天然产物研究与开发 ›› 2016, Vol. 28 ›› Issue (8): 1300-1304.doi: 10.16333/j.1001-6880.2016.8.023

• 开发研究 • 上一篇    下一篇

色胺酮卤代衍生物的合成、抗肿瘤活性及其与G-四链体DNA相互作用研究

顾运琼1,2,钟益宁3,申文英1,石铭燕1,谭明雄1,2*   

  1. 1 玉林师范学院 广西农产资源化学与深度利用重点实验室培育基地,玉林537000;2广西师范大学 药用资源化学与药物分子工程国家重点实验室培育基地,桂林541004;3广西中医药大学药学院,南宁530299
  • 出版日期:2016-08-30 发布日期:2017-01-17

Synthesis,Cytotoxicity and G-quadruplex DNA -Binding Effect of Tryptanthrin Halogenated Derivatives

GU Yun-qiong1,2,ZHONG Yi-ning3,SHEN Wen-ying1,SHI Ming-yan1,TAN Ming-xiong1,2*   

  1. 1T he Key Laboratory Cultivate Base of Guangxi for Agricultural Resources Chemistry and Efficient  Utilization,Yulin Normal University,Yulin 537000,China;2 The Key Laboratory for the Chemistry and  Molecular Engineering of Medicinal Resources,Guangxi Normal University,Guilin 541004,China;3College of Pharmacy of Guangxi University of Chinese Medicine,Nanning 530299,China
  • Online:2016-08-30 Published:2017-01-17

摘要: 色胺酮(Tryptanthrin,Try)是重要的天然吲哚喹唑啉类生物碱,本文首次合成了2,8-二溴色胺酮(Br-Try)及8-碘色胺酮(I-Try),并研究其抗肿瘤活性;以G四链体DNA为靶点研究其作用机制。化合物与BEL-7404、HepG2、NCI-H460、T-24等四种肿瘤细胞株的体外抗肿瘤活性和HL-7702正常肝细胞株的毒性实验表明,Br-Try和I-Try表现出比Try的抗肿瘤活性有不同程度的增强,而对正常细胞毒性减弱的结果。Br-Try对BEL-7404、NCI-H460和T-24肿瘤细胞株表现出比Try和顺铂更强的抗肿瘤活性,IC50值在7.08~9.68 μM,而I-Try只对HepG2细胞株表现了比Try和顺铂增强的抑制活性, IC50值为15.78±0.33 μM。初步的作用机制分析表明,三种化合物与G-四链体DNA有较强作用,以Br-Try最强。

关键词: 色胺酮, 卤代衍生物, 抗肿瘤活性, G4-DNA

Abstract: Tryptanthrin is a type of important natural quinazolineindole alkaloids.In this study,the synthesis,anti-tumor activities and G-quadruplex DNA binding effect of 2,8-dibromo-tryptanthrins (Br-Try),8-indo-tryptanthrin (I-Try) were investigated.The in vitro anti-tumor activities against 4 tumor cell lines BEL7404, HepG2,NCI-H460,T-24 and HL-7702 showed that both Br-Try and I-Try exhibited stronger anti-tumor activity than tryptanthrin and cis-platium against certain cell lines.Br-Try exhibited better activities than cis-platium and Try against BEL-7404,NCI-H460 and T-24 with IC50 values of 7.08-9.68 μM.While,I-Try only inhibited against HepG2 with IC50 value of 15.78±0.33 μM.Spectroscopic experiments showed that the three compounds had stabilizing effect on Gquadruplex HTG21 DNA,in which Br-Try showed the strongest effect.

Key words: tryptanthrin, halogenated derivatives, anti-tumor activity, G-quadruplex DNA

中图分类号: 

R73-74