Captopril and lisinopril only inhibit matrix metalloproteinase-2 (MMP-2) activity at millimolar concentrations

Basic & Clinical Pharmacology & Toxicology
Luciana B KuntzeRaquel F Gerlach

Abstract

Matrix metalloproteinase-2 (MMP-2) shares structural similarities with the angiotensin-converting enzyme (ACE). ACE inhibitors have been described to inhibit MMP-2, but this inhibitory potential was not shown using a highly purified MMP-2. This study aimed to investigate the inhibitory potential of captopril and lisinopril regarding MMP-2 activity. The first objective was to test the potential of captopril to change the pH of the buffer solution. The second objective was to test the direct inhibitory effect of captopril and lisinopril on plasma MMP-2 and on recombinant human MMP-2 (rhMMP-2). The in vitro activity assays included gelatin zymography and a fluorimetric assay. Captopril solubilization significantly decreased the pH of the 50 mM Tris buffer solution at the following concentrations: 2 mM (p < 0.05), 4 mM and 8 mM (p < 0.01), while only the 8 mM lisinopril induced a drop in pH (p < 0.05). Thus, only 200 mM buffer solutions were used. Zymography results of plasma MMP-2 and rhMMP-2 showed that inhibition only happened at captopril concentrations ≥ 4 and 1 mM, respectively (p < 0.05), while only the higher concentration of lisinopril (8 mM) inhibited plasma MMP-2 (p < 0.05). In the fluorimetric assay, captopril led to si...Continue Reading

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Citations

Jul 1, 2014·Basic & Clinical Pharmacology & Toxicology·Aline AzevedoRaquel F Gerlach
Dec 7, 2019·Journal of Thrombosis and Thrombolysis·Ugochukwu Shola OwolabiAndrew Paul DeFilippis

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