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中国临床药理学与治疗学 ›› 2012, Vol. 17 ›› Issue (2): 171-174.

• 基础研究 • 上一篇    下一篇

蟛蜞菊内酯对脂多糖诱导RAW264.7细胞环氧化酶2、NO及TNF-α的影响

陈杰1, 李瑞明1, 许静2, 官碧琼2, 罗子玲2   

  1. 1中山大学附属第一医院药学部,广州 510008,广东;
    2南方医科大学第三附属医院药剂科, 广州 510630, 广东
  • 收稿日期:2011-12-07 修回日期:2012-01-17 出版日期:2012-02-26 发布日期:2012-03-12
  • 通讯作者: 许静,主管药师,主要从事临床药学工作。E-mail: hsujing77@163.com
  • 作者简介:陈杰,主管药师,主要从事临床药学工作。E-mail: chenjiezs@163.com
  • 基金资助:
    广东省自然科学基金(8451008901000788);广东省医学科研基金(A2009163)

Effect of Wedelolactone on COX-2, NO and TNF-α expression in lipopolysaccharide induced RAW264.7 cells

CHEN Jie1, LI Rui-ming1, XU Jing2, GUAN Bi-qiong2, LUO Zi-ling2   

  1. 1Department of Pharmacy, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong, China;
    2Department of Pharmacy, the Third Affiliated Hospital , Southern Medical University, Guangzhou 510630, Guangdong, China
  • Received:2011-12-07 Revised:2012-01-17 Online:2012-02-26 Published:2012-03-12

摘要: 目的: 研究蟛蜞菊内酯对脂多糖(lipopolysaccharide,LPS)诱导RAW264.7巨噬细胞环氧化酶2(COX-2)、NO及TNF-α的作用。方法: ELISA方法检测 0.2、2、20 μmol/L 不同浓度蟛蜞菊内酯对终浓度为10 μg/mL LPS诱导RAW264.7细胞产生TNF-α、NO及前列腺素E2(PGE2)的影响,Western blot方法检测蟛蜞菊内酯对LPS诱导COX-2 酶蛋白表达的影响。结果: LPS能够明显诱导小鼠RAW264.7细胞产生的COX-2酶蛋白,蟛蜞菊内酯低中高3个浓度均能抑制LPS诱导产生的COX-2酶蛋白表达。PGE2可以被 LPS诱导增加,与空白组比有显著差异。蟛蜞菊内酯低中高3个浓度均能抑制LPS诱导产生的PGE2、NO和TNF-α,呈现剂量依赖性。结论: 蟛蜞菊内酯抗炎的作用机制可能为抑制COX-2的蛋白表达,进而抑制PGE2的生成,也可能与抑制NO和TNF-α生成有关。

关键词: 蟛蜞菊内酯, 脂多糖, 细胞培养

Abstract: AIM: To study effect of Wedelolactone on COX-2, NO and TNF-α expression in lipopolysaccharide (LPS) induced RAW264.7 cells.METHODS: The contents of PGE2, TNF-α, NO were detected by ELISA methods, expression of COX-2 protein in RAW264.7 cells was measured by MTT assay, in the presence or absence of 10 μg/mL lipopolysaccharide (LPS) or Wedelolactone (0.2, 2, 20 μmol/L).RESULTS: The expression of COX-2 protein was significantly induced by LPS, Wedelolactone inhibited the expression of COX-2 protein significantly elicited by LPS in RAW264.7 cells; LPS-induced PGE2, TNF-α, NO was significantly inhibited by Wedelolactone in RAW264.7 cells, in dose dependent manners.CONCLUSION: The anti-inflammatory mechanisms of TGA may suppress production of PGE2 through inhibiting COX-2 gene expression, and inhibit activity of NO and TNF-α.

Key words: Wedelolactone, Lipopolysaccharide, Cell culture

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