Characterization of Conformationally Constrained Benzanilide Scaffolds for Potent and Selective HDAC8 Targeting
作者:Muhammad Murtaza Hassan、Johan Israelian、Nabanita Nawar、Giovanni Ganda、Pimyupa Manaswiyoungkul、Yasir S. Raouf、David Armstrong、Abootaleb Sedighi、Olasunkanmi O. Olaoye、Fettah Erdogan、Aaron D. Cabral、Fabrizio Angeles、Rabia Altintas、Elvin D. de Araujo、Patrick T. Gunning
DOI:10.1021/acs.jmedchem.0c01025
日期:2020.8.13
selectively bind the catalytic tunnel of HDAC8. The series includes benzanilides, MMH371, MMH409, and MMH410, which exhibit potent in vitro HDAC8 activity (IC50 = 66, 23, and 66 nM, respectively) and up to 410-fold selectivity for HDAC8 over the next targeted HDAC. Experimental and computational analyses of the benzanilide structure docked with human HDAC8 enzyme showed the adoption of a low-energy
组蛋白脱乙酰基酶(HDAC)是多种人类疾病的诱人治疗靶标。当前,所有四种FDA批准的HDAC靶向药物都是非选择性的pan-HDAC抑制剂,在治疗剂量时表现出不良副作用。尽管已提出选择性HDAC抑制以减轻毒性,但靶向的催化结构域却高度保守。在本文中,我们描述了一系列合理设计,构象受限的苯甲酰苯胺折叠剂,它们选择性结合HDAC8的催化通道。该系列包括苯甲酰苯胺,MMH371,MMH409和MMH410,它们均具有强大的体外HDAC8活性(IC 50分别为66、23和66 nM),并且在下一个目标HDAC上对HDAC8的选择性高达410倍。对与人HDAC8酶对接的苯甲酰苯胺结构的实验和计算分析表明,采用了低能L形构象异构体,该构象有利于HDAC8选择性。构象受限的HDAC8抑制剂为进一步确定患病细胞中HDAC8的临床应用和药理学敲除的安全性提供了一种替代性的生物探针。