Discovery of Thieno[2,3-<i>d</i>]pyrimidine-Based Hydroxamic Acid Derivatives as Bromodomain-Containing Protein 4/Histone Deacetylase Dual Inhibitors Induce Autophagic Cell Death in Colorectal Carcinoma Cells
作者:Zhaoping Pan、Xiang Li、Yujia Wang、Qinglin Jiang、Li Jiang、Min Zhang、Nan Zhang、Fengbo Wu、Bo Liu、Gu He
DOI:10.1021/acs.jmedchem.9b02178
日期:2020.4.9
Bromodomain-containing protein 4 (BRD4) and histone deacetylases (HDAC) are both attractive epigenetic targets in cancer and other chronic diseases. Based on the integrated fragment-based drug design, synthesis, and in vitro and in vivo evaluations, a series of novel thieno[2,3-d]pyrimidine-based hydroxamic acid derivatives are discovered as selective BRD4–HDAC dual inhibitors. Compound 17c is the
含溴结构域的蛋白质4(BRD4)和组蛋白脱乙酰基酶(HDAC)都是癌症和其他慢性疾病中有吸引力的表观遗传学靶标。基于整合的基于片段的药物设计,合成以及体外和体内评估,发现了一系列新型的基于噻吩并[2,3 - d ]嘧啶的异羟肟酸衍生物,作为选择性的BRD4-HDAC双重抑制剂。化合物17c是BRD4和HDAC的最有效抑制剂,其IC 50值在纳摩尔水平以及c-Myc的表达水平,并增加组蛋白H3的乙酰化。而且17c通过诱导自噬细胞死亡,对大肠癌(CRC)细胞的增殖具有抑制作用。它还在大鼠中具有良好的药代动力学特征,口服生物利用度为40.5%。在HCT-116异种移植体内模型中,17c通过诱导自噬细胞死亡并抑制IL6-JAK-STAT信号通路,对肿瘤的生长表现出有效的抑制作用。我们的结果表明,BRD4-HDAC双重抑制可能是CRC的一种有吸引力的治疗策略。