基质金属蛋白酶8在乳腺癌中的表达及其临床意义

目的 分析基质金属蛋白酶8（MMP-8）在乳腺癌中的表达及其与各临床病理参数间的关系,评估MMP-8的表达与乳腺癌转移的相关性.方法 收集具有完整临床资料的乳腺浸润性导管癌标本50例及癌旁正常乳腺组织标本20例,采用免疫组织化学染色SP法检测原发灶中MMP-8表达情况.结果 50例乳腺癌组织中MMP-8阳性表达率高于正常乳腺组织标本68％（34/50）比15％（3/20）,P＜ 0.05].Ⅰ期乳腺癌MMP-8阳性表达率高于Ⅱ、Ⅲ＋Ⅳ期94％（15/16）、57 ％（13/23）、55％（6/11）,P＜0.05],无淋巴结转移乳腺癌患者MMP-8阳性表达率高于有淋巴结转移者84％（21/25）比50％（13/25）,P＜0.05].结论 MMP-8的表达与乳腺癌的转移相关,MMP-8可能参与抑制乳腺癌的转移.

Expression of matrix metalloproteinase-8 in human breast cancer and its clinical significance

Objective To investigate the expression of matrix metalloproteinase-8 （MMP-8） in human breast cancers and its relationship with the clinicopathological parameters,evaluate the relevance of MMP-8 levels to metastases in breast cancer.Methods Human specimens were obtained from 50 patients with invasive ductal carcinomas,and 20 normal breast glands were enrolled.Intact clinical parameters were aviliable for all patients.The protein expression of MMP-8 was determined by immunohistocbemistry technology SP.Results The rate of MMP-8 positive breast cancer was significantly higher than that in normal breast glands 68 % （34/50） vs 15 % （3/20）,P 〈 0.05].The expression of MMP-8 showed a negative correlation with breast cancer staging.The expression of MMP-8 in stage Ⅰ was higher than that in stage Ⅱ and Ⅲ/Ⅳ94 % （15/16）,57 % （13/23）,55 % （6/11）,P 〈 0.05].Lymph node negative patients had a higher MMP-8 expression than patients with lymph node metastases 84 % （21/25） vs 50 % （13/25）,P 〈 0.05].Conclusion MMP-8 expression is associated with human breast cancer metastases and might be involved in inhibiting metastases.