环氧合酶-2选择性抑制剂对大肠腺瘤细胞的作用机制

被引:6
作者
邱春华
欧阳钦
机构
[1] 华西医科大学附属第一医院消化内科,华西医科大学附属第一医院消化内科
关键词
肿瘤细胞,培养的; 大肠; NS398; 环氧合酶2;
D O I
暂无
中图分类号
R735.34 [];
学科分类号
100214 ;
摘要
目的 探索散发性大肠腺瘤细胞的原代培养 ;探讨环氧合酶 (COX) 2选择性抑制剂对大肠肿瘤防治的作用机制。方法 从人大肠腺瘤中分离培养上皮细胞 ;检测COX 2选择性抑制剂NS 398对细胞增殖的影响和大肠肿瘤中COX 2蛋白的表达。结果 取得大肠腺瘤 30枚 ,培养成功 2 3枚 ;NS 398对腺瘤细胞的抑制作用具有时间及剂量依存性 ;在大肠肿瘤中 ,COX 2蛋白表达显著增加 ,分别为 83 1%和 80 0 %。结论 避免污染、恰当的消化时间、合适的细胞数和成纤维细胞的去除 ,是大肠腺瘤细胞原代培养成功的关键 ;NS 398对细胞生长具有明显抑制作用 ;COX 2蛋白在大肠肿瘤形成的早期阶段出现表达增强
引用
收藏
页码:20 / 23+76
页数:5
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