RCSB PDB - 4HXK: Brd4 Bromodomain 1 complex with 6,7-DIHYDROTHIENO[3,2-C]PYRIDIN-5(4H)-YL(1H-IMIDAZOL-1-YL)METHANONE inhibitor (original) (raw)
Fragment-Based Drug Discovery of 2-Thiazolidinones as Inhibitors of the Histone Reader BRD4 Bromodomain.
[Zhao, L.](/search?q=citation.rcsb%5Fauthors:Zhao, L.), [Cao, D.](/search?q=citation.rcsb%5Fauthors:Cao, D.), [Chen, T.](/search?q=citation.rcsb%5Fauthors:Chen, T.), [Wang, Y.](/search?q=citation.rcsb%5Fauthors:Wang, Y.), [Miao, Z.](/search?q=citation.rcsb%5Fauthors:Miao, Z.), [Xu, Y.](/search?q=citation.rcsb%5Fauthors:Xu, Y.), [Chen, W.](/search?q=citation.rcsb%5Fauthors:Chen, W.), [Wang, X.](/search?q=citation.rcsb%5Fauthors:Wang, X.), [Li, Y.](/search?q=citation.rcsb%5Fauthors:Li, Y.), [Du, Z.](/search?q=citation.rcsb%5Fauthors:Du, Z.), [Xiong, B.](/search?q=citation.rcsb%5Fauthors:Xiong, B.), [Li, J.](/search?q=citation.rcsb%5Fauthors:Li, J.), [Xu, C.](/search?q=citation.rcsb%5Fauthors:Xu, C.), [Zhang, N.](/search?q=citation.rcsb%5Fauthors:Zhang, N.), [He, J.](/search?q=citation.rcsb%5Fauthors:He, J.), [Shen, J.](/search?q=citation.rcsb%5Fauthors:Shen, J.)
(2013) J Med Chem 56: 3833-3851
PubMed: 23530754 Search on PubMed
PubMed Abstract:
Recognizing acetyllysine of histone is a vital process of epigenetic regulation that is mediated by a protein module called bromodomain. To contribute novel scaffolds for developing into bromodomain inhibitors, we utilize a fragment-based drug discovery approach. By successively applying docking and X-ray crystallography, we were able to identify 9 fragment hits from diffracting more than 60 crystals. In the present work, we described four of them and carried out the integrated lead optimization for fragment 8, which bears a 2-thiazolidinone core. After several rounds of structure guided modifications, we assessed the druggability of 2-thiazolidinone by modulating in vitro pharmacokinetic studies and cellular activity assay. The results showed that two potent compounds of 2-thiazolidinones have good metabolic stability. Also, the cellular assay confirmed the activities of 2-thiazolidinones. Together, we hope the identified 2-thiazolidinone chemotype and other fragment hits described herein can stimulate researchers to develop more diversified bromodomain inhibitors.
Organizational Affiliation:
Department of Medicinal Chemistry, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai 201203, China.