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·药学研究·


          青藤碱对小鼠非酒精性脂肪性肝炎的改善作用及机制
                                                                                            Δ

          曾 诚    1, 2* ,翁良坤(1.广东药科大学附属第一医院临床药学重点专科,广州 510699;2.广东药科大学新药
                            2
          研发中心,广州 510006)


          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2024)14-1701-07
          DOI  10.6039/j.issn.1001-0408.2024.14.05


          摘  要  目的  探究青藤碱(Sin)对非酒精性脂肪性肝炎(NASH)的改善作用及潜在机制。方法  以雄性C57BL/6J小鼠为对象,将
          其随机分为标准饲料(SCD)组、高脂饲料(HFD)组、Sin低剂量组(Sin-L组,50 mg/kg)、Sin高剂量组(Sin-H组,100 mg/kg),每组6
          只。SCD组小鼠以SCD正常喂养,其余组小鼠均以HFD连续饲养24周以复制NASH模型;于17周起,各药物组小鼠分别灌胃相
          应药液,每天1次,连续8周。末次给药后,称定各组小鼠体重、肝脏质量并计算肝脏指数;检测其肝组织中总胆固醇(TC)、甘油三
          酯(TG)含量和血清中天冬氨酸转移酶(AST)、丙氨酸转氨酶(ALT)、白细胞介素1β(IL-1β)、IL-18含量;观察其肝细胞脂肪变性、
          肝纤维化,并定位肝脏脂滴;检测其 IL-18、IL-1β mRNA 和炎症相关蛋白[IL-1β、剪切的 IL-1β(cleaved-IL-1β)]、纤维化相关蛋白
          [Ⅰ型胶原蛋白(Col-Ⅰ)、α-平滑肌肌动蛋白(α-SMA)、结缔组织生长因子(CTGF)]、通路相关蛋白[腺苷一磷酸活化的蛋白激酶
         (AMPK)、磷酸化AMPK(p-AMPK)、Yes相关蛋白(YAP)、磷酸化YAP(p-YAP)]的表达情况。以人肝癌细胞HepG2为对象,将其
          分为对照组、油酸(OA)组、Sin 50 μmol/L组、Sin 100 μmol/L组、OA+Sin 50 μmol/L组和OA+Sin 100 μmol/L组,处理24 h后,观察
          其脂滴蓄积情况,并检测其通路相关蛋白的表达情况。结果  与HFD组比较,Sin各剂量组小鼠的肝细胞脂肪变性、纤维化病变和
          脂滴蓄积均有所缓解;其体重,肝脏质量,肝脏指数(Sin-L组除外),血清AST、ALT、IL-1β、IL-18含量,肝组织中TG、TC含量,IL-
          1β、IL-18 mRNA的表达水平,以及cleaved-IL-1β蛋白和纤维化相关蛋白的表达水平均显著降低(P<0.01);肝组织中IL-1β蛋白
          的表达水平和AMPK、YAP蛋白的磷酸化水平均显著升高(P<0.01)。与OA组比较,OA+Sin各浓度组细胞的脂滴蓄积均明显减
          少,AMPK、YAP蛋白的磷酸化水平均显著升高(P<0.05)。结论  Sin可改善NASH小鼠肝组织的炎症反应、脂质沉积和纤维化,
          其机制可能与激活AMPK信号通路、促进YAP蛋白磷酸化相关。
          关键词  非酒精性脂肪性肝炎;青藤碱;腺苷一磷酸活化的蛋白激酶;Yes相关蛋白;炎症反应

          Improvement effects and mechanism of sinomenine on non-alcoholic steatohepatitis in mice
                      1, 2
                                         2
          ZENG Cheng ,WENG Liangkun (1.  Key  Specialty  of  Clinical  Pharmacy,  the  First  Affiliated  Hospital  of
          Guangdong  Pharmaceutical  University,  Guangzhou  510699,  China;2.  Center  for  Drug  Research  and
          Development, Guangdong Pharmaceutical University, Guangzhou 510006, China)

          ABSTRACT   OBJECTIVE To investigate the improvement effects of sinomenine (Sin) on non-alcoholic steatohepatitis (NASH)
          and its potential mechanism. METHODS Male C57BL/6J mice were randomly divided into standard chow diet (SCD) group, high-
          fat diet (HFD) group, Sin low-dose group (Sin-L group, 50 mg/kg), and Sin high-dose group (Sin-H group, 100 mg/kg), with 6
          mice in each group. The mice of SCD groups were fed with SCD, and other groups were given HFD for consecutive 24 weeks to
          establish  NASH  model.  Since  17th  week,  the  mice  in  each  drug  group  were  given  corresponding  drug  solutions  intragastrically,
          once  a  day,  for  8  consecutive  weeks. After  the  last  medication,  the  body  weight  and  liver  weight  of  mice  were  determined,  and
          liver  indexes  were  calculated.  The  contents  of  total  cholesterol (TC)  and  triglyceride (TG)  in  liver  tissue,  the  serum  contents  of
          aspartate  aminotransferase (AST),  alanine  aminotransferase (ALT),  interleukin-1β (IL-1β)  and  IL-18  were  all  determined.
          Hepatic steatosis and fibrosis were observed, and hepatic lipid droplets were located. The expressions of IL-18 and IL-1β mRNA,
          inflammation-related  proteins (IL-1β,  cleaved-IL-1β),  fibrosis-related  proteins  [collagen  Ⅰ (Col- Ⅰ),  α -smooth  muscle  actin
         (α -SMA),  connective  tissue  growth  factor (CTGF)],  and  pathway-related  protein  [adenosine  monophosphate-activated  protein
          kinase (AMPK),  phosphorylated  AMPK (p-AMPK),  Yes-associated  protein (YAP),  phosphorylated  YAP (p-YAP)]  were  all
          determined. HepG2 human liver cancer cells were selected as subjects and divided into control group, oleic acid (OA) group, Sin
          50 μmol/L group, Sin 100 μmol/L group, OA+Sin 50 μmol/L group and OA+Sin 100 μmol/L group. After 24 hours of treatment,
                                                             the  accumulation  of  lipid  droplets  was  observed,  and  the
             Δ 基金项目 国家自然科学基金项目(No.82100379);广东省医学            expressions  of  pathway-related  proteins  were  detected.
          科学技术研究基金项目(No.A2021120)
             *第一作者 助理研究员,博士。研究方向:药理学。E-mail:                 RESULTS  Compared  to  HFD  group,  hepatic  steatosis,
          zengcheng@gdpu.edu.cn                              fibrotic  lesions  and  lipid  droplet  accumulation  were  all


          中国药房  2024年第35卷第14期                                              China Pharmacy  2024 Vol. 35  No. 14    · 1701 ·
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