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苇茎汤对慢性阻塞性肺疾病急性加重期模型大鼠的改善作用及
机制 Δ
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廖小红 ,张毅靖 ,唐洪梅 ,丘振文 ,罗丹冬 ,杨柳柳 ,杨丽娥 ,罗 骞 (1.广州中医药大学第一附属医院药
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学部,广州 510405;2.广州中医药大学第一临床医学院,广州 510405;3.广州中医药大学第一附属医院呼吸
科,广州 510405;4.广州医科大学附属第五医院药学部,广州 510700)
中图分类号 R285.5 文献标志码 A 文章编号 1001-0408(2021)21-2593-06
DOI 10.6039/j.issn.1001-0408.2021.21.06
摘 要 目的:研究苇茎汤对慢性阻塞性肺疾病急性加重期(AECOPD)模型大鼠的改善作用及可能机制。方法:将55只雄性SD
大鼠按随机数字表法随机分为正常组,模型组,苇茎汤低、高剂量组(8.37、16.74 g/kg,以生药量计)和地塞米松组(阳性对照组,
0.09 mg/kg),每组11只。除正常组外,其余各组大鼠均采用香烟联合脂多糖诱导的方法建立AECOPD模型。造模结束后,正常组
和模型组大鼠灌胃水,其余各组大鼠灌胃相应药物,每天灌胃2次,连续14 d。末次灌胃后,测定大鼠血清中白细胞介素1β(IL-1β)水
平,观察大鼠肺组织和支气管的病理学变化,测定大鼠肺组织中基质金属蛋白酶9(MMP-9)、基质金属蛋白酶抑制剂1(TIMP-1)
mRNA表达水平及Ras同源基因家族成员A(RhoA)、蓬乱蛋白相关形态形成活化因子1(DAAM1)和细胞增殖抑制基因(HSG)蛋
白的表达水平。结果:与正常组比较,模型组大鼠血清中 IL-1β水平以及肺组织中 MMP-9、TIMP-1 mRNA 表达水平和 RhoA、
DAAM1蛋白表达水平均显著升高(P<0.05),肺组织中HSG蛋白表达水平显著降低(P<0.05);支气管周围有较多慢性炎症细胞
浸润,部分气道黏膜上皮脱落;肺泡代偿性扩张,肺间隔毛细血管扩张、充血。与模型组比较,苇茎汤高剂量组大鼠血清中IL-1β水
平和肺组织中MMP-9 、TIMP-1 mRNA表达水平均显著降低(P<0.05);苇茎汤低、高剂量组大鼠肺组织中RhoA、DAAM1蛋白表
达水平均显著降低(P<0.05),HSG蛋白表达水平均显著升高(P<0.05);苇茎汤高剂量组大鼠支气管周围炎症细胞浸润、气道黏
膜脱落等病理形态学变化均得到明显改善,肺泡上皮结构较完整、未见明显肺扩张。结论:苇茎汤对AECOPD模型大鼠具有一定
的改善作用;其机制可能与下调肺组织中MMP-9、TIMP-1 mRNA和RhoA、DAAM1蛋白的表达,上调肺组织中HSG蛋白的表达,
从而抑制气道重建有关。
关键词 慢性阻塞性肺疾病急性加重期;苇茎汤;细胞增殖抑制基因;Wnt信号通路;大鼠
Improvement Effects of Weijing Decoction on AECOPD Model Rats and Its Mechanism
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LIAO Xiaohong ,ZHANG Yijing ,TANG Hongmei ,QIU Zhenwen ,LUO Dandong ,YANG Liuliu ,YANG Li’e ,
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LUO Qian(1. Dept. of Pharmacy,the First Affilaited Hospital of Guangzhou University of TCM,Guangzhou
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510405,China;2. First Clinical Medical College,Guangzhou University of TCM,Guangzhou 510405,China;
3. Dept. of Respiratory Medicine,the First Affilaited Hospital of Guangzhou University of TCM,Guangzhou
510405,China;4. Dept. of Pharmacy,the Fifth Affilaited Hospital of Guangzhou Medical University,Guangzhou
510700,China)
ABSTRACT OBJECTIVE:To study the improvement effects of Weijing decoction on AECOPD model rats and its possibile
mechanism. METHODS:Totally 55 male SD rats were randomly divided into normal group,model group,Weijing decoction
low-dose and high-dose groups(8.37,16.74 g/kg,by crude drug),dexamethasone group(positive control group,0.09 mg/kg),with
11 rats in each group. Except for normal group,AECOPD model was induced by cigarettes combined with lipopolysaccharide in
other groups. After modeling,normal group and model group were given constant volume of water intragastrically,and other groups
were given relevant medicine intragastrocally,twice a day,for 14 days. After last intragastric administration,the serum level of IL-1
β was determined,and pathological changes of lung tissue and bronchus were observed in each group;mRNA expression of
MMP-9 and TIMP-1 genes in lung tissue were detected;protein expression of Ras homologous gene family member(RhoA),
dishevelled associated activator of morphogenesis-1 (DAAM1) and hyperplasic suppress gene (HSG) in lung tissue were also
determined. RESULTS: Compared with normal group, the
Δ 基金项目:国家自然科学基金资助项目(No.81904132);广东省
levels of IL-1β in serum,mRNA expression of MMP-9 and
中医药局科研项目(No.20201103)
TIMP-1 as well as protein expression of RhoA and DAAM1 in
*主管中药师,硕士。研究方向:中药新制剂开发及中药临床药
学。E-mail:499425803@qq.com lung tissue were increased significantly in the model group
# 通信作者:副主任中药师,硕士。研究方向:中药新药研究与临 (P<0.05),while protein expression of HSG in lung tissue
床应用。E-mail:luoqian_1015@163.com was decreased significantly (P<0.05);there were many
中国药房 2021年第32卷第21期 China Pharmacy 2021 Vol. 32 No. 21 ·2593 ·