西红花酸对RAW264.7巨噬细胞TLR4/NF-κB信号通路的抑制作用及机制探讨

被引：4

作者：

杨如会

刘并进

机构：

[1] 丽水学院医学院

来源：

山东医药 | 2015年 / 55卷 / 09期

关键词：

西红花酸; 巨噬细胞; Toll样受体; My D88;

D O I：

暂无

中图分类号：

R285 [中药药理学];

学科分类号：

1008 ;

摘要：

目的探讨西红花酸对RAW264.7巨噬细胞株TLR4/NF-κB信号通路的抑制作用及其机制。方法常规培养小鼠RAW264.7巨噬细胞,设计合成My D88 siRNA,用LPS刺激RAW264.7巨噬细胞,同时用西红花酸和My D88 siRNA进行干预。RT-PCR法测定RAW264.7巨噬细胞IL-6、TNF-α、i NOS、MCP-1和IFN-β水平,Western blotting法测定NF-κB/p65和p-JNK1/2的水平,ELISA法检测IL-6和TNF-α水平。结果西红花酸可以抑制LPS诱导的RAW264.7细胞IL-6、TNF-α、i NOS、MCP-1 mRNA的表达,下调p-JNK1/2和p65蛋白表达水平,降低IL-6、TNF-α的分泌水平;My D88 siRNA可以阻断西红花酸对LPS刺激RAW264.7巨噬细胞的作用,但西红花酸和My D88 siRNA对LPS刺激IFN-βmRNA表达的阻断作用不明显。结论西红花酸对RAW264.7巨噬细胞的TLR4/NF-κB信号通路的抑制作用可能通过My D88信号通路实现。

引用

页码：15 / 17

页数：3

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