Discovery of Novel Bromophenol–Thiosemicarbazone Hybrids as Potent Selective Inhibitors of Poly(ADP-ribose) Polymerase-1 (PARP-1) for Use in Cancer
作者:Chuanlong Guo、Lijun Wang、Xiuxue Li、Shuaiyu Wang、Xuemin Yu、Kuo Xu、Yue Zhao、Jiao Luo、Xiangqian Li、Bo Jiang、Dayong Shi
DOI:10.1021/acs.jmedchem.8b01946
日期:2019.3.28
Poly(ADP-ribose) polymerase-1 (PARP-1) is a new potential target for anticancer drug discovery. A series of bromophenol-thiosemicarbazone hybrids as PARP-1 inhibitors were designed, synthesized, and evaluated for their antitumor activities. Among them, the most promising compound, 11, showed excellent selective PARP-1 inhibitory activity (IC50 = 29.5 nM) over PARP-2 (IC50 > 1000 nM) and potent anticancer
聚(ADP-核糖)聚合酶-1(PARP-1)是抗癌药物发现的新潜在目标。设计,合成并评估了一系列作为PARP-1抑制剂的溴酚-硫代半碳杂zone杂化物的抗肿瘤活性。其中,最有前途的化合物11对PARP-2(IC50> 1000 nM)表现出优异的选择性PARP-1抑制活性(IC50 = 29.5 nM),并对SK-OV-3,Bel-7402和在体内SK-OV-3细胞异种移植模型中,HepG2癌细胞系(IC50 = 2.39、5.45和4.60μM)以及肿瘤生长的抑制作用。进一步的研究表明,化合物11通过多种抗癌机制发挥了抗肿瘤作用,包括诱导凋亡和细胞周期停滞,DNA双链断裂的细胞蓄积,DNA修复改变,抑制H2O2触发的PARylation,通过产生细胞毒性活性氧而产生的抗增殖作用以及自噬。另外,化合物11显示出良好的药代动力学特性和良好的安全性。这些观察表明,化合物11可以用作发现新的抗癌药物的先导化合物。