当前位置: 首页 > 文章 > 钩吻素子对LPS诱导RAW264.7细胞炎症的作用 中国兽医学报 2017 (8) 1553-1557
Position: Home > Articles > Effect of koumine on the inflammation of RAW264.7 cells induced by LPS Chinese Journal of Veterinary Science 2017 (8) 1553-1557

钩吻素子对LPS诱导RAW264.7细胞炎症的作用

作  者:
袁志航;袁慧;邬静;陈小军;刘兆颖;孙志良
单  位:
湖南农业大学动物医学院;湖南兽药工程技术研究中心
关键词:
钩吻素子;脂多糖;炎症;巨噬细胞
摘  要:
为揭示钩吻素子的体外抗炎作用机理,利用硝酸还原酶法和ELISA法研究了不同质量浓度(100,200,400mg/L)的钩吻素子对一氧化氮(NO)和细胞因子白介素-1β(IL-1β)、白介素-6(IL-6)和肿瘤坏死因子-α(TNF-α)分泌的影响,运用了QPCR的方法检测了钩吻素子对诱导型一氧化氮合成酶(iNOS)、IL-1β、IL-6和TNF-αmRNA表达水平的影响,并运用Western blot法检测了钩吻素子对iNOS蛋白表达的影响。结果显示,100,200,400 mg/L质量浓度的钩吻素子能够极显著的抑制RAW264.7细胞NO的产生以及IL-1β、IL-6和TNF-α的分泌(P<0.01),同时能够剂量依赖性的降低iNOS、IL-1β、IL-6和TNF-α的mRNA水平,抑制脂多糖(LPS)引起的iNOS蛋白表达的升高(P<0.01)。由此推论,钩吻素子可能通过抑制炎症因子的分泌,减少NO的释放,下调iNOS、IL-1β、IL-6和TNF-α的mRNA水平,抑制iNOS蛋白过度表达达到其抗炎作用。
译  名:
Effect of koumine on the inflammation of RAW264.7 cells induced by LPS
作  者:
YUAN Zhi-hang;YUAN Hui;WU Jing;CHEN Xiao-jun;LIU Zhao-ying;SUN Zhi-liang;College of Veterinary Medicine,Hunan Agricultural University;Hunan Engineering Research Center of Veterinary Drugs;
关键词:
koumine;;lipopolysaccharide;;macrophagocyte;;inflammation
摘  要:
To reveal the anti-inflammation mechanism of koumine,we determined effects of different concentrations of koumine(100,200,400mg/L)on the secretion of NO,IL-1β,IL-6and TNF-αby nitrate reductase and ELISA as well as the mRNA of iNOS,IL-1β,IL-6and TNF-α.Western blot was used to detect iNOS protein expression.The results showed that 100,200,400 mg/L of koumine can significantly inhibit the secretion of NO,IL-1β,IL-6and TNF-αof RAW264.7cell(P<0.01).Koumine can dose-dependently down-regulate the mRNA of iNOS,IL-1β,IL-6and TNF-α,meanwhile koumine can also significantly inhibit the protein expression of iNOS.The results indicated that koumine may play an anti-inflammation activity by mean of the reduction of NO and mediator of inflammation,down-regulating the mRNA expression of iNOS,IL-1β,IL-6and TNF-α,decreasing protein expressions of iNOS.

相似文章

计量
文章访问数: 9
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