title: Rational design and combinatorial evaluation of enzyme inhibitor scaffolds: identification of novel inhibitors of matrix metalloproteinases.
abstract: The discovery of a novel series of heterocyclic matrix metalloproteinase (MMPs) inhibitors is described. Published crystal structures of peptidyl hydroxamates bound to MMPs were the basis for the rational design of diketopiperazine (DKP) inhibitors. Combinatorial libraries were prepared and evaluated for their ability to inhibit collagenase-1, stromelysin-1, and gelatinase-B substrate hydrolysis. Deconvolution of active pools resulted in the identification of potent inhibitors (IC50's < 100 nM) of collagenase-1 and gelatinase-B, with the most potent inhibitor exhibiting an IC50 of 30 nM against collagenase-1. A description of the combinatorial evaluation process, as well as initial SAR interpretation for this novel series, is provided.
authors.affiliation: Affymax Research Institute, 3410 Central Expressway, Santa Clara, California 95051, USA.
authors.forename: A K
authors.initials: AK
authors.lastname: Szardenings
authors.forename: D
authors.initials: D
authors.lastname: Harris
authors.forename: S
authors.initials: S
authors.lastname: Lam
authors.forename: L
authors.initials: L
authors.lastname: Shi
authors.forename: D
authors.initials: D
authors.lastname: Tien
authors.forename: Y
authors.initials: Y
authors.lastname: Wang
authors.forename: D V
authors.initials: DV
authors.lastname: Patel
authors.forename: M
authors.initials: M
authors.lastname: Navre
authors.forename: D A
authors.initials: DA
authors.lastname: Campbell
mesh_terms: D054659:Diketopiperazines; D015195:Drug Design; D004791:Enzyme Inhibitors / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D006801:Humans; D006860:Hydrogen Bonding; D020781:Matrix Metalloproteinase 1; D020780:Matrix Metalloproteinase 9; D061965:Matrix Metalloproteinase Inhibitors; D008666:Metalloendopeptidases / Q000037:antagonists & inhibitors*; D010879:Piperazines / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D013329:Structure-Activity Relationship
chemical_list: D054659:Diketopiperazines; D004791:Enzyme Inhibitors; D061965:Matrix Metalloproteinase Inhibitors; D010879:Piperazines; C010939:2,5-dioxopiperazine; D008666:Metalloendopeptidases; D020780:Matrix Metalloproteinase 9; D020781:Matrix Metalloproteinase 1