Correlation of redox potentials and inhibitory effects on Epstein-Barr virus activation of 2-azaanthraquinones

被引:24
作者
Koyama, J [1 ]
Morita, I
Kobayashi, N
Osakai, T
Hotta, H
Takayasu, J
Nishino, H
Tokuda, H
机构
[1] Kobe Pharmaceut Univ, Fac Pharmaceut Sci, Kobe, Hyogo 6588558, Japan
[2] Kobe Univ, Fac Sci, Dept Chem, Kobe, Hyogo 6578501, Japan
[3] Kyoto Prefectural Univ Med, Dept Biochem, Kyoto 6028566, Japan
关键词
Epstein-Barr virus; 2-azaanthraquinone; redox potential; cyclic voltammetry;
D O I
10.1016/j.canlet.2004.03.005
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
As a continuation of our studies using natural and synthetic products as cancer chemopreventive agents, we examined the standard redox potentials of some 2-azaanthraquinones in phosphate buffer at pH 7.2 by means of cyclic voltammetry. A definite correlation has been found between the redox potentials and the inhibitory effects of the 2-azaanthraquinones on Epstein-Barr virus early antigen (EBV-EA) activation. It has been further shown that the correlation can be enhanced by introducing an electronic-properties, i.e. the atomic charges at the C-5 and O-12 atoms in the quinone skeleton ring and the HOMO energy as additional parameters. (C) 2004 Elsevier Ireland Ltd. All rights reserved.
引用
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页码:1 / 6
页数:6
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