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·药学研究·

        基于TLR4/MyD88/NF-κB信号通路研究黄连素对小鼠巨噬细胞

        极化的干预作用                   Δ


        李建功 ,孙文熙 ,刘家玥 ,李雪山 ,薛伟琪 ,罗川晋 (1.中山市中医院内一科,广东 中山 528400;2.广州中
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        医药大学针灸康复临床医学院,广州 510405;3.广州中医药大学第一临床医学院,广州 510405;4.广州中医
        药大学第一附属医院心血管科,广州 510405)
        中图分类号 R285.5          文献标志码 A          文章编号 1001-0408(2020)15-1804-06
        DOI   10.6039/j.issn.1001-0408.2020.15.03

        摘   要   目的:基于Toll样受体4(TLR4)/髓样分化因子88(MyD88)/核因子κB(NF-κB)信号通路研究黄连素对小鼠巨噬细胞极化
        的影响。方法:以小鼠巨噬细胞RAW264.7为对象,以阿托伐他汀钙为阳性对照,经脂多糖(LPS)诱导以复制炎症细胞模型,采用
        酶联免疫吸附测定法检测低、中、高剂量黄连素(5、10、20 μmol/L)作用24 h后细胞培养液中肿瘤坏死因子α(TNF-α)、白细胞介素6
        (IL-6)、NF-κB含量,采用实时荧光定量聚合酶链反应法检测细胞中TLR4、MyD88 mRNA的表达水平,采用Western blotting法检
        测细胞中TLR4、MyD88、诱导型一氧化氮合酶(iNOS)、CD206蛋白的表达水平。结果:与空白对照组比较,LPS诱导组细胞培养
        液中TNF-α、IL-6、NF-κB含量,细胞中TLR4、MyD88 mRNA的相对表达量以及TLR4、MyD88、iNOS蛋白相对表达量均显著升高
        (P<0.05)。与LPS诱导组比较,阿托伐他汀钙组和黄连素中、高剂量组TNF-α、IL-6含量,TRL4、MyD88 mRNA及其蛋白的相对
        表达量以及各给药组NF-κB含量和iNOS蛋白的相对表达量均显著降低,且黄连素高剂量组NF-κB含量显著低于阿托伐他汀钙组
        (P<0.05);阿托伐他汀钙组和黄连素高剂量组CD206蛋白的相对表达量均显著升高,且黄连素高剂量组CD206蛋白的相对表达
        量显著高于阿托伐他汀钙组(P<0.05)。结论:不同剂量的黄连素均可不同程度地干预小鼠巨噬细胞极化,其机制可能与调控
        TLR4/MyD88/NF-κB信号通路有关。
        关键词 黄连素;小鼠巨噬细胞;RAW264.7细胞;极化;Toll样受体4/髓样分化因子88/核因子κB信号通路
        Intervention Effects of Berberine on Mice Macrophage Polarization Based on TLR4/MyD88/NF-κB Signaling
        Pathway
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        LI Jiangong ,SUN Wenxi ,LIU Jiayue ,LI Xueshan ,XUE Weiqi ,LUO Chuanjin(1. Dept. One of Internal
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        Medicine, Zhongshan Hospital of TCM, Guangdong Zhongshan 528400, China; 2. Clinical College of
        Acupuncture and Rehabilitation,Guangzhou University of TCM,Guangzhou 510405,China;3. The First
        Clinical Medical College, Guangzhou University of TCM, Guangzhou 510405, China; 4. Dept. of
        Cardiovascular Disease,the First Affiliated Hospital of Guangzhou University of TCM,Guangzhou 510405,
        China)
        ABSTRACT    OBJECTIVE:To study the effects of berberine on mice macrophage polarization based on TLR4-MyD88-NF-κB
        signaling pathway. METHODS:Using mice RAW264.7 macrophage as the object,atorvastatin calcium as positive control,
        inflammatory cell model was induced by lipopolysaccharide(LPS);ELISA method was used to detect the contents of TNF-α,IL-6
        and NF-κB in cell culture medium after treated with low,medium and high doses of berberine(5,10,20 μmol/L)for 24 h. The
        real-time fluorescence quantitative PCR was conducted to determine the mRNA expression of TLR4 and MyD88 in cells. Western
        blotting assay was used to detect the protein expression of TLR4,MyD88,iNOS and CD206 in cells. RESULTS:Compared with
        blank control group,the contents of TNF-α,IL-6 and NF-κB in cell culture medium,mRNA expression of TLR4 and MyD88,
        protein expression of TLR4,MyD88 and iNOS in cells were increased significantly in LPS induction group(P<0.05). Compared
        with LPS induction group,the contents of TNF-α and IL-6,mRNA and protein expression of TLR4 and MyD88 in atorvastatin
                                                            calcium group,berberine medium-dose and high-dose groups
            Δ 基金项目:国家自然科学基金资助项目(No.81673923);广东省
                                                            as well as the content of NF-κ B and protein expression of
        普通高校重点科研平台和科研项目(No.2018KQNCX038)
                                                            iNOS in administration groups were decreased significantly,
            *副主任医师,硕士。研究方向:冠心病的中西医治疗。电话:
                                                            while the content of NF-κB in berberine high-dose group was
        0760-89980716。E-mail:lee-gongzi@163.com
            # 通信作者:副主任医师,硕士。研究方向:冠心病的中医药防                   significantly lower than atorvastatin calcium group(P<0.05).
        治。E-mail:lcj_0124@126.com                           The protein expressions of CD206 in atorvastatin calcium


        ·1804  ·  China Pharmacy 2020 Vol. 31 No. 15                                中国药房    2020年第31卷第15期
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