Expression of matrix metalloproteinase-1 and tissue inhibitor of metalloproteinase-1 in pathologic synovial plicae of the knee joint
- VernacularTitle:金属蛋白酶-1和组织金属蛋白酶抑制因子-1在膝关节病理性滑膜皱襞中的表达及意义
- Author:
Kuanxin LI
;
Chenhui SHI
;
Yongming WANG
- Publication Type:Journal Article
- Keywords:
Matrix metalloproteinase-1;
Synovial plica;
Knee joint
- From:Chinese Journal of Minimally Invasive Surgery
2005;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore whether or not the cartilage damage in the pathogenesis of pathologic synovial plicae is due to the matrix metalloproteinase. Methods The immunohistochemical method was used to detect the expression and distribution of matrix metalloproteinase-1(MMP-1) and tissue inhibitor of metalloproteinase-1(TIMP-1) in arthroscopically clarified pathologic synovial plicae and normal synovial plicae of the knee joint.Results The positive expression rate of MMP-1 and TIMP-1 had significant differences between the pathologic and normal synovial plicae(?~2=16.014,P=0.000;?~2=4.059,P=0.044).The expression of MMP-1 was positive in the synovial lining cells,monocytes,lymphocytes,endothelial cells,and chondrocytes,but negative in the normal synovial plicae.The TIMP-1 expression was only detected in the synovial lining cells and a small quantity of fibroblast cells.The immunohistochemical analysis revealed a greater number of positive cells and intensity of staining of MMP-1 than TIMP-1.Conclusions The development of pathologic synovial plicae may yield MMP-1 and TIMP-1 with unbalanced distributions,which may be the biological basis of the pathogenesis of cartilage destruction.
