Synthesis and biological evaluation of NQO1-activated prodrugs of podophyllotoxin as antitumor agents
作者:Yan Qu、Chong Zhang、Xin Ma、Yunhui Gao、Jing Liu、Liqiang Wu
DOI:10.1016/j.bmc.2020.115821
日期:2020.12
Podophyllotoxin (PPT), a toxic polyphenol derived from the roots of genus Podophyllum, had been reported with strong inhibition on both normal human cells and tumor cells, which hindered the development of PPT as the candidate antitumor agent. In the present work, multiple NQO1-activatable PPT prodrugs were synthesized for reducing normal cell toxicity and keeping tumor cell toxicity. The antiproliferative
鬼臼毒素(PPT)是一种来自鬼臼属的根的有毒多酚,据报道对正常人细胞和肿瘤细胞均具有强烈的抑制作用,从而阻碍了PPT作为候选抗肿瘤药的发展。在本工作中,合成了多种可激活NQO1的PPT前药,以降低正常细胞毒性并保持肿瘤细胞毒性。与鬼臼毒素,前药1和2相比,前药3对过量表达NQO1,紫杉醇抗性A549,低氧A549和HepG2的肿瘤细胞具有极大的选择性毒性,并且对正常细胞的损伤较小。进一步的机理研究表明,前药3通过NQO1激活了SPAR,可有效地温和产生细胞毒性PPT单位并杀死肿瘤细胞。此外,体内研究显示3在HepG2异种移植模型中可显着抑制癌症的生长,而无明显毒性。因此,这种可激活NQO1的前药输送系统具有良好的生物安全性,并为药物输送系统的开发提供了新的策略。