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益肾活血提取液对oxLDL诱导的人脐静脉内皮细胞CD40、MMP-9及VCAM-1表达的影响

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摘要 目的观察益肾活血提取液对氧化型低密度脂蛋白(oxLDL)诱导的人脐静脉内皮细胞(HUVECs)CD40、基质金属蛋白酶-9(MMP-9)、血管细胞黏附分子-1(VCAM-1)表达的影响。方法原代培养HUVECs,取3~5代细胞用于试验,提取细胞RNA及蛋白。采用实时定量RT-PCR检测HUVECs VCAM-1 mRNA表达,采用W estern印迹法观察HUVECs CD40及MMP-9的蛋白表达变化。结果 刺激组CD40、MMP-9及VCAM-1的表达较空白组明显升高(1.48±0.34 vs 0.45±0.16;1.54±0.16 vs 0.62±0.12,12.82±0.16 vs 1.00±0.01,P均〈0.001),大、中、小剂量的益肾活血提取液可以不同程度地抑制oxLDL诱导的HUVECs、CD40、MMP-9及VCAM-1的高表达。结论益肾活血提取液具有改善内皮细胞功能的作用,其机制与抑制oxLDL诱导的HUVECs CD40、MMP-9及VCAM-1的高表达有关。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2010年第22期3284-3286,共3页 Chinese Journal of Gerontology
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