Structural Requirements of HDAC Inhibitors: SAHA Analogues Modified at the C2 Position Display HDAC6/8 Selectivity
作者:Ahmed T. Negmeldin、Geetha Padige、Anton V. Bieliauskas、Mary Kay H. Pflum
DOI:10.1021/acsmedchemlett.6b00124
日期:2017.3.9
Histone deacetylase (HDAC) proteins are epigenetic regulators that deacetylate protein substrates, leading to subsequent changes in cell function. HDAC proteins are implicated in cancers, and several HDAC inhibitors have been approved by the FDA as anticancer drugs, including SAHA (suberoylanilide hydroxamic acid; Vorinostat and Zolinza). Unfortunately, SAHA inhibits most HDAC isoforms, which limits
组蛋白脱乙酰基酶(HDAC)蛋白是使蛋白质底物脱乙酰基的表观遗传调节剂,从而导致细胞功能发生随后的变化。HDAC蛋白与癌症有关,FDA已批准了几种HDAC抑制剂作为抗癌药物,包括SAHA(亚磺酰苯胺异羟肟酸;伏立诺他和Zolinza)。不幸的是,SAHA抑制了大多数HDAC亚型,这限制了其用作药理学工具的使用,并可能导致临床副作用。在这项工作中,合成了在C2位置取代的SAHA类似物,并在体外和细胞中筛选了HDAC同工型的选择性。与HDAC1,-2和-3相比,最有力和选择性的化合物C2-正己基SAHA对HDAC6和HDAC8表现出亚微摩尔效价,对HDAC6和HDAC8的选择性为49到300倍。对接研究为选择性提供了结构上的理由。