麦冬不同提取物对过氧化氢损伤人血管内皮细胞ICAM-1、VEGF、Bcl-2表达的影响

被引:10
作者
戴晓明
蒋凤荣
张旭
戴建国
程雪琴
江沛
机构
[1] 南京中医药大学基础医学院
关键词
麦冬; 血管内皮细胞; ICAM-1; VEGF; Bcl-2;
D O I
10.13241/j.cnki.pmb.2008.12.039
中图分类号
R285.5 [中药实验药理];
学科分类号
1008 ;
摘要
目的:观察麦冬不同提取物对过氧化氢诱导的人脐静脉内皮细胞(HUVEC)间黏附分子-1(ICAM-1)和VEGF、Bc(?)-2表达的影响。方法:体外培养HUVEC,用过氧化氢(H2O2)制造HUVEC损伤模型。以四甲基偶氮唑蓝(MTT)比色法检测细胞存活数量,用流式细胞仪检测HUVEC表面ICAM-1的表达量;免疫细胞化学方法检测HUVEC的VEGF、Bc(?)-2的分布情况。结果:模型组较正常对照组细胞增殖活性明显降低(P<0.01)。与模型组相比,经麦冬水提物、正丁醇提取物处理组细胞增殖活性明显增加(P<0.05,P<0.01)。流式细胞仪检测显示正丁醇提取物可降低过氧化氢增加的ICAM-1基因的表达。Bc(?)-2的表达,模型组明显低于正常对照组,而正丁醇组表达明显高于模型组(P<0.01)。VEGF的表达,模型组明显高于正常对照组,麦冬水提物、正丁醇提取物处理组高于模型组(P<0.05,P<0.01)。结论:麦冬提取物具有抗凋亡、促增殖、降低细胞间黏附分子-1表达的作用,尤以正丁醇提取物效果更为显著。
引用
收藏
页码:2419 / 2422
页数:4
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