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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
Δ
*
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