环氧合酶-2在胃癌组织中的表达及与病理参数的关系

目的：通过研究环氧合酶-2（COX-2）蛋白在胃癌组织中的表达，探讨其在胃癌发生、发展中的作用及与病理参数的关系。方法：应用免疫组织化学SP法检测12例正常胃组织及40例胃癌组织中COX-2的表达。 结果：COX-2在胃癌组织中的表达（87.5%）明显高于正常胃组织（25.0%）（P<0.05)；Ⅲ+Ⅳ期胃癌中COX-2的表达（96.55 %）高于Ⅰ+Ⅱ期胃癌组织63.64%）（P<0.05)；淋巴结转移组COX-2的表达（96.43%）高于无淋巴结转移组（66.67%） （P＜0.05)。结论：COX-2蛋白的阳性表达与胃癌TNM分期及淋巴结转移有关，COX-2的高表达可能参与 了胃癌形成的过程,且与胃癌的侵袭、转移及预后有一定关系。

Expression of cyciooxygenase-2 in gastric carcinoma and its relationship with patho-parameters

Objective To investigate the expression of of cyclooxygenase-2(COX-2) in human gastric carcinoma and to identify the significance of COX2 expression. Methods COX-2 protein expressions were deteced in 12 nomal gastric mucosa and 40 gastric carcinoma tissues by immunohistochemistry.Results The expression of COX-2 in gastric carcinoma tissues(87.5%) was significantly higher than that in normal gastric mucosa(25.0%)(P<0.05).The expression of COX-2 in Ⅲ+Ⅳ stage of gastric carcinoma(96.55%) was higher than that in Ⅰ+Ⅱ stage(63.64%)(P<0.05);the COX-2 expression in lymph node metastasis group(96.43%) was higher than that in non-lymph node metastasis group(66.67%)(P<0.05).Conclusion The expression of COX-2 is related to TNM stages and lymph node metastasis.The expression of COX-2 maybe take part in the progress of gastric carcinoma and related to invasion,metastasis and prognosis.