3-Substituted-<i>N</i>-(4-Hydroxynaphthalen-1-yl)arylsulfonamides as a Novel Class of Selective Mcl-1 Inhibitors: Structure-Based Design, Synthesis, SAR, and Biological Evaluation
作者:Fardokht A. Abulwerdi、Chenzhong Liao、Ahmed S. Mady、Jordan Gavin、Chenxi Shen、Tomasz Cierpicki、Jeanne A. Stuckey、H. D. Hollis Showalter、Zaneta Nikolovska-Coleska
DOI:10.1021/jm500010b
日期:2014.5.22
selective Mcl-1 inhibitor and its binding to the BH3 binding groove of Mcl-1 was confirmed by several different, but complementary, biochemical and biophysical assays. Guided by structure-based drug design and supported by NMR experiments, comprehensive SAR studies were undertaken and a potent and selective inhibitor, compound 21, was designed which binds to Mcl-1 with a Ki of 180 nM. Biological characterization
Mcl-1 是 Bcl-2 蛋白家族的抗细胞凋亡成员,是一种经过验证且有吸引力的癌症治疗靶点。Mcl-1 在许多癌症中的过度表达导致疾病进展和对当前化疗药物的抵抗。利用高通量筛选,化合物1被鉴定为选择性 Mcl-1 抑制剂,并且其与 Mcl-1 的 BH3 结合沟的结合已通过几种不同但互补的生化和生物物理测定得到证实。在基于结构的药物设计的指导下和 NMR 实验的支持下,进行了全面的 SAR 研究,并设计了一种有效的选择性抑制剂化合物21,它以180 nM的K i与 Mcl-1结合。21 的生物学特性表明它破坏了内源性 Mcl-1 和生物素化 Noxa-BH3 肽的相互作用,通过 Bak/Bax 依赖性机制导致细胞死亡,并选择性地使过表达 Mcl-1 的 Eμ-myc 淋巴瘤敏感,但不使过度表达的 Eμ-myc 淋巴瘤细胞敏感Bcl-2。用化合物21处理人白血病细胞系通过激活 caspase-3