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中国临床药理学与治疗学 ›› 2012, Vol. 17 ›› Issue (11): 1201-1205.

• 基础研究 •    下一篇

棕榈酸对C2C12细胞Toll样受体及其炎症因子表达的影响

赵保胜1, 刘洋2, 高晓燕1, 邬瑞光2, 桂海水2, 朱寅荻2, 徐暾海2   

  1. 1北京中医药大学科研实验中心,北京 100029;
    2北京中医药大学中药学院,北京 100102
  • 收稿日期:2012-05-03 修回日期:2012-09-06 发布日期:2012-12-04
  • 通讯作者: 徐暾海,通信作者,男,博士后,教授,研究方向:中药活性成分及质量控制研究。Tel: 010-84738628 E-mail: thxu@yahoo.com
  • 作者简介:赵保胜,男,博士,副研究员,研究方向:中药药效与物质基础研究。Tel: 010-64286291 E-mail: zhaobs1973@163.com
  • 基金资助:
    国家国际科技合作计划资助项目(2010DFB33260); 北京中医药大学自主选题资助项目(2010ZYBZZ-JS083); 北京中医药大学创新团队项目(2011-CXTD-19)

The influence of palmitic acid to TLRs and inflammatory factors of C2C12 cell line

ZHAO Bao-sheng1, LIU Yang2, GAO Xiao-yan1, WU Rui-guang2, GUI Hai-shui2, ZHU Yin-di2, XU Tun-hai2   

  1. 1Center of Scientific Experiment, Beijing University of Chinese Medicine, Beijing 100029, China;
    2School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
  • Received:2012-05-03 Revised:2012-09-06 Published:2012-12-04

摘要: 目的: 探讨棕榈酸(PA)刺激对C2C12细胞Toll样受体(TLRs)及其炎症因子表达的影响,初步分析TLRs介导的免疫性炎症与胰岛素抵抗(IR)的关系。方法: 不同浓度PA与C2C12细胞体外共培养 16 h,测定细胞葡萄糖消耗量以确定IR细胞模型成型情况。荧光定量PCR法测定IR细胞TLR1~5 mRNA表达情况,ELISA法测定细胞培养液中炎症因子TNF-α、IFN-β的含量。结果: PA刺激能明显降低C2C12细胞的葡萄糖消耗量,表现为IR。PA并可诱导C2C12细胞TLR2、TLR4 mRNA 高表达,使TNF-α、IFN-β分泌增加,而对TLR1、TLR3、TLR5 mRNA表达无明显影响。结论: TLR2、TLR4信号转导通路及其启动的炎症反应可能参与了PA诱导IR形成的病理过程。

关键词: 棕榈酸, 胰岛素抵抗, Toll样受体, TNF-α, IFN-β

Abstract: AIM: To discuss the influence of palmitic acid to TLRs and inflammatory factors of C2C12 cells, and analyze the relationship between insulin resistance (IR) and immuno-inflammation induced by TLRs. METHODS: Palmitic acid in different concentration was co-cultured with C2C12 cells for 16 hours, after that, the consumption of glucose was analyzed to estimate the cell model of IR, TLR1-5 mRNA was observed with real-time PCR and the contents of TNF-α and IFN-β were measured with ELISA method. RESULTS: Palmitic acid decreased the glucose consumption of cells, showed IR character. It also obviously induced the hyper-expression of TLR2,TLR4 mRNA and increased the amount of TNF-α and IFN-β, but had no influence to that of TLR1, TLR3 and TLR5 mRNA.CONCLUSION: Palmitic acid stimulation induced the formation of IR, this may due to the hyper-expression of TLR2, TLR4 and the inflammation which was induced by TLRs and their signaling transdution pathway..

Key words: Palmitic acid, Insulin resistance, Toll-like receptor, TNF-α, IFN-β

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