Structure-based design, synthesis, and evaluation of inhibitors with high selectivity for PARP-1 over PARP-2
作者:Jiang Yu、Lingling Luo、Tong Hu、Yating Cui、Xiao Sun、Wenfeng Gou、Wenbin Hou、Yiliang Li、Tiemin Sun
DOI:10.1016/j.ejmech.2021.113898
日期:2022.1
polymerase (PARP) inhibitors play a crucial role in cancer therapy. However, most approved PARP inhibitors have lower selectivity to PARP-1 than to PARP-2, so they will inevitably have side effects. Based on the different catalytic domains of PARP-1 and PARP-2, we developed a strategy to design and synthesize highly selective PARP-1 inhibitors. Compounds Y17, Y29, Y31 and Y49 showed excellent PARP-1 inhibition
聚 (ADP-核糖) 聚合酶 (PARP) 抑制剂在癌症治疗中起着至关重要的作用。然而,大多数已获批准的 PARP 抑制剂对 PARP-1 的选择性低于对 PARP-2 的选择性,因此它们不可避免地会产生副作用。基于 PARP-1 和 PARP-2 的不同催化结构域,我们开发了一种设计和合成高选择性 PARP-1 抑制剂的策略。化合物Y17、Y29、Y31和Y49表现出优异的PARP-1抑制作用,其IC 50值分别为0.61、0.66、0.41和0.96 nM。然后,Y49(PARP-1 IC 50 = 0.96 nM,PARP-2 IC 50 = 61.90 nM,选择性 PARP-2/PARP-1 = 64.5) 被证明是最具选择性的 PARP-1 抑制剂。化合物Y29和Y49对 BRCA1 突变 MX-1 细胞的增殖抑制作用比其他癌细胞更强。在 MDA-MB-436 异种移植模型中