没食子酸抑制人神经母细胞瘤增殖作用的实验研究

被引:17
作者
何文飞
何大维
马超
赵丹
张永波
卞则栋
机构
[1] 重庆医科大学附属儿童医院泌尿外科儿童发育疾病研究省部共建教育部重点实验室
关键词
没食子酸; 人神经母细胞瘤; 肿瘤增殖指数; 环磷酰胺;
D O I
10.16016/j.1000-5404.2011.02.002
中图分类号
R285.5 [中药实验药理];
学科分类号
1008 ;
摘要
目的研究没食子酸抑制小鼠模型中人神经母细胞瘤增殖的作用以及对化疗药物的协同作用。方法建立人神经母细胞瘤SK-N-SH细胞株免疫活性C57BL/6j小鼠移植瘤模型,随机分配成4组,每组10只:①PBS荷瘤对照组,按PBS0.5ml/只,腹腔注射,作为阴性对照;②没食子酸组,按250mg/kg,1次/2d给药,连续2周;③环磷酰胺组,按75mg/kg给药,每周2次,连续2周,作为阳性对照;④没食子酸+环磷酰胺组,没食子酸在环磷酰胺给药前24h给药,没食子酸与环磷酰胺独立给药,剂量和时间同前。药物均9:00腹腔注射给药,每周监测相对肿瘤体积(RTV),治疗时间共2周,次日处死小鼠,称体质量和瘤质量(Wt)、计算抑瘤率(IR),BrdU标记检测移植瘤细胞增殖。结果没食子酸组、环磷酰胺组、没食子酸+环磷酰胺组在2周的移植瘤瘤质量分别为(4559.0±677.7)、(2117.0±749.6)、(637.7±319.6)mg,平均抑瘤率分别为36.94%、70.72%、91.18%,与PBS组比较差异有显著性(P<0.01),没食子酸+环磷酰胺组瘤质量与环磷酰胺组比较差异有显著性(P<0.01)。各给药组肿瘤增殖指数分别为0.1229±0.0219、0.1076±0.0156、0.0413±0.0130,与PBS组肿瘤增殖指数(0.2308±0.0759)比较差异有显著性(P<0.01),同时没食子酸+环磷酰胺组与没食子酸组或环磷酰胺组比较差异有显著性(P<0.01)。结论没食子酸具有抑制人神经母细胞移植瘤增殖、协同环磷酰胺抗肿瘤生长的作用。
引用
收藏
页码:107 / 110
页数:4
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