Record Details

Discovery and biological evaluation of novel 1,4-benzoquinone and related resorcinol derivatives that inhibit 5-lipoxygenase
IR @ National Institute of Animal Biotechnology
Title
Discovery and biological evaluation of novel 1,4-benzoquinone and related resorcinol derivatives that inhibit 5-lipoxygenase
Creator
Rathore, R. S. Sumakanth, M. Reddy, M. S.
Description
5-Lipoxygenase (5-LO), an enzyme that catalyzes the initial steps in the biosynthesis of pro-inflammatory leukotrienes, is an attractive drug target for the pharmacotherapy of inflammatory and allergic diseases. Here, we present the discovery and biological evaluation of novel series of 1,4-benzoquinones and respective resorcinol derivatives that efficiently inhibit human 5-LO, with little effects on other human lipoxygenases. SAR analysis revealed that the potency of the compounds strongly depends on structural features of the lipophilic residues, where bulky naphthyl or dibenzofuran moieties favor 5-LO inhibition. Among the 1,4-benzoquinones, compound Ig 5-[(2-naphthyl)methyl]-2-hydroxy-2,5-cyclohexadiene-1,4-dione potently blocked 5-LO activity in cell-free assays with IC50 = 0.78 mu M, and suppressed 5-LO product synthesis in polymorphonuclear leukocytes with IC50 = 2.3 mu M. Molecular docking studies suggest a concrete binding site for Ig in 5-LO where select pi-pi interactions along with hydrogen bond interactions accomplish binding to the active site of the enzyme. Together, our study reveals novel valuable 5-LO inhibitors with potential for further preclinical assessment as anti-inflammatory compounds. (C) 2013 Elsevier Masson SAS. All rights reserved.
Publisher
Date
2013
Type
Article PeerReviewed
Identifier
Rathore, R. S. and Sumakanth, M. and Reddy, M. S. (2013) Discovery and biological evaluation of novel 1,4-benzoquinone and related resorcinol derivatives that inhibit 5-lipoxygenase. Current Pharmaceutical Design, 19 (26). pp. 4674-4686.
Language