在环境肿瘤的化学预防方面,1966年,Wattenberg等最先做了许多开拓性的研究工作,近年来引起了许多人的重视,并已成为一个活跃的研究领域。本文试图就现有的国内外有关资料,来阐明化学防癌剂的作用机制,探讨环境肿瘤化学预防的途径。抑制肿瘤引发过程七十年代以来的研究表明,大多数致癌物为间接致癌物,在环境中相对稳定,进入机体后 In the aspect of chemical prevention of environmental tumors, in 1966, Wattenberg and others first made many pioneering research work. In recent years, it attracted the attention of many people and has become an active research field. This article attempts to clarify the mechanism of action of chemical anti-cancer agents and discuss the ways of environmental cancer chemical prevention based on existing domestic and foreign data. Inhibition of tumor initiation processes Since the 1970s, studies have shown that most carcinogens are indirect carcinogens and are relatively stable in the environment and enter the body.