检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
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.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.195