乳腺浸润性导管癌组织中环氧合酶-2的表达与细胞增生和血管生成的关系

目的 探讨环氧合酶-2(COX-2)蛋白在乳腺浸润性导管癌组织中的表达及其与细胞增生和微血管密度(MVD)的关系.方法 应用免疫组织化学法检测52例乳腺浸润性导管癌组织中COX-2和Ki-67蛋白的表达情况,用CD34抗体标记乳腺癌血管内皮细胞,计算MVD.结果 乳腺浸润性导管癌组织中COX-2蛋白的阳性表达率为57.7%,COX-2阳性组Ki-67指数为(56.07±17.37)%,COX-2阴性组Ki-67指数为(27.32±16.28)%,COX-2阳性组MVD为32.46±12.59,COX-2阴性组MVD为25.04±10.48,COX-2阳性组Ki-67、MVD显著高于COX-2阴性组(P＜0.05).结论 乳腺浸润性导管癌组织中COX-2蛋白高表达,COX-2可促进肿瘤细胞增生和肿瘤肿瘤血管生成,从而成为促进乳腺癌浸润、转移的途径之一.

Expression of COX-2 in invasive ductal carcinoma of breast and its relationship with cell proliferation and angiogenesis

Objective To study the expression of eyelooxygenase-2(COX-2)in invasive duetal carcinoma of breast and its relationship with cell prolireration and angiogenesis. Methotis Expression of COX-2 and Ki-67 was detected in 52 cages of breast cancer tissue by immunohistochemistry. CD34 marking vascular endothelial cell was used to measure the miemvascular density(MVD).Results The positive COX-2 expression was 57.7%in invasive duetal carcinoma of breast.The Ki-67 index was (56.07±17.37)%in COX-2 positive group while(27.32±16.28)%in the negative group,and the MVD W88 32.46±12.59 in COX-2 positive group while 25.04±10.48 in the negative group.The positive group of COX-2 protein had higher Ki-67 and MVD than that in negative group(P＜0.05).Conclusion The overexpression of COX-2 protein Were found in invasive ductal carcinoma of breast.To stimulate cell prolireration and angiogenesis may be one of the pathways of COX-2 protein to contribute to the invasion and metastasis in human breast cancer.