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白花蛇舌草多糖对异烟肼致肝损伤的影响及机制
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          庄秀萍 ,李 莉 ,陈 超 ,王丽媛 ,曹广尚 ,周 朋 ,王 信 (1.山东中医药大学药学院,济南 250355;
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                 1*
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          2.山东中医药大学附属医院儿科,济南 250011;3.山东中医药大学附属医院药学部,济南 250011)
          中图分类号  R965;R285      文献标志码  A      文章编号  1001-0408(2024)06-0665-06
          DOI  10.6039/j.issn.1001-0408.2024.06.05
          摘  要  目的  探讨白花蛇舌草多糖(HDP)对异烟肼致肝损伤的影响及机制。方法  以正常发育的具有肝脏特异性荧光的转基因
          斑马鱼为对象,分为正常组、模型组(4 mmol/L 异烟肼)、HDP 低浓度组(4 mmol/L 异烟肼+50 mg/mL HDP)和 HDP 高浓度组(4
          mmol/L异烟肼+100 mg/mL HDP),分组处理后观察斑马鱼肝脏荧光面积、荧光强度以及肝组织病理变化。以人肝L02细胞为对
          象,分为正常组、模型组(4 mmol/L异烟肼)、HDP低浓度组(4 mmol/L异烟肼+2 mg/mL HDP)和HDP高浓度组(4 mmol/L异烟肼+
          4 mg/mL HDP),分组处理后检测细胞存活情况,细胞上清液中丙氨酸转氨酶(ALT)、天冬氨酸转氨酶(AST)水平及细胞裂解液中
          谷胱甘肽(GSH)含量,沉默信息调节因子1(Sirt1)、核转录因子红系2相关因子2(Nrf2)、血红素加氧酶1(HO-1)、醌氧化还原酶1
         (NQO1)蛋白的表达水平。结果  与模型组比较,HDP低、高浓度组斑马鱼肝脏荧光面积和荧光强度(HDP低浓度组除外)均显著
          增加(P<0.05 或 P<0.01),肝损伤坏死特征均有不同程度改善。与模型组比较,HDP 低、高浓度组 L02 细胞存活率,GSH 含量
         (HDP低浓度组除外),Sirt1(HDP低浓度组除外)、Nrf2、NQO1、HO-1(HDP低浓度组除外)蛋白表达水平均显著升高(P<0.05或
          P<0.01);ALT、AST(HDP低浓度组除外)水平均显著降低(P<0.05);存活细胞数量均明显增加,损伤或死亡细胞数量均明显减
          少。结论  HDP对异烟肼诱导的肝损伤具有一定的改善作用,其机制可能与激活Sirt1/Nrf2信号通路、改善线粒体功能、提高抗氧
          化能力相关。
          关键词  白花蛇舌草多糖;异烟肼;肝损伤;斑马鱼;人肝L02细胞;Sirt1/Nrf2信号通路

          Effects and mechanism of polysaccharides from Hedyotis diffusa on isoniazid-induced liver injury
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          ZHUANG Xiuping ,LI Li ,CHEN Chao ,WANG Liyuan ,CAO Guangshang ,ZHOU Peng ,WANG Xin                3
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         (1.  School  of  Pharmacy,  Shandong  University  of Traditional  Chinese  Medicine,  Jinan  250355,  China;2.  Dept.
          of  Pediatrics,  the  Affiliated  Hospital  of  Shandong  University  of  Traditional  Chinese  Medicine,  Jinan  250011,
          China;3.  Dept.  of  Pharmacy,  the Affiliated  Hospital  of  Shandong  University  of  Traditional  Chinese  Medicine,
          Jinan 250011, China)
          ABSTRACT   OBJECTIVE  To  investigate  the  effects  and  mechanism  of  polysaccharides  from  Hedyotis  diffusa (HDP)  on
          isoniazid (INH)-induced  liver  injury.  METHODS  Healthy  transgenic  zebrafish  with  liver-specific  fluorescence  were  divided  into
          normal  group,  model  group (4  mmol/L  INH),  HDP  low-concentration  group (4  mmol/L  INH+50  mg/mL  HDP)  and  HDP  high-
          concentration group (4 mmol/L INH+100 mg/mL HDP). After grouping treating, the liver fluorescence area, fluorescence intensity
          and  pathological  changes  of  liver  tissue  were  observed.  Human  liver  L02  cells  were  divided  into  normal  group,  model  group (4
          mmol/L INH), HDP low-concentration group (4 mmol/L INH+2 mg/mL HDP), and HDP high-concentration group (4 mmol/L INH +
          4  mg/mL  HDP). After  grouping  treating,  the  cell  viability  was  detected,  and  the  levels  of  alanine  transaminase (ALT),  aspartate
          transaminase (AST),  and  the  content  of  glutathione (GSH)  as  well  as  the  expression  levels  of  silent  information  regulator  1
         (Sirt1),  nuclear  factor-erythroid  2-related  factor  2 (Nrf2),  heme  oxygenase-1 (HO-1)  and  quinone  oxidoreductase  1 (NQO1)
          proteins  were  detected.  RESULTS  Compared  with  the  model  group,  the  HDP  low-  and  high-concentration  groups  showed  varying
          degrees of increase in the fluorescence area and fluorescence intensity (except for HDP low-concentration group) of zebrafish liver
         (P<0.05  or  P<0.01),  and  the  characteristics  of  liver  injury  and  necrosis  had  been  improved  to  varying  degrees.  Compared  with
          model group, the survival rate of L02 cells, the content of GSH (except for HDP low-concentration group), the protein expression
          levels  of  Sirt1 (except  for  HDP  low-concentration  group),  Nrf2,   NQO1,  HO-1 (except  for  HDP  low-concentration  group)  were
          significantly increased in HDP low- and high-concentration groups (P<0.05 or P<0.01), and the levels of ALT and AST (except
          for  HDP  low-concentration  group)  were  significantly  decreased (P<0.05);  the  number  of  survival  cells  significantly  increased,
          while the number of damaged or dead cells significantly decreased. CONCLUSIONS  HDP has a potential protective effect against
                                                             INH-induced  liver  injury,  the  mechanism  of  which  may  be
             Δ 基金项目 国家自然科学基金青年科学基金项目(No.8210-
                                                             associated  with  activating  Sirt1/Nrf2  signaling  pathway,  improving
          4506)
             *第一作者 硕士研究生。研究方向:中药药理及药效物质筛选。                   mitochondrial function and enhancing antioxidant capacity.
          E-mail:zhuangxiuping1227@163.com                   KEYWORDS     polysaccharides   from   Hedyotis   diffusa;
             # 通信作者 副教授,副主任药师,硕士生导师。研究方向:中药质                 isoniazid; liver injury; zebrafish; human liver L02 cell; Sirt1/
          量控制与药效评价。E-mail:wangxin470920844@126.com           Nrf2 signaling pathway


          中国药房  2024年第35卷第6期                                                 China Pharmacy  2024 Vol. 35  No. 6    · 665 ·
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