Structure–Activity Relationship Study of <i>N</i><sup>6</sup>-Benzoyladenine-Type BRD4 Inhibitors and Their Effects on Cell Differentiation and TNF-α Production
作者:Seika Amemiya、Takao Yamaguchi、Taki Sakai、Yuichi Hashimoto、Tomomi Noguchi-Yachide
DOI:10.1248/cpb.c16-00410
日期:——
Bromodomains are epigenetic ‘readers’ of histone acetylation. The first potent bromodomain and extra-terminal domain (BET) inhibitors, (+)-JQ1 and I-BET762 (also known as GSK525762), were reported in 2010. Some BET inhibitors are already under clinical trial for the treatment of cancers, but so far, only a few chemical scaffolds are available. We have reported potent N6-benzoyladenine-based inhibitors of BRD4, a BET family member that serves as a key mediator of transcriptional elongation. Here we present an analysis of the structure–activity relationships of these inhibitors. Among the compounds examined, 20, 28 and 29 enhanced all-trans retinoic acid (ATRA)-induced HL-60 cell differentiation and inhibited tumor necrosis factor (TNF)-α production by THP-1 cells.
溴结构域是组蛋白乙酰化的表观遗传 "阅读器"。2010 年报道了第一种强效溴化多域和末端外域(BET)抑制剂--(+)-JQ1 和 I-BET762(又称 GSK525762)。一些 BET 抑制剂已用于治疗癌症的临床试验,但迄今为止,只有少数化学支架可用。我们已经报道了基于 N6-苯甲酰基腺嘌呤的 BRD4 强效抑制剂,BRD4 是一种 BET 家族成员,是转录伸长的关键介质。在此,我们对这些抑制剂的结构-活性关系进行了分析。在所研究的化合物中,20、28 和 29 增强了全反式维甲酸(ATRA)诱导的 HL-60 细胞分化,并抑制了 THP-1 细胞产生肿瘤坏死因子(TNF)-α。