Biological Chemistry, Volume 392, Issue 10, Page 837-847, October 2011. more
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The significance of the Cα substituent in the selective inhibition of matrix metalloproteinases 1 and 9
Abstract Matrix metalloproteinases (MMPs) cleave and degrade most components of the extracellular matrix, and unregulated MMP activity has been correlated to cancer and metastasis. Hence there is a burgeoning need to develop inhibitors that bind selectively to structurally similar MMPs. The inhibition profiles of peptidomimetics containing Cα substituents at the α,β unsaturated carbon were evaluated against the recombinant forms of ADAM17, MMP1, and MMP9. The dicarboxylic acid D2 and hydroxamate C2 inhibited MMP9 but not MMP1. The unsaturated compound E2 displayed selective inhibition for MMP1, compared with the saturated precursor C2, with an IC50 value of 3.91 μm. The molecular basis for this selectivity was further investigated by the molecular docking of E2 and D2 into the active sites of MMP1 and MMP9. These data demonstrate hydrogen-bonding interactions between the carbonyl group of the Cα substituent of E2 and the side chain of Asn180 present in the active site of MMP1. Conversely, the docked MMP9-...
| Authors: | Riyad Domingo; Kelly Chibale; Edward D. Sturrock | |
| Journal: | Biological Chemistry | |
| Year: | 2011 | |
| DOI: | 10.1515/BC.2011.165 | |
| Publication date: | 06-Oct-2011 |
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