基质金属蛋白酶9及其抑制剂在慢性阻塞性肺疾病发病中的作用

被引：20

作者：

许小毛

孙铁英

林嘉滨

张洪胜

机构：

[1] 卫生部北京医院呼吸科,卫生部北京医院呼吸科,卫生部北京医院呼吸科,卫生部北京医院呼吸科,,,

来源：

中华医学杂志 | 2003年 / 13期

关键词：

基质金属蛋白酶; 金属蛋白酶组织抑制剂; 肺疾病,阻塞性;

D O I：

暂无

中图分类号：

R563.9 [其他];

学科分类号：

摘要：

目的　探讨基质金属蛋白酶 9(MMP 9)及其基质金属蛋白酶组织抑制剂 1(TIMP 1)在慢性阻塞性肺疾病 (COPD)发病机制中的作用。方法　选择COPD稳定期组 12例、COPD急性加重期组 12例、COPD急性加重期 +糖皮质激素治疗组 12例和正常对照组 12例患者 ,采用逆转录聚合酶链的方法测定各组患者外周血单个核细胞中MMP 9和TIMP 1mRNA的表达 ,同时用明胶图谱法测定血浆中MMP 2 ,9的蛋白质水平 ,并分析其与肺功能的关系。结果　 (1)COPD各组MMP 9mRNA表达水平和MMP 9/TIMP 1的比值增加 ,与正常组相比 ,差异具有显著性 (P <0 0 5 ) ,而COPD各组间表达差异无显著性 (P >0 0 5 )。 (2 )COPD各组血浆中MMP 9蛋白水平增加 ,高于正常组 (P <0 0 5 ) ,而COPD各组间蛋白质水平差异无显著性 (P >0 0 5 )。 (3)COPD组中MMP 9mRNA的表达、MMP 9/TIMP 1比值及血浆中MMP 9蛋白质水平与FEV 1 0%占正常预计值呈负相关 (r =- 0 789,P <0 0 5 ;r =- 0 5 3,P <0 0 5 ;r =- 0 6 5 2 ,P <0 0 5 ) ,与RV/TLC %呈正相关 (r =0 375 ,P <0 0 5 ;r =0 4 4 ,P <0 0 5 ;r =0 5 2 9,P <0 0 5 )。结论　MMP 9和MMP 9/TIMP 1比例失衡在COPD的发病机制中起到了一定的作用 ,并与FEV1 0 %占正常预计值、RV/TLC %呈相关性。

引用

页码：30 / 33

页数：4

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