彭珊瑛 廖文辉 聂珍贵 刘 洋 王 霖 王 凤 王文杰. 银杏内酯B对星形胶质细胞释放NO、IL-6及趋化因子RANTES的影响J. 药学学报, 2010,45(9): 1103-1108.
引用本文: 彭珊瑛 廖文辉 聂珍贵 刘 洋 王 霖 王 凤 王文杰. 银杏内酯B对星形胶质细胞释放NO、IL-6及趋化因子RANTES的影响J. 药学学报, 2010,45(9): 1103-1108.
BANG Shan-Ying, Liao-Wen-Hui, Nie-Zhen-Gui, Liu- Xiang, Wang- Lin, Wang- Feng, Wang-Wen-Jie. Effect of ginkgolide B on the production of NO, IL-6 and RANTES from astrocytesJ. 药学学报, 2010,45(9): 1103-1108.
Citation: BANG Shan-Ying, Liao-Wen-Hui, Nie-Zhen-Gui, Liu- Xiang, Wang- Lin, Wang- Feng, Wang-Wen-Jie. Effect of ginkgolide B on the production of NO, IL-6 and RANTES from astrocytesJ. 药学学报, 2010,45(9): 1103-1108.

银杏内酯B对星形胶质细胞释放NO、IL-6及趋化因子RANTES的影响

Effect of ginkgolide B on the production of NO, IL-6 and RANTES from astrocytes

  • 摘要:

    考察银杏内酯B对星形胶质细胞释放NOIL-6及趋化因子RANTES的影响, 探讨在炎性刺激条件下, 银杏内酯B对星形胶质细胞的保护作用机制。采用Griess试剂检测培养上清液中NO的含量, ELISA法测定IL-6RANTES的含量, RT-PCR法测定IL-6RANTES mRNA的表达。结果显示, LPS可显著刺激大鼠原代星形胶质细胞释放NO, 银杏内酯B可显著抑制LPS刺激的NO释放; IL-1β可显著刺激U251星形胶质瘤细胞 IL-6RANTES的生成, 并增加其mRNA的表达, 银杏内酯B可明显抑制IL-1β诱导的IL-6RANTES的生成, 并可显著抑制IL-1βRANTES mRNA的表达。因此, 银杏内酯B可能是通过减少NO的生成, 降低星形胶质细胞炎症因子IL-6 mRNA和细胞趋化因子RANTES mRNA的表达, 从而减少IL-6RANTES的产生, 减轻炎症反应的程度。结果表明, 银杏内酯B可能通过降低AD发病和进展过程中的与星形胶质细胞相关的慢性炎症反应, 从而缓解AD症状。

     

    Abstract:

    This study is to explore the effect of ginkgolide B (BN52021) on the production of nitric oxide (NO), interleukin (IL)-6 and regulated upon activation normal T cell expressed and secreted (RANTES) from  astrocytes induced by stimulators.  Primary cultured rat astrocytes were stimulated with lipopolysaccharides (LPS), the production of NO was assayed using Griess reaction; U251 cells were stimulated with IL-1β, the  contents of IL-6 and RANTES in the supernatant were measured using ELISA.  The mRNA expressions of IL-6 and RANTES were detected using RT-PCR.  LPS (10 ng·mL−1 to 10 μg·mL−1) could stimulate rat astrocytes to produce NO in a dose-dependent manner.  Ginkgolide B at the concentrations of 0.1−10 mmol·L−1 were shown to decrease NO production significantly.  IL-1β could induce the mRNA expression and protein secretion of IL-6 from U251 cells, as well as RANTES.  Ginkgolide B at concentrations of 0.1−10 mmol·L−1 were shown to inhibit RANTES secretion, and to inhibit mRNA expression of IL-6 and RANTES at concentration of 10 mmol·L−1.  Ginkgolide B has inhibitory effect on the production of NO, IL-6 and RANTES from astrocytes treated with inflammatory stimulators.

     

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