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汉黄芩素对慢性阻塞性肺疾病模型大鼠气道炎症的影响及机制
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邹 曲 ,符丹丹 ,范腾阳 ,欧阳瑶 (1.遵义医科大学附属医院全科医学科,贵州 遵义 563000;2.遵义医科
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大学第二附属医院呼吸内科,贵州 遵义 563000;3.遵义医科大学附属医院呼吸内科,贵州 遵义 563000)
中图分类号 R965 文献标志码 A 文章编号 1001-0408(2023)09-1060-06
DOI 10.6039/j.issn.1001-0408.2023.09.07
摘 要 目的 研究汉黄芩素(Wog)对慢性阻塞性肺疾病(COPD)模型大鼠气道炎症的影响及可能机制。方法 将84只大鼠按随
机数字表法分为对照组,模型组,Wog低、高剂量组(灌胃给药,50、100 mg/kg),氨茶碱组(阳性对照,灌胃给药,2.3 mg/kg),重组大
鼠受体相互作用蛋白激酶1[rRIPK1,受体相互作用蛋白激酶1(RIPK1)激活剂]组(尾静脉注射给药,8 µg/kg),Wog高剂量+rRIPK1
组(灌胃100 mg/kg Wog并尾静脉注射8 µg/kg rRIPK1),每组12只。除对照组外,其余各组大鼠均利用烟熏联合气管注射脂多糖
的方法构建COPD模型。建模24 h后,进行给药处理;每天给药1次,持续4周。末次给药后,测定各组大鼠的吸气峰流量(PIF)、
呼气峰流量(PEF)、每分钟通气量(MV)和第 1 秒用力呼气容积(FEV1 )/用力肺活量(FVC)比值,测定大鼠血清中白细胞介素 1β
(IL-1β)、IL-6、肿瘤坏死因子α(TNF-α)水平,观察大鼠肺组织病理形态学变化,测定大鼠肺上皮细胞凋亡率,并测定大鼠肺组织
中RIPK1、RIPK3、混合系激酶区域样蛋白(MLKL) mRNA和RIPK1、RIPK3、磷酸化MLKL(p-MLKL)蛋白表达水平。结果 与对
照组比较,模型组大鼠PIF、PEF、MV、FEV1/FVC比值显著降低(P<0.05),IL-1β、IL-6、TNF-α 水平显著升高(P<0.05),肺组织有
大量炎症细胞浸润、支气管壁增厚,肺上皮细胞凋亡率及RIPK1、RIPK3、MLKL mRNA和RIPK1、RIPK3、p-MLKL蛋白表达水平也显著
升高(P<0.05)。与模型组比较,Wog低、高剂量组大鼠上述指标均显著改善(P<0.05),病理损伤明显减轻;而rRIPK1组大鼠对应
指标却显著恶化(P<0.05),病理损伤也进一步加重;并且,rRIPK1 可明显减弱高剂量 Wog 对 COPD 大鼠气道炎症和 RIPK1/
RIPK3/MLKL通路的抑制作用(P<0.05)。结论 Wog可能通过抑制RIPK1/RIPK3/MLKL信号通路改善COPD大鼠的气道炎症。
关键词 汉黄芩素;慢性阻塞性肺疾病;气道炎症;受体相互作用蛋白激酶1;受体相互作用蛋白激酶3;混合系激酶区域样蛋白
Effects and mechanisms of wogonin on airway inflammation in rats with chronic obstructive pulmonary
disease
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ZOU Qu ,FU Dandan ,FAN Tengyang ,OUYANG Yao(1. Dept. of General Practice, the Affiliated Hospital of
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Zunyi Medical University, Guizhou Zunyi 563000, China;2. Dept. of Respiratory Medicine, the Second
Affiliated Hospital of Zunyi Medical University, Guizhou Zunyi 563000, China;3. Dept. of Respiratory
Medicine, the Affiliated Hospital of Zunyi Medical University, Guizhou Zunyi 563000, China)
ABSTRACT OBJECTIVE To study the effects and potential mechanism of wogonin (Wog) on airway inflammation in rats with
chronic obstructive pulmonary disease (COPD). METHODS Eighty-four rats were randomly divided into control group, model
group, Wog low-dose and high-dose groups (intragastric administration of 50, 100 mg/kg), aminophylline group (positive control,
intragastric administration of 2.3 mg/kg), recombinant rat receptor-interacting protein kinase 1 [rRIPK1, receptor-interacting protein
kinase 1 (RIPK1) activator] group (tail vein injection of 8 µg/kg), and Wog high-dose+rRIPK1 group (intragastric administration of
Wog 100 mg/kg+tail vein injection of rRIPK 8 µg/kg), with 12 rats in each group. Except for control group, COPD model of other
groups was induced by smoking combined with tracheal injection of lipopolysaccharide. Twenty-four hours after successful
modeling, the rats were administered once a day for 4 weeks. The changes of peak inspiratory flow (PIF), peak expiratory flow
(PEF) and minute ventilation (MV),forced expiratory volume in one second(FEV1 )/forced vital capacity(FVC) were measured
after the last medication; the serum levels of interleukin 1β(IL-1β), IL-6 and tumor necrosis factor-α (TNF-α) were measured by
ELISA; the pathological changes of lung tissue in rats were observed; the apoptotic rate of pulmonary epithelial cells was detected.
mRNA expressions of RIPK1, RIPK3 and mixed lineage kinase domain-like protein (MLKL), and protein expressions of RIPK1,
RIPK3 and p-MLKL were all detected in lung tissue of rats.
Δ 基金项目 贵 州 省 科 技 计 划 项 目(No. 黔 科 合 支 撑〔2020〕 RESULTS Compared with control group, PIF, PEF, MV and
4Y141号) FEV1/FVC of model group were decreased significantly (P<
*第一作者 主治医师。研究方向:慢性阻塞性肺疾病。电话: 0.05), while the levels of IL-1β, IL-6 and TNF- α were
0851-28608728。E-mail:ya_yaj@163.com
increased significantly (P<0.05); there was a large number of
# 通信作者 主任医师,硕士。研究方向:慢性阻塞性肺疾病。电
话:0851-28608155。E-mail:ouyangyao116@sohu.com inflammatory cells infiltration in the lung tissue and bronchial
· 1060 · China Pharmacy 2023 Vol. 34 No. 9 中国药房 2023年第34卷第9期