Relationship between expression of matrix metalloproteinase-9 and adenylyl cyclase-associated protein 1 in chronic obstructive pulmonary disease

被引：11

作者：

Xie, Shuan-Shuan ^{[1
]}

Hu, Feng ^{[1
,2
]}

Tan, Min ^{[1
]}

Duan, Yu-Xiang ^{[2
]}

Song, Xiao-Lian ^{[1
]}

Wang, Chang-Hui ^{[1
]}

机构：

[1] Tongji Univ, Shanghai Peoples Hosp 10, Dept Resp Med, Shanghai 200072, Peoples R China

[2] St Lukes Hosp, Dept Resp Med, Shanghai, Peoples R China

来源：

JOURNAL OF INTERNATIONAL MEDICAL RESEARCH | 2014年 / 42卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Matrix metalloproteinase-9; adenylyl cyclase-associated protein 1; chronic obstructive pulmonary disease; MATRIX METALLOPROTEINASES; TISSUE INHIBITOR; BIOCHEMISTRY; BIOLOGY; ACTIN; YEAST; CAP;

D O I：

10.1177/0300060514548290

中图分类号：

R-3 [医学研究方法]; R3 [基础医学];

学科分类号：

1001 ;

摘要：

Objective: To investigate the relationship between expression of matrix metalloproteinase (MMP)-9 and expression of adenylyl cyclase-associated protein (CAP)-1 in chronic obstructive pulmonary disease (COPD). Methods: Patients with possible respiratory disease were recruited into the study and divided into a COPD group and a non-COPD group on diagnosis. Pulmonary function tests were performed and serum concentrations of MMP-9 were measured using an enzyme-linked immunosorbent assay. MMP-9 and CAP1 expression were analysed in lung tissue and bronchoalveolar lavage fluid in all available samples using immunohistochemistry and Western blot, respectively. In addition, expression of MMP-9 and CAP1 in vitro was investigated using immunofluorescence. Expression of CAP1 in response to MMP-9 was measured in the human alveolar epithelial cell line HP-AEpiC, using Western blot. Results: A total of 90 patients were included in the study: 52 were in the COPD group and 38 in the non-COPD group. Serum MMP-9 concentrations were significantly higher in the COPD than in the non-COPD group. MMP-9 serum concentrations were negatively correlated with forced expiratory volume in 1 s (FEV1), FEV1 as a percentage of the normal predicted value and the ratio of FEV1 to forced vital capacity, and were positively correlated with residual volume (RV), total lung capacity (TLC) and RV/TLC values. In lung tissue and bronchoalveolar lavage fluid samples, MMP-9 and CAP1 expression were inversely related. This relationship was confirmed in HP-AEpiC cells. High expression of MMP-9 and low expression of CAP1 was demonstrated in the COPD group compared with the non-COPD group. Conclusions: This study demonstrated an inverse relationship between CAP1 and MMP-9 expression, and high expression of MMP-9 and low expression of CAP1 in those with COPD compared with the non-COPD group. Overexpression of MMP-9 in lung tissue and its interaction with CAP1 is likely to play a major role in airway obstruction in COPD.

引用

页码：1272 / 1284

页数：13