Effect of Volatile Oil from Xanthii Fructus on Airway Remodeling of Rats with Bronchial Asthma

Xi YAN; Ya-lei GUO; Zhong-feng XUE

doi:10.13422/j.cnki.syfjx.20191304

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Effect of Volatile Oil from Xanthii Fructus on Airway Remodeling of Rats with Bronchial Asthma

Pharmacology | 更新时间：2021-02-09

- Effect of Volatile Oil from Xanthii Fructus on Airway Remodeling of Rats with Bronchial Asthma
- Chinese Journal of Experimental Traditional Medical Formulae Vol. 25, Issue 14, Pages: 106-111(2019)
- 作者机构：
  
  1. 　三亚市中医院，海南　三亚　 572000；
  2. 　广西中医药大学，南宁　 530200
- 作者简介：
- 基金信息：
- DOI：10.13422/j.cnki.syfjx.20191304
  CLC： R2-0; R22; R285.5
- Received：21 December 2018，
  
  Published Online：19 March 2019，
  
  Published：20 July 2019
- 稿件说明：
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Xi YAN, Ya-lei GUO, Zhong-feng XUE. Effect of Volatile Oil from Xanthii Fructus on Airway Remodeling of Rats with Bronchial Asthma[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(14): 106-111.
DOI：

Xi YAN, Ya-lei GUO, Zhong-feng XUE. Effect of Volatile Oil from Xanthii Fructus on Airway Remodeling of Rats with Bronchial Asthma[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(14): 106-111. DOI： 10.13422/j.cnki.syfjx.20191304.

摘要

目的：

探讨苍耳子挥发油对支气管哮喘模型大鼠气道重塑的影响，并从对基质金属蛋白酶-9(MMP-9)，基质金属蛋白酶组织抑制剂-1(TIMP-1)，血小板衍生生长因子(PDGF)，转化生长因子-

(TGF-

)，Smad2，Smad3和Smad7 mRNA的表达方面探讨了其作用机制。

方法：

SD大鼠雌雄各半，共48只，随机分为正常组，模型组，苍耳子挥发油7.5，15，30 mg·kg

－1

组和地塞米松(0.5 mg·kg

－1

)组，每组各8只。除正常组外，用卵蛋白致敏并雾化吸入法诱发大鼠支气管哮喘模型。苍耳子挥发油给药组从第1次哮喘激发开始(造模后第4周)至处死前每天通过喷雾给予苍耳子挥发油干预，共4周。进行苏木素-伊红(HE)染色分析支气管肺组织病理学改变；进行气道重塑情况观察，记录支气管管腔内周长(Pi)，支气管平滑肌面积(S)，管壁面积(W)，平滑肌细胞核数(N)；检测肺泡灌洗液(BALF)中内皮素-1(ET-1)和类胰岛素生长因子-1(IGF-1)水平；采用实时荧光定量聚合酶链式反应(Real-time PCR)法检测肺组织MMP-9，TIMP-1，PDGF，TGF-

，Smad2，Smad3和Smad7 mRNA的表达。

结果：

模型组支气管壁周围有大量炎性细胞浸润，气道平滑肌厚度明显增加，官腔变窄扁平，基底膜增厚；苍耳子挥发油各剂量组明显改善支气管肺组织病理损伤。与正常组比较，模型组S/Pi，W/Pi，N/Pi均明显升高(

