非小细胞肺癌环氧化酶Ⅱ表达及意义

目的 探讨环氧化酶Ⅱ(COX-2)在非小细胞肺癌(NSCLC)组织中的表达及其与NSCLC发生、发展关系.方法 采用免疫组织化学法检测45例NSCLC组织和癌旁正常组织标本COX-2的表达水平.结果 COX-2在NSCLC组织的表达率为64.4%(26/45),明显高于癌旁正常组织的31.1%(13/45),两者比较差异有统计学意义(P＜0.05).COX-2表达在不同性别、年龄及组织分化间差异无统计学意义(P＞0.05);COX-2表达在腺癌明显高于鳞癌(P＜0.05),直径＞3 cm肿瘤组织明显高于直径≤3 cm肿瘤组织(P＜0.05),有淋巴结转移者明显高于无淋巴结转移者(P＜0.05),TNM分期Ⅲ+Ⅳ期者明显高于Ⅰ+Ⅱ期者(P＜0.05).结论 COX-2参与了肺癌发生、发展过程.

Expression of COX-2 and its clinical significance in non-small cell lung cancer

Objective To explore the expression of cyclooxygenase-2(COX-2) in non-small cell lung cancer (NSCLC) and its relationship with NSCLC development. Methods Expression of COX-2 protein was detected in 45 eases of NSCLC tissues and 45 cases of paracaneerous tissues by immunohistochemistry assay. Results Expression of COX-2 was detected in a significantly greater proportion of NSCLC tissues(64.4 % ) than that of paracancerous tissues(31.1% )(P＜0.05 );expression of COX-2 in different gender, age and tissue differentiation was no significant difference(P＞0.05);expression of COX-2 in adenocarcinoma was obviously higher than that in squamous carcinoma(P＜0.05);expression of COX-2 in the diameter of carcinoma tissue above 3cm was significantly higher than that below 3cm(P＜0.05) ;expression of COX-2 in carcinoma tissue existing lymphnode metastasis was obviously higher than that in non-existing lymphnode metastasis( P＜0.05 );expression of COX-2 in stage Ⅲ+Ⅳ of TNM was significantly higher than stage Ⅰ + Ⅱ of TNM(P＜0.05 ). Conclusion COX-2 was involved in occurrance and development process of lung cancer.