Emergence of cancer relates not only to activation of oncogene, inactivation of anti-oncogene and metabolic enzyme gene, but also to DNA repair gene which plays an important role in stability of DNA.

• 摘要癌症的发生不但与癌基因激活、抑癌基因失活、代谢酶基因异常有关，与修复酶基因可能也有关系，因而也日益受到关注。