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Abstract Title:

Direct inhibition of matrix metalloproteinase-2 (MMP-2) by (-)-epigallocatechin-3-gallate: A possible role for the fibronectin type II repeats.

Abstract Source:

Gene. 2016 Jul 26. Epub 2016 Jul 26. PMID: 27474452

Abstract Author(s):

Shalinee Jha, Shankar Prasad Kanaujia, Anil M Limaye

Article Affiliation:

Shalinee Jha

Abstract:

Matrix metalloproteinases (MMPs) -2 and -9, also called gelatinases, constitute a distinct subgroup within the MMP family of extracellular matrix remodeling proteases. Gelatinases are implicated in tumor cell invasion and metastasis, and are attractive therapeutic targets. Several synthetic small molecule inhibitors of MMPs developed till date have failed in clinical trials. This has prompted explorations into the gamut of dietary compounds and nutraceuticals for specific inhibitors of MMPs with desirable properties. (-)-epigallocatechin-3-gallate (EGCG), a major green tea polyphenol, is popular as a potential chemotherapeutic agent with demonstrable anti-metastatic and MMP inhibitory activities. Here, we have addressed the mechanism of EGCG-mediated inhibition of MMP-2 using in silico molecular docking approach. We show for the first time that EGCG targets the fibronectin type II repeat regions 1 and 3 of MMP-2, binds amino acids that constitute the exosite of this enzyme and hinders proper positioning of the substrate. This study offers a novel insight into the inhibition of MMP-2 by EGCG and presents a starting point for development of novel therapeutic molecules that can specifically target the gelatinases.

Study Type : In Vitro Study

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Sayer Ji
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