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益母草碱通过调节 HMGB1/RAGE 信号通路对重症急性胰腺炎

          大鼠的改善作用
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          代静静 ,王 兆,唐 奇[遵义市第一人民医院(遵义医科大学第三附属医院)重症医学科,贵州 遵义 563000]
          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2024)14-1722-05
          DOI  10.6039/j.issn.1001-0408.2024.14.08

          摘   要  目的  研究益母草碱对重症急性胰腺炎(SAP)大鼠胰腺损伤的影响,并基于高迁移率族蛋白1(HMGB1)/晚期糖基化终
          产物受体(RAGE)信号通路探讨其作用机制。方法  采用胰胆管注射5%牛磺胆酸钠构建SAP大鼠模型,造模成功的大鼠随机分
          为模型组、低剂量益母草碱组(8 mg/kg)、高剂量益母草碱组(16 mg/kg)、HMGB1 过表达组(8 μg/kg)、高剂量益母草碱+HMGB1
          过表达组(16 mg/kg益母草碱+8 μg/kg HMGB1),每组14只;另取14只大鼠作为假手术组。各组大鼠腹腔或尾静脉注射相应药物
          或生理盐水,每日1次,连续5 d。末次给药后,检测大鼠血清中淀粉酶(AMS)、脂肪酶(LPS)水平;观察其胰腺组织病理损伤;检测
          其胰腺组织中肿瘤坏死因子 α(TNF-α)、白细胞介素 6(IL-6)、丙二醛(MDA)、超氧化物歧化酶(SOD)水平以及 HMGB1、RAGE
          mRNA和蛋白表达水平。结果  与模型组比较,低、高剂量益母草碱组大鼠胰腺组织结构逐渐恢复、炎症细胞浸润逐渐减少,病理
          损伤评分和 AMS、LPS、TNF-α、IL-6、MDA 水平以及 HMGB1、RAGE mRNA 和蛋白表达水平均显著降低,SOD 水平均显著升高
         (P<0.05),且高剂量益母草碱组改善效果更明显(P<0.05);HMGB1过表达组大鼠胰腺组织病理损伤加重,除SOD水平显著降低
          外,其余各指标均显著升高(P<0.05)。HMGB1 过表达可减弱高剂量益母草碱对 SAP 大鼠上述指标的改善效果(P<0.05)。
          结论  益母草碱可能通过抑制HMGB1/RAGE信号通路激活来减轻SAP大鼠的胰腺损伤和胰腺组织的炎症反应、氧化应激。
          关键词  益母草碱;重症急性胰腺炎;高迁移率族蛋白1;晚期糖基化终产物受体;胰腺损伤

          Effects  of  leonurine  on  the  improvement  of  rats  with  severe  acute  pancreatitis  by  regulating  HMGB1/
          RAGE signaling pathway
          DAI Jingjing,WANG Zhao,TANG Qi[Dept.  of  Critical  Care  Medicine,  Zunyi  First  People’s  Hospital (Third
          Affiliated Hospital of Zunyi Medical University), Guizhou Zunyi 563000, China]

          ABSTRACT    OBJECTIVE  To  study  the  effects  of  leonurine  on  pancreatic  injury  in  rats  with  severe  acute  pancreatitis (SAP),
          and  to  explore  its  mechanism  based  on  the  high-mobility  group  box  1 (HMGB1)/receptor  for  advanced  glycation  end  products
         (RAGE) signaling pathway. METHODS SAP rat model was constructed by injecting 5% sodium taurocholate into the bile duct of
          the pancreas. Model rats were randomly divided into model group, low dose leonurine group (8 mg/kg), high dose leonurine group
         (16  mg/kg),  HMGB1  overexpression  group (8  μg/kg),  and  high  dose  leonurine+HMGB1  overexpression  group (16  mg/kg+8
          μg/kg),  with  14  rats  in  each  group. Another  14  rats  were  selected  as  the  sham  operation  group.  Rats  in  each  group  were  injected
          with  corresponding  drugs  or  normal  saline  via  abdominal  cavity  or  tail  vein  once  a  day  for  5  consecutive  days.  After  the  last
          administration,  the  levels  of  serum  amylase (AMS)  and  lipase (LPS)  were  detected;  the  pathological  injury  of  pancreatic  tissue
          was  observed;  the  levels  of  tumor  necrosis  factor-α (TNF-α),  interleukin-6 (IL-6),  malondialdehyde (MDA)  and  superoxide
          dismutase (SOD),  mRNA  and  protein  expressions  of  HMGB1  and  RAGE  in  pancreatic  tissues  were  detected.  RESULTS
          Compared  with  model  group,  the  structure  of  pancreatic  tissue  in  rats  gradually  recovered  in  low  and  high  dose  leonurine  groups;
          inflammatory cell infiltration gradually decreased; the pathological injury score and the levels of AMS, LPS, TNF-α, IL-6, MDA,
          the  mRNA  and  protein  expressions  of  HMGB1  and  RAGE  were  significantly  decreased,  while  the  SOD  levels  were  significantly
          increased (P<0.05). The high dose leonurine group showed more significant improvement (P<0.05); the pathological damage of
          pancreatic  tissue  in  the  HMGB1  overexpression  group  worsened,  and  except  for  a  decrease  in  SOD  levels,  all  other  quantitative
          indicators  increased  significantly (P<0.05).  Overexpression  of  HMGB1  could  reduce  the  improvement  effect  of  high  dose
          leonurine  on  the  above  indexes  in  SAP  rats (P<0.05).  CONCLUSIONS  Leonurine  may  alleviate  pancreatic  injury,  inflammation
          and oxidative stress in pancreatic tissue of rats with SAP by inhibiting the HMGB1/RAGE signaling pathway.
          KEYWORDS     leonurine; severe acute pancreatitis; HMGB1; RAGE; pancreatic injury


              Δ 基金项目 贵州省中医药管理局中医药、民族医药科学技术研
                                                                  重症急性胰腺炎(severe acute pancreatitis,SAP)属
          究课题(No.QZYY-2023-079)
                                                              于急性胰腺炎中最严重的一种,是腹部炎症性疾病,其
             *第一作者 主治医师,硕士。研究方向:急性胰腺炎诊治。E-
          mail:daijingjing827@sina.com                        不仅会涉及胰腺实质和胰周组织,还会导致器官衰竭


          · 1722 ·    China Pharmacy  2024 Vol. 35  No. 14                            中国药房  2024年第35卷第14期
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