Experimental study on the expression of α-SMA and HMGB1 in silicotic fibrosismodel rats interfered by lumbricus
10.3760/cma.j.issn.1001-9391.2017.11.005
- VernacularTitle: 地龙对矽肺模型大鼠α-平滑肌肌动蛋白和高迁移率族蛋白B1表达的影响
- Author:
Ting YU
1
;
Guohui LI
;
Yangmin JIA
;
Yi LOU
;
Xiaoyu GAN
Author Information
1. Department of Occupational Diseases, Zhejiang Combination Hospital of Traditional Chinese medicine and Western Medicine, Hangzhou, Zhejiang 310053, China
- Publication Type:Journal Article
- Keywords:
LUMBRICUS;
Silicosis;
Actin;
High mobility group protein B1 (HMGB1)
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2017;35(11):823-828
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To observe the expression of alpha smooth muscle actin (α-SMA) and high mo-bility group protein B1 (HMGB1) in silicosis model rats interfered by lumbricus.
Methods:45 rats were ran-domly divided into the control group, model group and group interfered by lumbricus. The silicosis model rats were established. The group interfered by lumbricus were intragastric administered with lumbricus decoction by the 4 ml/kg dose. The control group and model group were ig administered with the equal amount of normal saline. Each group were killed 5 rats on the 7th, 14th and 28th day. The lung tissues were stained with HE and Sirius red methods. The mRNA expressions of α-SMA and HMGB1 were determined with RT-PCR; The pro-tein levels of α-SMA and HMGB1 were determined with Western blotting.
Results:Compared with the control group, the expression levels of α-SMA and HMGB1mRNA and protein in lung tissue of model group were grad-ually increased in the 7th, 14th and 28th days, the difference was statistically significant (P< 0.01) . Compared with model group, the levels of α-SMA and HMGB1mRNA and protein in lung tissue of group interfered by lumbricus were gradually lowered in the 7th, 14th and 28th days, the difference was statistically significant (P<0.05, P<0.01) .
Conclusion:Lumbricus inhibits the collagen deposition and the formation of silicosis pulmo-nary fibrosis, which may be related to the inhibition of HMGB1 expression and activation of α-SMA in lung tis-sue.
