Chemoprotection by inducers of electrophile detoxication enzymes.

Chemoprotection by inducers of electrophile detoxication enzymes.
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亲电子解毒酶诱导剂的化学保护。

DOI:
10.1007/978-1-4615-2984-2_12
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发表时间:
1993
期刊:
Basic life sciences
影响因子:
--
通讯作者:
Talalay,P
Talalay,P
中科院分区:
--
文献类型:
--
作者:
Kensler,TW;Davidson,NE;Groopman,JD;Roebuck,BD;Prochaska,HJ;Talalay,P

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存在许多潜在的化学保护措施来对抗致癌作用。癌变的多个阶段,包括起始、促进和进展,可以作为不同类型干预的靶点[见Wattenberg(32); De植物群和Ramel(10)的综述]。然而,在大多数实验系统中,通过在暴露于致癌物之前和/或同时施用化学保护剂来实现保护。鉴于抗癌剂和致癌剂给药之间的时间关系,这些药物似乎主要通过影响致癌剂的代谢和处置来发挥作用,从而改变致癌作用开始的关键事件。使用这种实验方法,它已经有可能文件保护对各种各样的化学致癌物作用在许多不同的靶器官部位。调节致癌物代谢过程的化学保护剂的重要类别包括酚类抗氧化剂、吲哚、有机异硫氰酸酯、香豆素、黄酮、烯丙基硫化物、二硫代氨基甲酸酯和二硫代硫醚。
Many potential strategies exist for chemical protection against carcinogenesis. Multiple stages of carcinogenesis, including initiation, promotion, and progression, can serve as targets for different types of interventions [see reviews by Wattenberg (32); De Flora and Ramel (10)]. However, in the majority of experimental systems, protection has been achieved by administering the chemoprotective agent prior to and/or concurrent with the exposure to carcinogen. Given this temporal relationship between administration of anticarcinogen and carcinogen, it seems likely that these agents act principally by affecting the metabolism and disposition of carcinogens, thereby altering events critical to the initiation of carcinogenesis. Using this experimental approach, it has been possible to document protection against a diverse array of chemical carcinogens acting at many different target organ sites. Important classes of chemoprotectors that modulate the metabolic processing of carcinogens include phenolic antioxidants, indoles, organic isothiocyanates, coumarins, flavones, allyl sulfides, dithiocarbamates, and dithiolethiones.
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