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Scientific Article
unige:9067 
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Amiloride selectively inhibits the urokinase-type plasminogen activator |
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| Authors | ||
| Published in | FEBS Letters. 1987, vol. 214, no. 1, p. 187-191 | |
| Abstract | The diuretic drug amiloride, an inhibitor of Na+ uptake, competitively inhibits the catalytic activity of the urokinase-type plasminogen activator (u-PA), with a Ki of 7 X 10(-6) M. Generation of plasmin, cleavage of peptide substrates, and interaction of u-PA with a specific macromolecular proteinase inhibitor are all prevented in the presence of the drug. In contrast, amiloride does not affect the activity of either tissue-type plasminogen activator, plasmin, plasma kallikrein or thrombin. The inhibition of u-PA by amiloride may be related to the previously reported inhibition of u-PA-type enzymes by Na+. Amiloride or related compounds could prove useful in selectively controlling u-PA-catalyzed extracellular proteolysis. | |
| Keywords | Amiloride/ pharmacology — Animals — Humans — Kinetics — Plasminogen Activators/ antagonists & inhibitors — Plasminogen Inactivators — Protease Inhibitors/metabolism — Sodium/metabolism — Tissue Plasminogen Activator/antagonists & inhibitors — Urokinase-Type Plasminogen Activator/ antagonists & inhibitors | |
| Identifiers | PMID: 3106085 | |
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| Citation (ISO format) | VASSALLI, Jean-Dominique, BELIN, Dominique. Amiloride selectively inhibits the urokinase-type plasminogen activator. In: FEBS Letters, 1987, vol. 214, n° 1, p. 187-191. https://archive-ouverte.unige.ch/unige:9067 |
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