Design, synthesis and in vitro evaluation of amidoximes as histone deacetylase inhibitors for cancer therapy
作者:Peifu Jiao、Peng Jin、Chencan Li、Lechao Cui、Lihua Dong、Bin Pan、Wentong Song、Liang Ma、Jinlong Dong、Lei Song、Xinjie Jin、Faming Li、Maosheng Wan、Zhitao Lv、Qiaohong Geng
DOI:10.1016/j.bmcl.2016.08.073
日期:2016.10
Amindoximes are geometric isomers of N-hydroxyamidines which are bioisosteres of hydroxamates. Since amindoxime group is capable of chelating transition metal ions including zinc ion, amindoximes should possess histone deacetylases (HDACs) inhibitory activity. In this work, we designed and synthesized a series of amindoximes, examined their inhibitory activities against HDACs, and investigated their cytotoxicity to human cancer cells. Preliminary results demonstrated that amindoximes possessed submicromolar HDACs inhibitory activity, with noteworthy enhancement compared with hydroxamates. Furthermore, the amindoximes arrested HCT116 and A549 cells in G2/M phase and showed good efficacy in inducing cells death. We provided a proof-of-concept that amindoximes could be used as HDACs inhibitors and hold great promise as epigenetic drugs. (C) 2016 Elsevier Ltd. All rights reserved.