高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (3): 437.

• 综合评述 • 上一篇    下一篇

铜配合物促进的DNA氧化断裂

孙辉,余臻,杨玮琪,何卫江,郭子建   

  1. 南京大学化学化工学院, 配位化学国家重点实验室, 南京 210093
  • 收稿日期:2010-11-22 修回日期:2011-01-05 出版日期:2011-03-10 发布日期:2011-02-23
  • 通讯作者: 何卫江;郭子建 E-mail:heweij69@nju.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 20871066, 10979019, 21021062)和江苏省自然科学基金(批准号: BK2008015, BK2009229)资助.

Oxidative DNA Cleavage Mediated by Copper Complexes

SUN Hui, YU Zhen, YANG Wei-Qi, HE Wei-Jiang*, GUO Zi-Jian*   

  1. State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
  • Received:2010-11-22 Revised:2011-01-05 Online:2011-03-10 Published:2011-02-23
  • Contact: HE Wei-Jiang;GUO Zi-Jian E-mail:heweij69@nju.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20871066, 10979019, 21021062)和江苏省自然科学基金(批准号: BK2008015, BK2009229)资助.

摘要: 本文首先对铜配合物催化DNA氧化断裂的机制及相关因素包括DNA结合能力与方式、活性氧物种形成和活性氧物种对底物的损伤展开了讨论;其次结合我们课题组的工作对配合物的结构对其DNA切割性能的影响分别进行了总结,分别探讨了核数、核的种类、位阻、电荷、结合方式以及氧化还原电位等因素的影响;同时还对光激发铜配合物断裂DNA的机制和性能进行分析;最后对特异性含铜DNA断裂试剂的不同设计策略及其相关切割行为进行的系统地总结. 这些总结不仅有利于对铜配合物促进DNA 断裂行为的系统理解,而且对于进一步设计高效含铜人工核酸酶实现DNA的特异性断裂具有良好的指导意义.

关键词: 铜, DNA, 氧化切割, 特异性, 光切割

Abstract: In this review, the mechanism of the oxidative DNA cleavage promoted by copper complexes was discussed at first according to the DNA binding ability/mode, the reactive oxygen species (ROS) formation and the subsequent ROS-induced DNA damage. Combined with our works in this field, the complex nuclear number,metal centers,steric effect,charge,redox potential were investigated to clarify the the structral effects of copper complexes on their DNA cleaving behavior.In addition, the photo-induced DNA cleavage by copper complexes has also been surveied briefly. Finally, the different strategies for the specific DNA cleavage mediated by copper complexes were reviewed. All these should be helpful for the future design of copper-containing artificial nuclease of higher efficiency and specificity.

Key words: copper, DNA, oxidative cleavage, specificity, photo-induced cleavage

TrendMD: