Discovery of Sulfated Small Molecule Inhibitors of Matrix Metalloproteinase-8

Elevated matrix metalloproteinase-8 (MMP-8) activity contributes to the etiology of many diseases, including atherosclerosis, pulmonary fibrosis, and sepsis. Yet, very few small molecule inhibitors of MMP-8 have been identified. We reasoned that the synthetic non-sugar mimetics of glycosaminoglycans...

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Main Authors: Shravan Morla, Umesh R. Desai
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Biomolecules
Subjects:
Online Access:https://www.mdpi.com/2218-273X/10/8/1166
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author Shravan Morla
Umesh R. Desai
author_facet Shravan Morla
Umesh R. Desai
author_sort Shravan Morla
collection DOAJ
description Elevated matrix metalloproteinase-8 (MMP-8) activity contributes to the etiology of many diseases, including atherosclerosis, pulmonary fibrosis, and sepsis. Yet, very few small molecule inhibitors of MMP-8 have been identified. We reasoned that the synthetic non-sugar mimetics of glycosaminoglycans may inhibit MMP-8 because natural glycosaminoglycans are known to modulate the functions of various MMPs. The screening a library of 58 synthetic, sulfated mimetics consisting of a dozen scaffolds led to the identification of only two scaffolds, including sulfated benzofurans and sulfated quinazolinones, as promising inhibitors of MMP-8. Interestingly, the sulfated quinazolinones displayed full antagonism of MMP-8 and sulfated benzofuran appeared to show partial antagonism. Of the two, sulfated quinazolinones exhibited a >10-fold selectivity for MMP-8 over MMP-9, a closely related metalloproteinase. Molecular modeling suggested the plausible occupancy of the S<sub>1</sub><sup>′</sup> pocket on MMP-8 as the distinguishing feature of the interaction. Overall, this work provides the first proof that the sulfated mimetics of glycosaminoglycans could lead to potent, selective, and catalytic activity-tunable, small molecular inhibitors of MMP-8.
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spelling doaj.art-9caa7f2a395b49cdafa5bbf56f5ddf182023-11-20T09:35:39ZengMDPI AGBiomolecules2218-273X2020-08-01108116610.3390/biom10081166Discovery of Sulfated Small Molecule Inhibitors of Matrix Metalloproteinase-8Shravan Morla0Umesh R. Desai1Department of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA 23298, USADepartment of Medicinal Chemistry, Virginia Commonwealth University, Richmond, VA 23298, USAElevated matrix metalloproteinase-8 (MMP-8) activity contributes to the etiology of many diseases, including atherosclerosis, pulmonary fibrosis, and sepsis. Yet, very few small molecule inhibitors of MMP-8 have been identified. We reasoned that the synthetic non-sugar mimetics of glycosaminoglycans may inhibit MMP-8 because natural glycosaminoglycans are known to modulate the functions of various MMPs. The screening a library of 58 synthetic, sulfated mimetics consisting of a dozen scaffolds led to the identification of only two scaffolds, including sulfated benzofurans and sulfated quinazolinones, as promising inhibitors of MMP-8. Interestingly, the sulfated quinazolinones displayed full antagonism of MMP-8 and sulfated benzofuran appeared to show partial antagonism. Of the two, sulfated quinazolinones exhibited a >10-fold selectivity for MMP-8 over MMP-9, a closely related metalloproteinase. Molecular modeling suggested the plausible occupancy of the S<sub>1</sub><sup>′</sup> pocket on MMP-8 as the distinguishing feature of the interaction. Overall, this work provides the first proof that the sulfated mimetics of glycosaminoglycans could lead to potent, selective, and catalytic activity-tunable, small molecular inhibitors of MMP-8.https://www.mdpi.com/2218-273X/10/8/1166matrix metalloproteinasesglycosaminoglycanssmall molecule inhibitorsdrug discovery
spellingShingle Shravan Morla
Umesh R. Desai
Discovery of Sulfated Small Molecule Inhibitors of Matrix Metalloproteinase-8
Biomolecules
matrix metalloproteinases
glycosaminoglycans
small molecule inhibitors
drug discovery
title Discovery of Sulfated Small Molecule Inhibitors of Matrix Metalloproteinase-8
title_full Discovery of Sulfated Small Molecule Inhibitors of Matrix Metalloproteinase-8
title_fullStr Discovery of Sulfated Small Molecule Inhibitors of Matrix Metalloproteinase-8
title_full_unstemmed Discovery of Sulfated Small Molecule Inhibitors of Matrix Metalloproteinase-8
title_short Discovery of Sulfated Small Molecule Inhibitors of Matrix Metalloproteinase-8
title_sort discovery of sulfated small molecule inhibitors of matrix metalloproteinase 8
topic matrix metalloproteinases
glycosaminoglycans
small molecule inhibitors
drug discovery
url https://www.mdpi.com/2218-273X/10/8/1166
work_keys_str_mv AT shravanmorla discoveryofsulfatedsmallmoleculeinhibitorsofmatrixmetalloproteinase8
AT umeshrdesai discoveryofsulfatedsmallmoleculeinhibitorsofmatrixmetalloproteinase8