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·药学研究·

        鼻渊舒口服液对 CRS 模型小鼠鼻窦黏膜 IFN-γ及免疫检查点

        B7-H1/PD-1 mRNA表达的影响研究                                  Δ


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        付译节 ,李 辉 ,朱天民 ,朱 鑫 ,李 璐 ,胡守亮(1.成都大学医学院,成都 610106;2.成都中医药大学
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        养生康复学院,成都 610075)
        中图分类号 R285          文献标志码 A           文章编号 1001-0408(2020)17-2076-06
        DOI   10.6039/j.issn.1001-0408.2020.17.06
        摘   要   目的:探讨鼻渊舒口服液对慢性鼻-鼻窦炎(CRS)模型小鼠γ干扰素(IFN-γ)的影响,并基于协同刺激分子 B7 同源物 l
        (B7-H1)/程序性死亡因子1(PD-1)免疫检测点探讨其可能机制。方法:将雄性C57小鼠随机分为正常组、假手术组、化学药对照
        组(克拉霉素,103 mg/kg)和鼻渊舒低、中、高剂量组(鼻渊舒口服液,3.1、6.2、12.4 mL/kg),每组20只。除正常组不作任何处理外,
        其余各组小鼠均开放上颌窦,假手术组不填充带菌海绵,模型组和各给药组填充带菌海绵以复制CRS模型。自造模后第8周开
        始,正常组、假手术组和模型组小鼠均灌胃生理盐水0.2 mL,各给药组小鼠灌胃相应药物,每日1次,连续14 d。观察小鼠的鼻部
        症状和一般情况,采用苏木精-伊红染色法观察小鼠鼻窦黏膜的病理变化;采用实时荧光定量聚合酶链式反应法检测小鼠鼻窦黏
        膜中IFN-γ、B7-H1、PD-1 mRNA的表达情况。结果:正常组、假手术组小鼠未见鼻部异常,鼻窦黏膜上皮及纤毛完整,两组IFN-γ、
        B7-H1、PD-1 mRNA的相对表达量比较差异均无统计学意义(P>0.05)。模型组小鼠可见流涕且频繁挠鼻、喷嚏,鼻腔内有少量黄
        色分泌物,脱毛严重;其鼻窦黏膜严重缺损、纤毛脱落,黏膜下层腺体增生,可见淋巴细胞浸润;鼻窦黏膜中 IFN-γ、B7-H1、PD-1
        mRNA的相对表达量均较正常组显著升高(P<0.01)。与模型组比较,各给药组小鼠的鼻部症状、一般情况及鼻窦组织病理学变
        化均有不同程度的改善,化学药对照组和鼻渊舒中、高剂量组小鼠鼻窦黏膜中IFN-γ、B7-H1 mRNA以及各给药组PD-1 mRNA的
        相对表达量均显著降低,且鼻渊舒中、高剂量上述指标均显著低于低剂量组,而鼻渊舒高剂量组IFN-γ mRNA的相对表达量显著
        高于中剂量组。鼻渊舒低、高剂量组IFN-γ mRNA,低剂量组B7-H1 mRNA以及各剂量组PD-1 mRNA的相对表达量均显著高于
        化学药对照组(P<0.05或P<0.01);鼻渊舒中剂量组上述指标水平与化学药对照组相当(P>0.05)。结论:鼻渊舒口服液可改善
        CRS模型小鼠鼻窦黏膜的慢性炎症,其机制可能与通过抑制IFN-γ mRNA表达从而干预B7-H1/PD-1 mRNA过度表达有关。
        关键词 鼻渊舒口服液;慢性鼻-鼻窦炎;γ干扰素;协同刺激分子B7同源物l;程序性死亡因子1;免疫检查点;小鼠;机制
        Study on the Effects of Biyuanshu Oral Solution on mRNA Expression of IFN-γ and Immune Checkpoint
        B7-H1/PD-1 of Nasal Sinus Mucosa in CRS Model Mice
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        FU Yijie ,LI Hui ,ZHU Tianmin ,ZHU Xin ,LI Lu ,HU Shouliang (1. School of Medicine,Chengdu
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        University,Chengdu 610106,China;2. School of Rehabilitation and Health Preservation,Chengdu University
        of TCM,Chengdu 610075,China)
        ABSTRACT    OBJECTIVE:To investigate the effects of Biyuanshu (BYS) oral solution on IFN-γ of chronic rhinosinusitis
        (CRS)model mice,and to investigate its potential mechanism on the basis of B7-H1/PD-1 immune checkpoint. METHODS:Male
        C57 mice were randomly divided into normal group,sham operation group,chemical medicine control group(clarithromycin,103
        mg/kg),BYS low-dose,medium-dose and high-dose groups(BYS oral solution,3.1,6.2,12.4 mL/kg),with 20 mice in each
        group. Except for normal group without any treatment,other mice were all open maxillary sinus,sham operation group was not
        filled with sponge with bacteria,while model group and administration groups were filled with sponge with bacteria to induce CRS
        model. Since 8th week after modeling,normal group,sham operation group and model group were given normal saline 0.2 mL
        intragastrically,administration groups were given relevant medicine intragastrically,once a day,for consecutive 14 d. The nasal
        symptoms and general condition of mice were observed,and the pathological changes of mice’s nasal sinus mucosa were observed
        by HE staining;qRT-PCR was used to measure the mRNA expression of IFN-γ,B7-H1 and PD-1 in nasal sinus mucosa of mice.
                                                            RESULTS:The normal group and sham operation group had
            Δ 基 金 项 目 :国 家 自 然 科 学 基 金 资 助 项 目(No.81674037,
                                                            no abnormal in nose,and the epithelium and cilia of the nasal
        No.81102621);四川省科技计划项目(No.2018SZ0375)
                                                            sinus mucosa were intact;there was no significant difference
            * 副 教 授 ,硕 士 。 研 究 方 向 :炎 症 性 疾 病 的 基 础 。 E-mail:
        f8y3j0127@163.com                                   in the relative mRNA expression of IFN-γ,B7-H1 and PD-1
            # 通信作者:教授,博士。研究方向:中医药治疗慢性炎症性疾                   between 2 groups(P>0.05). In model group,the mice were
        病。E-mail:ttlihui@163.com                            found to have runny nose,frequent scratching and sneezing,a


        ·2076 ·  China Pharmacy 2020 Vol. 31 No. 17                                 中国药房    2020年第31卷第17期
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