Hyaluronic Acid Suppresses the Expression of Metalloproteinases in Osteoarthritic Cartilage Stimulated Simultaneously by Interleukin 1? and Mechanical Load.

Pohlig, Florian; Guell, Florian; Lenze, Ulrich; Lenze, Florian W; Mühlhofer, Heinrich M L; Schauwecker, Johannes; Toepfer, Andreas; Mayer-Kuckuk, Philipp; von Eisenhart-Rothe, Rüdiger; Burgkart, Rainer; Salzmann, Gian M

doi:10.1371/journal.pone.0150020

journal article

Title:: Hyaluronic Acid Suppresses the Expression of Metalloproteinases in Osteoarthritic Cartilage Stimulated Simultaneously by Interleukin 1? and Mechanical Load.
Document type:: Journal Article
Author(s):: Pohlig, Florian; Guell, Florian; Lenze, Ulrich; Lenze, Florian W; Mühlhofer, Heinrich M L; Schauwecker, Johannes; Toepfer, Andreas; Mayer-Kuckuk, Philipp; von Eisenhart-Rothe, Rüdiger; Burgkart, Rainer; Salzmann, Gian M
Abstract:: In patients with osteoarthritis (OA), intraarticular injection of hyaluronic acid (HA) frequently results in reduced pain and improved function for prolonged periods of time, i.e. more than 6 months. However, the mechanisms underlying these effects are not fully understood. Our underlying hypothesis is that HA modifies the enzymatic breakdown of joint tissues.To test this hypothesis, we examined osteochondral cylinders from 12 OA patients. In a bioreactor, these samples were stimulated by interleukin 1? (Il1ß) (2 ng/ml) plus mechanical load (2.0 Mpa at 0.5 Hz horizontal and 0.1 Hz vertical rotation), thus the experimental setup recapitulated both catabolic and anabolic clues of the OA joint.Upon addition of HA at either 1 or 3 mg/ml, we observed a significant suppression of expression of metalloproteinase (MMP)-13. A more detailed analysis based on the Kellgren and Lawrence (K&L) OA grade, showed a much greater degree of suppression of MMP-13 expression in grade IV as compared to grade II OA. In contrast to the observed MMP-13 suppression, treatment with HA resulted in a suppression of MMP-1 expression only at 1 mg/ml HA, while MMP-2 expression was not significantly affected by either HA concentration.Together, these data suggest that under concurrent catabolic and anabolic stimulation, HA exhibits a pronounced suppressive effect on MMP-13. In the long-run these findings may benefit the development of treatment strategies aimed at blocking tissue degradation in OA patients.
Journal title abbreviation:: PLoS ONE
Year:: 2016
Journal volume:: 11
Journal issue:: 3
Pages contribution:: e0150020
Language:: eng
Fulltext / DOI:: doi:10.1371/journal.pone.0150020
Pubmed ID:: http://view.ncbi.nlm.nih.gov/pubmed/26934732
Print-ISSN:: 1932-6203
TUM Institution:: Klinik und Poliklinik für Orthopädie und Sportorthopädie
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mediaTUM Gesamtbestand Einrichtungen Schools TUM School of Medicine and Health Departments Clinical Medicine Klinik und Poliklinik für Orthopädie und Sportorthopädie (Prof. von Eisenhart-Rothe)2016