Chapter title |
Assessment of Synthetic Matrix Metalloproteinase Inhibitors by Fluorogenic Substrate Assay
|
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Chapter number | 13 |
Book title |
Breast Cancer
|
Published in |
Methods in molecular biology, January 2016
|
DOI | 10.1007/978-1-4939-3444-7_13 |
Pubmed ID | |
Book ISBNs |
978-1-4939-3442-3, 978-1-4939-3444-7
|
Authors |
Ty J. Lively, Dale B. Bosco, Zahraa I. Khamis, Qing-Xiang Amy Sang, Lively, Ty J., Bosco, Dale B., Khamis, Zahraa I., Sang, Qing-Xiang Amy |
Abstract |
Matrix metalloproteinases (MMPs) are a family of metzincin enzymes that act as the principal regulators and remodelers of the extracellular matrix (ECM). While MMPs are involved in many normal biological processes, unregulated MMP activity has been linked to many detrimental diseases, including cancer, neurodegenerative diseases, stroke, and cardiovascular disease. Developed as tools to investigate MMP function and as potential new therapeutics, matrix metalloproteinase inhibitors (MMPIs) have been designed, synthesized, and tested to regulate MMP activity. This chapter focuses on the use of enzyme kinetics to characterize inhibitors of MMPs. MMP activity is measured via fluorescence spectroscopy using a fluorogenic substrate that contains a 7-methoxycoumarin-4-acetic acid N-succinimidyl ester (Mca) fluorophore and a 2,4-dinitrophenyl (Dpa) quencher separated by a scissile bond. MMP inhibitor (MMPI) potency can be determined from the reduction in fluorescent intensity when compared to the absence of the inhibitor. This chapter describes a technique to characterize a variety of MMPs through enzyme inhibition assays. |
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