乳腺癌组织中Survivin和nm23蛋白的表达及其与腋淋巴结转移的关系

目的：探讨凋亡抑制蛋白Survivin和转移抑制蛋白nm23在乳腺癌组织中的表达及与腋淋巴结转移和5年生存率的关系。方法：用免疫组织化学SP法检测80例乳腺癌组织中Survivin，nm23的表达，分析其与腋淋巴结转移和5年无病生存率之间的关系。结果：Survivin蛋白在乳腺癌中阳性表达率为68.75%（55/80），与腋淋巴结转移呈低度正相关（r=0.263，P=0.019），与5年无病生存率呈低度负相关（r=-0.255，P=0.024）；nm23阳性表达率为57.50%（46/80），与腋淋巴结转移呈低度负相关（r=-0.253，P=0.024），与5年无病生存率低度正相关（r=0.235，P=0.037）。Survivin和nm23蛋白表达与肿瘤病理类型、发病年龄、临床分期无明显相关性（P＞0.05）。结论：Survivin蛋白的抑制凋亡作用和nm23蛋白的抑制转移作用可能在乳腺癌的发生、发展过程中起重要作用，联合检测有助于判断乳腺癌的预后。

Expressions of Survivin and nm23 and the relationship among the expressions and the axillary lymph node metastasis in breast cancer

OBJECTIVE: To investigate the expressions of Survivin protein and nm23 protein and the relationship among the expressions and axillary lymph node metastasis in breast cancer. METHODS: The expression of Survivin and nm23 in 80 cases of breast cancer tissues were detected by immunohistochemistry SP method, and their correlation with axillary lymph node metastasis and 5-year disease free survival (DFS) were analysed. RESULTS: Survivin protein positive expression rate was 68.75% (55/80) in breast cancer tissues, which had positive correlation with the axillary lymph nodes metastasis but negative correlation with 5 years FS (P < 0.05); nm23 protein expression had negative correlation with the axillary lymph nodes metastasis but positive to 5 years FS (P < 0.05). Survivin and nm23 proteins expression had no obvious correlation with the breast cancer pathology type, patient age and clinical stage (P > 0.05). CONCLUSION: The anti-apoptosis effect of Survivin protein and the anti-metastasis effect of nm23 protein may be important in the occurrence and advancement of breast cancer, suggesting that it may be a new indicator of prognostic and judgement in breast cancer.