摘要
目的和方法 :用细胞免疫荧光染色和激光共聚焦显微镜扫描技术 ,研究脂多糖 (LPS)对人脐静脉内皮细胞(HUVEC)细胞间粘附分子 - 1(ICAM - 1)表达的诱导作用 ,以及虎杖甙对ICAM - 1表达的抑制作用。结果 :内皮细胞未受LPS剌激时 ,细胞表面ICAM - 1表达很弱 ;LPS剌激后 ,细胞表面ICAM - 1分子在第 8- 36h显著增加 ,并与ICAM - 1的表达呈剂量反应关系。虎杖甙单独处理内皮细胞时 ,对ICAM - 1表达无明显影响 ;但虎杖甙预处理内皮细胞后 ,可显著抑制LPS对ICAM - 1表达的诱导作用。结论 :LPS可促进内皮细胞ICAM - 1的表达 。
AIM and METHODS: To investigate expression of intercellular adhesion molecule-1(ICAM-1) on human umbilical vein endothelial cells (HUVEC) induced by lipopolysaccharide (LPS) , and inhibiting role of polydatin by cellular immune fluorescent staining and laser confocal microscope scanning technology. RESULTS: Compared with basic expression of ICAM-1 on HUVEC, the ICAM-1 expression was enhanced significantly after stimulated by LPS from 8 h to 36 h, dose-dependent relation appeared between expression of ICAM-1 and LPS. ICAM-1 expression on endothelial cells treated only by polydatin had no abvious change,but inducing role of LPS to expression of ICAM-1 was inhibited significantly by polydatin pretreating endothelial cells. CONCLUSION: The expression of ICAM-1 on endothelial cells can be promoted by LPS , and polydatin can inhibit LPS-induced ICAM-1 expression
出处
《中国病理生理杂志》
CAS
CSCD
北大核心
2001年第9期855-857,共3页
Chinese Journal of Pathophysiology
基金
国家自然科学基金重点资助项目 (No.39830 40 0 )
