氧化低密度脂蛋白(Ox-LDL)和白细胞介素-1β(IL-1β)处理可增加人肾小球系膜细胞中凝集素样氧化低密度脂蛋白受体-1(LOX-1)的表达。
Expression of LOX-1 in human mesangial cells is increased by Ox-LDL and IL-1β treatment.
作者信息
Deng Yinghui, Lin Na, Wu Leiyun, Jia Qaing, Liu Hua
机构信息
Department of Nephrology, Xuanwu Hospital, Capital Medical University, Beijing 100053, P.R. China.
出版信息
Exp Ther Med. 2017 Oct;14(4):3632-3636. doi: 10.3892/etm.2017.4950. Epub 2017 Aug 16.
The present study aimed to determine whether the expression of lectin-like oxidized LDL receptor 1 (LOX-1) could be induced by oxidized low-density lipoprotein (Ox-LDL) and interleukin 1β (IL-1β) in human mesangial cells (HMCs). Oil Red O staining was used to observe the uptake of Ox-LDL by HMCs stimulated with IL-1β, and reverse transcription-quantitative polymerase chain reaction analysis and western blotting were used to examine the expression of LOX-1 in HMC following Ox-LDL and IL-1β treatment. Uptake of Ox-LDL by HMCs was upregulated upon stimulation with IL-1β. Furthermore, Ox-LDL (10-40 µg/ml) treatment induced LOX-1 mRNA and protein expression in a dose-dependent manner. In addition, when HMCs were treated with IL-1β and Ox-LDL, the expression of LOX-1 was enhanced further. These results indicated that inhibiting LOX-1 expression or inhibiting the Ox-LDL/LOX-1 signaling axis may be a potential novel method for treating renal disease.
本研究旨在确定凝集素样氧化低密度脂蛋白受体1(LOX-1)的表达是否可由氧化低密度脂蛋白(Ox-LDL)和白细胞介素1β(IL-1β)在人系膜细胞(HMCs)中诱导产生。采用油红O染色观察IL-1β刺激的HMCs对Ox-LDL的摄取,并采用逆转录-定量聚合酶链反应分析和蛋白质印迹法检测Ox-LDL和IL-1β处理后HMC中LOX-1的表达。IL-1β刺激后,HMCs对Ox-LDL的摄取上调。此外,Ox-LDL(10 - 40μg/ml)处理以剂量依赖方式诱导LOX-1 mRNA和蛋白质表达。此外,当HMCs用IL-1β和Ox-LDL处理时,LOX-1的表达进一步增强。这些结果表明,抑制LOX-1表达或抑制Ox-LDL/LOX-1信号轴可能是治疗肾脏疾病的一种潜在新方法。