The Differential Expression of MMP-9 and Ki67 in Pancreatic Cancer

SUN Yu; SUN Ning; YANG Shaoshi; SONG Guodong; CHEN Jianqiu

doi:10.3969/j.issn.0253-9896.2014.01.014

Abstract：Objective To investigate the expression and significance of MMP-9 and Ki67 for predicting the progres-sion and prognosis of pancreatic cancer. Methods S-P immunohistochemical method was used to detect the expressions of MMP-9 and Ki67 in 100 pancreatic cancer tissue specimens. The relationship between the expressions of MMP-9 and Ki67 and patient age, tumor size, lymph node metastasis, tumor differentiation, clinical stages and prognosis were analyzed. Re-sults There were higher expressions of MMP-9 protein 46%(46/100) and Ki67 protein 53%(53/100) in 100 samples of pancreatic adenocarcinoma. And the expressions of MMP-9 and Ki67 were inversely associated with tumor differentiation, clinical stages, and lymph node metastasis of pancreatic cancer (P<0.05). There were no significant differences in the ex-pressions of MMP-9 and Ki67 between patient age and tumor size. The expressions of MMP-9 and Ki67 were positive corre-lated (rs=0.405,P<0.05). Moreover, the overall survival rates were correlated with patient age, lymph node metastasis, tumor differentiation and the expression of MMP-9, but no correlation with tumor size, clinical stages, and the expression of Ki67. Conclusion The expressions of MMP-9 and Ki67 were associated with pancreatic cancer progression. And the detection of expression of MMP-9 may have practical value in prognosis in patients with pancreatic cancer.