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DOI: 10.1055/s-2002-34411
Free Fatty Acids Inhibit the Activity of Clostridium histolyticum Collagenase and Human Neutrophil Elastase
Publication History
Received: April 12, 2002
Accepted: June 29, 2002
Publication Date:
30 September 2002 (online)
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Abstract
We investigated the ability of free fatty acids to inhibit the activity of Clostridium histolyticum collagenase (EC 3.4.24.3) and human neutrophil elastase (EC 3.4.21.37). We determined the activity of collagenase by degradation of resorufin-labeled casein fluorimetrically. The determination of the elastase activity was performed by a spectrophotometric method using a 4-nitroanilide peptide substrate. We found that most of the tested fatty acids inhibited collagenase at concentrations between 50 μM and 500 μM. For elastase we found an inhibition of the activity at concentrations between 500 nM and 50 μM. The most potent inhibitory fatty acids of both enzymes differed. Thus, as a result for collagenase we can assume that the saturated fatty acids with C16 - C19 were the most potent ones. For elastase the inhibition rate of unsaturated acids was much higher than the rate of the saturated ones. The highly active erucic acid with an IC50 value of 450 nM (elastase) is remarkable.
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Prof. Dr. M. F. Melzig
Institut für Pharmazie
Humboldt-Universität zu Berlin
Goethestr. 54
13086 Berlin
Germany
Email: matthias.f.melzig@rz.hu-berlin.de
Fax: +49-30-924-8280
Phone: +49-30-965-92421