Discovery of a Novel Series of Quinolone and Naphthyridine Derivatives as Potential Topoisomerase I Inhibitors by Scaffold Modification
作者:Qi-Dong You、Zhi-Yu Li、Chiung-Hua Huang、Qian Yang、Xiao-Jian Wang、Qing-Long Guo、Xiao-Guang Chen、Xun-Gui He、Tsai-Kun Li、Ji-Wang Chern
DOI:10.1021/jm900469e
日期:2009.9.24
A novel series of topoisomerase I (Top I) inhibitors were designed on the basis of camptothecin using scaffold modification strategy. Thirty-one new compounds were synthesized and evaluated for anticell proliferation activity. The most potent compound 26 presented a significant inhibitory effect on Top I, leading to Top I-mediated cleavage and influences on Top I expression at the cellular level. Moreover
在喜树碱的基础上,采用支架修饰策略设计了一系列新的拓扑异构酶I(前I)抑制剂。合成了三十一种新化合物并评估了其抗细胞增殖活性。最有效的化合物26对Top I表现出显着的抑制作用,导致Top I介导的裂解并在细胞水平上影响Top I的表达。此外,已证明26通过细胞凋亡和加速的DNA链断裂诱导细胞死亡,而细胞周期种群却没有明显改变。本文的所有实验结果均表明26可与DNA-Top I复合物相互作用并诱导癌细胞凋亡以产生抗肿瘤作用。在体内的评价26在裸鼠中HT-29肿瘤异种移植物的生长表明其进一步发展的治疗潜力。