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化学进展 2010, Vol. 22 Issue (05): 784-795 前一篇   后一篇

• 特约稿 •

4-硫脱氧胸苷及类似物在UVA光辅助治疗抗癌药物方面的研究

张晓辉1*; 王爱玲1; 李德鹏1; 徐耀忠2   

  1. (1. 大连大学环境与化学工程学院 大连 116622; 2. Department of Chemistry and Analytical Sciences, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK)
  • 收稿日期:2009-10-14 修回日期:2009-12-10 出版日期:2010-05-24 发布日期:2010-05-05
  • 通讯作者: 张晓辉 E-mail:xiaohui99@hotmail.co.uk

UVA Light-Assisted Anticancer Drugs---Study on 4-Thiothymidine & Its Analogues

Zhang Xiaohui1*; Wang Ailing1; Li Depeng1; Xu Yaozhong2   

  1. (1. College of Environment and Chemical Engineering, Dalian University, Dalian 116622, China; 2. Department of Chemistry and Analytical Sciences, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK)
  • Received:2009-10-14 Revised:2009-12-10 Online:2010-05-24 Published:2010-05-05
  • Contact: Zhang Xiaohui E-mail:xiaohui99@hotmail.co.uk

本文叙述了含硫碱基DNA的化学和医疗应用。硫碱基(Thio-base)有其独特的性质,比如,易烷基化,易氧化和强的紫外长波(400-315 nm,UVA)吸收。这些特定化学和物理性质存于含硫碱基、含硫核苷和含硫碱基DNA中,它们对制备修饰的DNA和对硫碱基的DNA与其它生物大分子之间进行光诱导的交联反应是非常有用的。功能化的含有硫碱基的DNA及其类似物可用于对DNA的修复的研究。本文也介绍和评述了利用紫外光/含硫脱氧胸(腺嘧啶脱氧核)苷(UVA/Thiothymidine)的抗癌疗法,同时,探讨了含硫核苷类似物和紫外线光之间的协同作用,为癌症和其它疾病治疗提供一种新的方法。

The article reviews the chemical methods for the preparation of DNA containing 4-thiothymine(base). 4-Thiothymine(base) has several unique properties, such as easy alkylation, ready oxidation and strong absorption in UVA region. These chemical and physical properties are retained at its nucleoside and DNA levels and particularly useful for chemical manipulation and photo crossing of the thiothymine(base) DNA with other biomolecules of interest. The ability to make DNA containing thiothymine(base) or their functionalized analogues is also useful for studying DNA repairs. UVA/Thiothymidine anti-cancer therapy is also introduced and discussed. The synergetic exploration of sulfur-containing nucleoside analogues and ultraviolet light could provide a new way for treatment of cancer.

Contents
1 Introduction
2 An overview of photodynamic therapy (PDT)
3 Thiothymidine & analogues as potential UVA light-assisted anticancer drugs
4 Chemical synthesis of base-modified DNA
4.1 Conventional synthetic approach
4.2 Post-synthetic functionalization
4.3 Combined approach
5 Synthetic chemistry of DNA containing 4-thiothymine(base)
5.1 Preparation of 4-thiothymidine
5.2 Preparation of phosphoramidite of 4-thiothymidine and its incorporation in DNA synthesis
5.3 Purification
5.4 Composition analysis
6 Chemical and physical properties of thiothymine in DNA
6.1 Direct alkylation
6.2 Photochemistry
6.3 UV absorption and application of 4-thiothymidine
7 DNA containing 4-thiothymine(base) used for cancer studies
7.1 The role of ultraviolet light-induced activation as a novel cancer therapy
7.2 Exploration of 4-thiothymidine & analogues (5-Br-4-thiodU) as potential prodrugs
8 Conclusion and outlook

中图分类号: 

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