Role of DNA adducts in hormonal carcinogenesis

被引：30
|
作者：
Liehr, JG [1 ]
机构：
[1] Stehlin Fdn Canc Res, Houston, TX 77003 USA
来源：
REGULATORY TOXICOLOGY AND PHARMACOLOGY | 2000年 / 32卷 / 03期
关键词：
D O I：
10.1006/rtph.2000.1432
中图分类号：
DF [法律]; D9 [法律]; R [医药、卫生];
学科分类号：
0301 ; 10 ;
摘要：
In this review, a mechanism of estrogen-induced cancer has been examined which features a dual role of estrogen as hormone and carcinogen. Evidence exists that estrogens are metabolically activated to 4-hydroxylated metabolites by a specific cytochrome P450 in tissues prone to estrogen-induced cancer. These metabolites and their semiquinone/quinone oxidation products may cause various types of DNA damage. Preliminary data also exist that estrogens induce various genetic mutations. Tumors may develop from cells carrying such mutations and responding to receptor-mediated proliferation signals. (C) 2000 Academic Press.
引用
收藏
页码：276 / 282
页数：7
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