipains (Rgps) in GCF was measured. Finally loads of P. gingivalis, Aggregatibacter actinomycetemcomitans, Tannerella forsythia and Treponema denticola were determined. The highest values of elafin were found in aggressive periodontitis and the lowest in controls. The quantity of elafin correlated positively with the load of P. gingivalis, Ta. forsythia and Tr. denticola, as well as with Rgps activity. In addition, NE activity was positively associated with the counts of those bacterial species, but not with the amount of elafin. In contrast, the highest concentrations of SLPI were found in periodontally healthy subjects whereas amounts of this inhibitor were significantly decreased in patients infected with P. gingivalis. Periodontopathogenic bacteria stimulate the release of NE and PR3, which activities escape the control through degradation of locally produced inhibitors (SLPI and elafin) by host-derived and bacteria-derived proteases.

Item Type:	Journal Article (Original Article)
Division/Institute:	04 Faculty of Medicine > School of Dental Medicine > Department of Periodontology
UniBE Contributor:	Laugisch, Oliver, Sculean, Anton, Eick, Sigrun
ISSN:	2041-1006
Publisher:	Wiley-Blackwell
Language:	English
Submitter:	Eveline Carmen Schuler
Date Deposited:	04 Oct 2013 14:30
Last Modified:	05 Dec 2022 14:09
Publisher DOI:	10.1111/j.2041-1014.2011.00631.x
PubMed ID:	22230465
Web of Science ID:	000298948900005
URI:	https://boris.unibe.ch/id/eprint/11253 (FactScience: 217325)