外源性p16基因与放疗联合治疗喉鳞癌的实验研究

被引:4
作者
付艳军
刘世喜
鲜均明
机构
[1] 四川大学华西医院耳鼻咽喉科,四川大学华西医院耳鼻咽喉科,四川大学华西医院耳鼻咽喉科成都,成都,成都
关键词
p16基因; 放疗; 喉鳞癌; 基因治疗;
D O I
暂无
中图分类号
R739.62 [鼻、鼻窦肿瘤];
学科分类号
100214 ;
摘要
目的 探讨外源性 p16基因对人喉鳞状细胞癌的抑制作用及与放射治疗联合应用的协同增敏作用。方法 应用携带 p16基因的复制缺陷型腺病毒 (Ad- p16 )转染人喉鳞癌细胞株 ,用 Western Blot方法检测 p16基因在喉鳞癌细胞中的表达 ,体外、体内实验观察 p16基因治疗和放射治疗对喉癌细胞的生长抑制作用。结果 复制缺陷型腺病毒载体可有效地将外源性 p16基因转染入人喉鳞癌细胞株中并使其表达 P16蛋白 ;体外、体内抑瘤实验表明 :Ad- p16基因治疗组、单纯放疗组和 Ad- p16基因与放疗联合治疗组肿瘤生长均明显受抑制 ,疗效显著优于携带 L ac Z基因的重组腺病毒 (Ad- L ac Z)组和 PBS对照组 (P<0 .0 5 ) ,其中联合治疗组肿瘤生长最为缓慢 ,与 Ad- p16基因治疗组和单纯放疗组比较均有显著性差异 (P<0 .0 5 )。结论  p16基因可有效地抑制人喉鳞癌细胞生长 ,与放射治疗联合应用具有相加和协同效应
引用
收藏
页码:209 / 211
页数:3
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