黄芪甲苷对脂多糖诱导的巨噬细胞炎症反应及核因子κB受体活化因子配体/骨保护素系统表达的影响

被引:11
作者
邵帅 [1 ]
鲁美丽 [2 ]
高秀秋 [1 ]
王洪新 [2 ]
机构
[1] 锦州医科大学附属第二医院牙周科
[2] 锦州医科大学药学院药理教研室
关键词
黄芪甲苷; 脂多糖; 炎症; 核因子κB受体活化因子配体; 骨保护素;
D O I
暂无
中图分类号
R285 [中药药理学];
学科分类号
100806 [中药药理学];
摘要
目的 探讨黄芪甲苷(AS-Ⅳ)对脂多糖(LPS)诱导的巨噬细胞RAW264.7炎症的保护作用及对核因子κB受体活化因子配体(RANKL)/骨保护素(OPG)系统表达的影响。方法 将LPS刺激的RAW264.7细胞作为模型组,CCK-8法检测细胞活力,ELISA法检测白细胞介素-1β (IL-1β)、白细胞介素-6 (IL-6)和肿瘤坏死因子-α (TNF-α)炎性细胞因子的表达,实时PCR法检测RANKL与OPG的mRNA表达,Western blotting法检测Toll样受体4 (TLR4)、磷酸化核因子κB抑制剂α (P-IκBα)、磷酸化核因子κB (P-NF-κB P65)、 RANKL和OPG蛋白的表达。结果 CCK-8法显示AS-Ⅳ药物浓度0~100μg/mL时,其细胞活力无统计学差异,在LPS的诱导下,50μg/mL、100μg/mL的AS-Ⅳ对细胞活性有明显的提高作用;AS-Ⅳ使炎性细胞因子水平显著降低,显著下调TLR4、P-IκBα和P-NF-κB P65蛋白的表达;同时AS-Ⅳ下调了RANKL蛋白与m RNA的表达,上调了OPG蛋白与m RNA的表达。结论 AS-Ⅳ可通过调节NF-κB信号通路抑制炎症作用,并下调RANKL蛋白与mRNA的表达,上调OPG蛋白与m RNA的表达,从而调控骨代谢。
引用
收藏
页码:294 / 300
页数:7
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