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替罗非班对人脐静脉内皮细胞血凝素样氧化低密度脂蛋白受体-1表达的影响 被引量:1

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摘要 目的观察替罗非班对人脐静脉内皮细胞(HUVECs)血凝素样氧化低密度脂蛋白受体-1(LOX-1)表达的影响。方法向培养的HUVECs中加入氧化型低密度脂蛋白(ox-LDL)80 mg/L共同孵育12 h,后加入固定浓度的替罗非班(替罗非班用量根据体重计算)分别作用12 h、24 h、36 h,逆转录-聚合酶链反应检测LOX-1mRNA表达,流式细胞仪间接免疫荧光法测定HUVECs LOX-1阳性细胞数。结果与对照组比较,ox-LDL组LOX-1mRNA的表达显著升高(P<0.05);替罗非班抑制HUVECs LOX-1mRNA的表达作用呈时间依赖性。与ox-LDL组比较,应用替罗非班后12 h、24 h、36 h LOX-1mRNA表达降低8%、64%和73%,差异有统计学意义(P<0.05)。与对照组比较,ox-LDL组HUVECs LOX-1阳性细胞数明显增加(P<0.05);固定浓度的替罗非班作用后HUVECs LOX-1阳性细胞数的表达量随替罗非班的作用时间延长而减低,其作用呈时间依赖性。结论替罗非班可显著抑制ox-LDL诱导的HUVECs LOX-1表达,可通过抑制ox-LDL诱导的HUVECs LOX-1表达从而发挥其血管内皮细胞保护效应。
出处 《中西医结合心脑血管病杂志》 2018年第9期1190-1192,共3页 Chinese Journal of Integrative Medicine on Cardio-Cerebrovascular Disease
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