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Phosphoramidate-based peptidomimetic inhibitors of membrane type-1 matrix metalloproteinase.


ABSTRACT: Membrane-type I matrix metalloproteinases (MT1-MMP) is an enzyme critical to the remodeling and homeostasis of extracellular matrix, and when over expressed it contributes to metastasis and cancer cell progression. Because of its role and implication as a biomarker that is upregulated in various cancers, MT1-MMP has become an attractive target for drug discovery. A small pilot library of peptidomimetics containing a phosphoramidate core as a zinc-binding group was synthesized and tested for inhibitory potency against MT1-MMP. From this library, a novel two residue peptidomimetic scaffold was identified that confers potency against MT1-MMP at submicromolar concentrations. The results of this study confirm that for this scaffold, valine is favored as a P1 residue and leucine in the P1' position. Furthermore, steric tolerance was observed for the N-terminus, thus implicating that a second-generation library could be constructed to extend the scaffold to P2 without concomitant loss of affinity within the MT1-MMP catalytic domain.

SUBMITTER: Mendes DE 

PROVIDER: S-EPMC4701619 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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Phosphoramidate-based peptidomimetic inhibitors of membrane type-1 matrix metalloproteinase.

Mendes Desiree E DE   Wong-On-Wing Annie A   Berkman Clifford E CE  

Journal of enzyme inhibition and medicinal chemistry 20150904 1


Membrane-type I matrix metalloproteinases (MT1-MMP) is an enzyme critical to the remodeling and homeostasis of extracellular matrix, and when over expressed it contributes to metastasis and cancer cell progression. Because of its role and implication as a biomarker that is upregulated in various cancers, MT1-MMP has become an attractive target for drug discovery. A small pilot library of peptidomimetics containing a phosphoramidate core as a zinc-binding group was synthesized and tested for inhi  ...[more]

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