药物敏感基因疗法是近年来兴起的颇有开发应用价值的1种肿瘤治疗手段。所谓肿瘤的药物敏感基因治疗是指经某种途径将该基因导入肿瘤细胞后,其在肿瘤细胞内特异表达,使肿瘤细胞分泌的酶在细胞内将无毒性的药物前体转变成毒性产物,抑制肿瘤细胞的ＤＮＡ合成,从而导致肿瘤细胞死亡 Drug-sensitive gene therapy is a kind of tumor treatment that has been developed and applied in recent years. The so-called tumor drug-sensitive gene therapy refers to the way the gene is introduced into the tumor cells, the specific expression in the tumor cells, so that the secretion of tumor cells in the cell enzyme will be non-toxic precursor into toxic products, Inhibit tumor cell DNA synthesis, resulting in tumor cell death