• 心血管疾病研究 • 上一篇    下一篇

血小板微颗粒对人脐静脉内皮细胞粘附因子表达的影响

丛洪良   

  1. 天津胸科医院
  • 收稿日期:2010-10-13 修回日期:2010-10-21 出版日期:2011-01-15 发布日期:2011-01-15
  • 通讯作者: 丛洪良

Effect of platelet micropartiles on the expression of cell adhesion moleculein in cultured human umbilical endothelial cells

  • Received:2010-10-13 Revised:2010-10-21 Published:2011-01-15 Online:2011-01-15

摘要: 目的:探讨血小板微颗粒对人脐静脉内皮细胞粘附因子E-selectin、ICAM-1、VCAM-1表达的影响,以揭示血小板微颗粒在冠心病中的可能作用机制。方法:分离制备血小板微颗粒,与人脐静脉内皮细胞CRL-1730共培养,应用半定量逆转录聚合酶链反应技术测定不同浓度血小板微颗粒作用不同时间,内皮细胞粘附因子E-selectin、ICAM-1、VCAM-1的表达。结果:当PMPS达到一定浓度,可促使内皮细胞(CRL-1730)表达E-selectin、ICAM-1和VCAM-1升高,差异有统计学意义(p<0.05);而PMPs刺激内皮细胞(CRL-1730)不同时间,E-selectin、ICAM-1的表达无差异(p>0.05)。结论: PMPs可促使体外培养的人脐静脉内皮细胞(CRL-1730)表达E-selectin、ICAM-1和VCAM-1升高,从而从一方面解释了PMPs在冠心病中的可能的作用机制。

关键词: 血小板微颗粒, 内皮细胞, 粘附分子, 冠状动脉粥样硬化, 缺血再灌注损伤

Abstract: Abstract objective: To examine the expressions of cell adhesion molecule(E-selectin.VCAM-1.ICAM-1) in HUVECs(CRL-1730),which is affected by platelet microparticles(PMPs).To investigate the effects of platelet microparticles in coronary heart disease.Methods: HUVECs(CRL-1730) and prepared PMPs were co-cultured.Reverse transcription-polymerase chain reaction(SQRT-PCR) was used to detect the relative expressions of E-selectin、 I CAM-1 and VCAM-1 in endothelial cells respectively.Results: The expressed levels of E-selectin、ICAM-1和VCAM-1 were increased when HUVEC(CRL-1730) were interfered by PMPs of centain concentration(p<0.05).But the PMPs stimulated HUVECs(CRL-1730) at different times,the expressions of E-selectin、ICAM-1and VCAM-1 were of no diffeence(p>0.05).Conclusions: The PMPs may increase the expressions of E-selectin、ICAM-1and VCAM-1 on HUVEC(CRL-1730).It may explain a possible mechanism of PMPs in coronary heart disease.

Key words: platelet microparticles, human umbilical vein endothelial cell, adhesion molecule, atherosclerosis, ischemia –reperfusion injury