畜牧兽医学报 ›› 2015, Vol. 46 ›› Issue (12): 2299-2306.doi: 10.11843/j.issn.0366-6964.2015.12.023

• 临床兽医 • 上一篇    下一篇

丹翘液对脂多糖诱导RAW264.7细胞炎症相关因子的抑制效应分析

魏立琴1,2,王东升1,董书伟1,邝晓娇1,张世栋1*,严作廷1*   

  1. (1.中国农业科学院兰州畜牧与兽药研究所/农业部兽用药物创制重点实验室/甘肃省中兽药工程技术研究中心,兰州 730050;2.甘肃农业大学动物医学院,兰州 730070)
  • 收稿日期:2015-04-13 出版日期:2015-12-23 发布日期:2015-12-23
  • 通讯作者: 张世栋(1983-),主要从事药理毒理学研究,E-mail:zhangshidong@caas.cn,Tel:0931-2115262;严作廷(1962-),主要从事中兽医临床和奶牛疾病防治的研究,E-mail:yanzuoting@caas.cn,Tel:0931-2115261
  • 作者简介:魏立琴(1986-),女,甘肃兰州人,硕士,主要从事中兽医临床和奶牛疾病防治的研究,E-mail:24weiliqin@163.com,Tel:0931-2115262
  • 基金资助:

    “十二五”国家科技支撑计划项目(2012BAD12B03);中国农业科学院科技创新工程-奶牛疾病研究

Inhibiting Effect Analysis of Danqiao Liquid on Inflammation-related Factors Induced by LPS in RAW264.7 Cells

WEI Li-qin1,2,WANG Dong-sheng1,DONG Shu-wei1,KUANG Xiao-jiao1,ZHANG Shi-dong1* ,YAN Zuo-ting1*   

  1. (1.Lanzhou Institute of Husbandry and Pharmaceutical Science of CAAS/Key Laboratory of Veterinary Pharmaceutics Discovery,Ministry of Agriculture/Engineering & Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province,Lanzhou 730050,China;2.College of Veterinary Medicine,Gansu Agricultural University,Lanzhou 730070,China)
  • Received:2015-04-13 Online:2015-12-23 Published:2015-12-23

摘要:

为研究丹翘液的体外抗炎作用及其抗炎机制,利用LPS诱导巨噬细胞建立炎症模型,MTT法检测不同浓度丹翘液对RAW264.7细胞活力影响;NO测试盒检测丹翘液对LPS诱导的NO释放量的影响;ELISA方法检测丹翘液对LPS诱导的TNF-α、IL-6和PGE2分泌的影响;RT-PCR方法检测丹翘液对LPS诱导的TNF-α、IL-6、COX-2和iNOS基因转录的影响;Western blot检测对细胞核内NF-κB p65蛋白表达的影响。结果显示丹翘液小于700 μg•mL-1对细胞无毒性作用;丹翘液各剂量组(100、300、600 μg•mL-1)能不同程度地抑制LPS诱导的NO、PGE2、TNF-α和IL-6的分泌;能显著抑制iNOS、COX-2、TNF-α和IL-6基因转录和细胞核内 NF-κB p65蛋白表达。丹翘液的抗炎作用机制可能与抑制NF-κB 通路激活,进而抑制炎症介质和炎性细胞因子的转录和表达有关。

Abstract:

The aim of the present study was to study the anti-inflammatory effects and possible underlying mechanisms of Danqiao liquid in LPS-stimulated RAW264.7 cells.The cytotoxicity of Danqiao liquid was detected by MTT method.The NO kit assay was adopted to detect the effect of Danqiao liquid on NO release from LPS-induced RAW264.7 cells.ELISA was used to evaluate the production of TNF-α,IL-6 and PGE2 in LPS-induced RAW264.7 cells.Real-time PCR was used to detect the transcription of COX-2,iNOS,TNF-α and IL-6 in LPS-induced RAW264.7 cells.The protein expression of nuclear NF-κB p65 was detected by Western blot.The result showed that the safe medication range of Danqiao liquid was less than 700 μg•mL-1.Compared with the LPS model group,Danqiao liquid(100,300,600 μg•mL-1) could reduce the secretion of NO,PGE2,TNF-α,and IL-6 in cells induced by LPS,and significantly inhibit the mRNA transcription of iNOS,COX-2,TNF-α,IL-6 and the protein expression of NF-κB p65.In conclusion,this study preliminarily proves the protective effect of Danqiao liquid on LPS-induced RAW264.7 macrophages.Its action mechanism may be related to inhibit NF-κB signal pathway and the genes expressions and secretion of inflammatory mediators and cytokines.

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