0.01)，苍耳子挥发油各剂量组和地塞米松组S/Pi，W/Pi，N/Pi均低于模型组(

0.01)。与正常比较，模型组BALF中ET-1和IGF-1水平明显升高(

0.01)，苍耳子挥发油各剂量组和地塞米松组BALF中ET-1和IGF-1水平明显低于模型组(

0.01)。与正常比较，模型组MMP-9 mRNA表达明显升高(

0.01)，TIMP-1 mRNA表达明显降低(

0.01)，MMP-9/TIMP-1明显升高(

0.01)，苍耳子挥发油各剂量组和地塞米松组MMP-9 mRNA表达和MMP-9/TIMP-1低于模型组(

0.01)。与正常组比较，模型组肺组织PDGF mRNA表达明显增强(

0.01)，苍耳子挥发油各剂量组和地塞米松组PDGF mRNA表达均低于模型组(

0.01)。与正常组相比较，模型组TGF-

，Smad2和Smad3 mRNA表达均增强(

0.01)，Smad7 mRNA表达减弱(

0.01)，与模型组比较，苍耳子挥发油各剂量组和地塞米松组TGF-

，Smad2和Smad3 mRNA表达减弱(

0.01)，Smad7 mRNA表达增强(

0.01)。

结论：

苍耳子挥发油可调节MMP-9，TIMP-1水平及MMP-9/TIMP-1值，调节TGF-

/Smad信号通路，抑制PDGF，ET-1和IGF-1因子表达，通过多种途径抑制了上皮下纤维化、细胞外基质合成、气道平滑肌细胞增殖、迁移等，起到减轻或抑制气道重塑，从而起到防治哮喘的作用。

Abstract

Objective:

To discuss the effect of volatile oil from Xanthii Fructus on airway remodeling of rats with bronchial asthma

in order to discuss the mechanism of action through matrix metalloteinases-9 (MMP-9)

tissue inhibitor of metalloproteinase-1 (TIMP-1)

platelet derived growth factor (PDGF)

transforming growth factor-

(TGF-

)

Smad2

Smad3 and Smad7 mRNA expressions.

Method:

Forty-eight rats (half males and half females) were randomly divided into six groups (

=8)

namely normal saline group

model group

volatile oil from Xanthii Fructus (7.5

30 mg·kg

-1

) groups and dexamethasone group (0.5 mg·kg

-1

). Except for normal saline group

airway remodeling of rats were established through ovalbumin sensitization and atomization inhalation method. At volatile oil group

rats got volatile oil spray since the first time (the 4

week after modeling) of inspiration of asthma to the last day before the end of test. Histopathological changes of bronchus and lung were analyzed by htoxylin eosin (HE) stain. And airway remodeling was observed

and perimeter of bronchial lumen (Pi)

smooth muscle area of bronchi (S)

tube wall area (W) and nuclei of smooth muscle cells (N) were recorded. And levels of endothelin-1 (ET-1) and insulin-like growth factor-1(IGF-1) in irrigation solution of Alveoli (BALF) were detected. And mRNA expressions of MMP-9

TIMP-1

PDGF

TGF-

Smad2

Smad3 and Smad7 were detected by real-time quantitative-polymerase chain reaction (Real-time PCR).

Result:

In the model group

infiltration of a large number of inflammatory cells were found at the peribronchial wall

airway smooth muscle thickness and basement membrane increased

and bureaucratic cavity was narrower and flatter. Volatile oil from Xanthii Fructus can ameliorate pathological damage of bronchopulmonary tissue. Levels of S/Pi

W/Pi and N/Pi

BALF

ET-1

IGF-1 and MMP-9/TIMP-1 and mRNA expressions of MMP-9 and PDGF in volatile oil group and dexamethasone group were lower than those in model group (

0.01). Compared with model group

mRNA expressions of TGF-

Smad2 and Smad3 were less than those in model group (

0.01)

while mRNA expression of Smad7 was more than that in model group (

0.01).

Conclusion:

Volatile oil from Xanthii Fructus can regulate levels of MMP-9

TIMP-1

MMP-9/TIMP-1

TGF-

/Smad

inhibit expressions of PDGF

ET-1 and IGF-1

and suppress subepithelial fibrosis

extracellular matrix synthesis

proliferation and migration of airway smooth muscle cells to relieve or inhibit airway remodeling

so as to prevent and treat asthma.

关键词

Keywords

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