Expressions of MMP-2, MMP-7 and TIMP-2 in lung carcinoma and their significance / 第三军医大学学报

ABSTRACT

Objective To investigate the expressions of matrix metalloproteinase 2 (MMP 2), matrix metalloproteinase 7 (MMP 7), and tissue inhibitor of matalloproteinase 2 (TIMP 2) in lung carcinoma tissue and their significance Methods The expressions of MMP 2, MMP 7, and TIMP 2 in 74 cases of lung carcinoma tissues and 20 cases of peri cancerous normal lung tissues were detected by immunohistochemical method, and the correlation between the expressions of these proteins and the clinicopathological parameters and the prognosis was analyzed Results MMP 2 and MMP 7 expressions in lung carcinoma tissues were significantly higher than those in peri cancerous normal lung tissues ( P 0 05), and the expression of TIMP 2 was significantly lower in lung carcinomas with lymph node metastasis than that in lung carcinomas without lymph node metastasis ( P