Synthesis, Optimization, and Evaluation of Novel Small Molecules as Antagonists of WDR5-MLL Interaction
作者:Yuri Bolshan、Matthäus Getlik、Ekaterina Kuznetsova、Gregory A. Wasney、Taraneh Hajian、Gennadiy Poda、Kong T. Nguyen、Hong Wu、Ludmila Dombrovski、Aiping Dong、Guillermo Senisterra、Matthieu Schapira、Cheryl H. Arrowsmith、Peter J. Brown、Rima Al-awar、Masoud Vedadi、David Smil
DOI:10.1021/ml300467n
日期:2013.3.14
The WD40-repeat protein WDRS plays a critical role in maintaining the integrity of MLL complexes and fully activating their methyltransferase function. MLL complexes, the trithorax-like family of SET1 methyltransferases, catalyze trimethylation of lysine 4 on histone 3, and they have been widely implicated in various cancers. Antagonism of WDR5 and MLL subunit interaction by small molecules has recently been presented as a practical way to inhibit activity of the MLL1 complex, and N-(2-(4-methylpiperazin-1-yl)-5-substituted-phenyl) benzamides were reported as potent and selective antagonists of such an interaction. Here, we describe the protein crystal structure guided optimization of prototypic compound 2 (K-dis = 7 mu M), leading to identification of more potent antagonist 47 (K-dis = 0.3 mu M).