BRCA1和BRCA2在胶东半岛地区女性散发性乳腺癌中的表达研究

目的 探讨BRCA1和BRCA2在胶东半岛地区女性散发性乳腺癌组织中的表达特点及其临床意义.方法 应用组织芯片技术及免疫组织化学方法检测100例胶东半岛地区女性散发性乳腺癌及30例乳腺良性病变组织中BRCA1和BRCA2的表达.结果 ①BRCA1和BRCA2的阳性表达率在乳腺癌组织中分别为49%（49/100）和50%（50/100）;在乳腺良性病变中分别为80%（24/30）、83 33%（25/30）.二者差异有统计学意义（P＜0.05）.②乳腺癌组织中BRCA1和BRCA2的表达与患者年龄、淋巴结转移状况、肿瘤的大小及绝经与否差异均无统计学意义（P＞0.05）.③BRCA1 和BRCA2 在乳腺癌中的表达无相关性.结论 BRCA1和BRCA2在胶东半岛地区散发性乳腺癌组织中的表达明显低于乳腺良性病变,可作为胶东半岛地区散发性乳腺癌监测指标,但在散发性乳腺癌发生发展中的作用是独立的,不具有相关性.

Expression of BRCA1 and BRCA2 in sporadic breast cancer in women of Jiaodong peninsula

Objective To study the expression and clinical significance of BRCA1 and BRCA2 in sporadic breast cancer in women of Jiaodong peninsula. Methods Immunohistochemistry and tissue array were used to detect the expression of BRCA1 and BRCA2 in 100 cases of sporadic breast cancer and 30 cases of benign breast tumor in women of Jiaodong peninsula. Results ① The expression rate of BRCA1 and BRCA2 was 49% (49/100) and 50% (50/100) in breast cancer, 80% (24/30) and 83.33% (25/30) in benign breast lesions respectively. The expression rate of BRCA1 and BRCA2 in breast cancer was lower than that in benign breast lesions (P<0.05). ② The expression of BRCA1 and BRCA2 was uncorrelated with factors such as tumor size, lymphatic metastases, age and menopause or not(P>0.05). ③ There was no dependency between the expression of BRCA1 and BRCA2 (P> 0. 05). Conclusions The expression rate of BRCA1 and BRCA2 in breast carcinoma in women of Jiaodong peninsula was lower than that in benign breast lesions, suggesting that the expression of BRCA1 and BRCA2 was related to the occurrence of sporadic breast carcinoma in women of Jiaodong peninsula. However, the role of BRCA1 and BRCA2 in the genesis and development of the breast carcinoma is independent.