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Biological Chemistry

Editor-in-Chief: Brüne, Bernhard

Editorial Board: Buchner, Johannes / Lei, Ming / Ludwig, Stephan / Thomas, Douglas D. / Turk, Boris / Wittinghofer, Alfred

IMPACT FACTOR 2018: 3.014
5-year IMPACT FACTOR: 3.162

CiteScore 2018: 3.09

SCImago Journal Rank (SJR) 2018: 1.482
Source Normalized Impact per Paper (SNIP) 2018: 0.820

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Volume 383, Issue 1


The Plasminogen Activating System in Periodontal Health and Disease

Bertil Kinnby
Published Online: 2005-06-01 | DOI: https://doi.org/10.1515/BC.2002.008


The plasminogen activating system is important for extracellular proteolysis and plays a regulatory role in interactions with other tissue degrading systems. Studies on the plasminogen activating system in gingival crevicular fluid (GCF) as well as gingival tissue are reviewed. tPA, uPA, PAI-1 and PAI-2 have all been detected in GCF. Especially tPA and PAI-2 are found in high concentrations. In tissue studies fibrinolytic activity has been found in the gingival pocket epithelium in humans and in animal studies. tPA and PAI-2 have been detected there immunohistochemically. Local production of the PAs and PAIs has been verified with in situ hybridization. In inflammation, a more intense and widespread immunohistochemical staining of tPA and PAI-2 is seen. Higher concentrations of tPA and PAI-2 are found in GCF but the balance between them seems to be constant. A systemically disturbed balance of the plasminogen activating system in GCF has been observed during pregnancy, with a possible protective function of PAI-2. In studies of periodontitis, the production of PAI-2 seemed to be locally lowered at impaired sites. In a study of children, a higher inflammatory response to bacterial plaque was accompanied by a higher fibrinolytic ativity in GCF samples. Bacterial LPS has been found to change the ratio of tPA to PAI-2 in cultured gingival fibroblasts. Interactions between PAI-2 and a protease in the gingival epithelium has been verified through the immunohistochemical detection of relaxed PAI-2.

About the article

Published Online: 2005-06-01

Published in Print: 2002-01-23

Citation Information: Biological Chemistry, Volume 383, Issue 1, Pages 85–92, ISSN (Print) 1431-6730, DOI: https://doi.org/10.1515/BC.2002.008.

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