新型非甾体抗炎药水杨酸甲酯糖苷抗神经小胶质细胞炎症作用的研究  被引量:4

The inhibitory effect of methyl salicylate 2-O-β-D-lactoside(MSL) on LPS-induced inflammation in BV-2 cells

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作  者:马晓玮 张天泰[1] 杜冠华[1] 

机构地区:[1]中国医学科学院北京协和医学院药物研究所,药物靶点研究与新药筛选北京市重点实验室,北京100050

出  处:《中国新药杂志》2014年第6期654-659,共6页Chinese Journal of New Drugs

基  金:国家"重大新药创制"科技重大专项(2009ZX09102-034);国家自然科学基金(81373388)

摘  要:目的:以脂多糖(LPS)刺激小神经胶质细胞BV-2,体外模拟神经退行性疾病的炎症模型,探讨新型非甾体抗炎药水杨酸甲酯糖苷(MSL)的抗炎作用。方法:采用LPS1μg·mL-1刺激小神经胶质细胞建立炎症模型,MTT法检测MSL对BV-2细胞的毒性作用;Griess法检测MSL对LPS刺激BV-2细胞一氧化氮(NO)释放量的影响;ELISA方法检测MSL对LPS刺激BV-2细胞产生炎性因子TNF-α,IL-6的影响;WesternBlot法检测MSL对LPS刺激BV-2细胞iNOS,COX-1,COX-2蛋白表达的影响。结果:MSL在0.1~100μmol·L-1浓度范围内对BV.2细胞没有细胞毒性。MSL(2,10,50μmol·L-1)能够剂量依赖性抑制LPS诱导的BV-2细胞NO,炎性因子IL-6的释放,对TNF-α也有一定的抑制作用。MSL(2,10,50μmol·L-1)能够不同程度地抑制iNOS,COX-1,COX-2蛋白的表达。结论:MSL能够抑制小神经胶质细胞炎性相关因子的产生,以及抑制COX-1/2的表达,发挥抗炎作用。Objective: To study the inhibitory effect of methyl salicylate 2-O-13-D-lactoside (MSL) on LPS-induced inflammation in BV-2 cells. Methods: BV-2 cells were treated with LPS 1 μg·mL-1 to establish in- flammation model; MTT assay was used to detect the viability of BV-2 cells ; nitric oxide (NO) was detected by the method of Griess reaction; ELISA was used to study the release of pro-inflammatory cytokines tumour necrosis fac- tor-α (TNF-α) and interleukin-6 (IL-6) ; protein expression of inducible nitric oxide synthase (iNOS) and COX- 1/2 were examined by Western Blotting analysis. Results: Our study showed that MSL did not affect cell viability in the range of 0.1 - 100 μmol L-l. MSL(2, 10, 50μmol-L-1 ) inhibited LPS-induced production of NO and pro- inflammatory cytokine IL-6 in a concentration-dependent manner. MSL also reduced LPS-induced release of TNF-α and expression of iNOS and COX-l/2 in BV-2 cells. Conclusion: This study indicates that MSL may exert anti- neuroinflammatory effect by inhibiting the production of inflammation-related factors and expression of COX-l/2 in activated microglia.

关 键 词:水杨酸甲酯糖苷 炎性因子 小神经胶质细胞 神经炎症 阿尔茨海默病 

分 类 号:R965.1[医药卫生—药理学] R975.5[医药卫生—药学]

 

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