›› 2002, Vol. 14 ›› Issue (4): 222-225.doi:

• 论著 • 上一篇    下一篇

多种基因突变、蛋白表达异常与乳腺癌发生、发展及预后

李红智1, 王宗敏2, 金龙金1, 董杰影1, 谢丽微2, 杨开颜3   

  1. 1. 温州医学院 生物教研室; 2. 温州医学院第二附属医院 病理科; 3. 温州医学院 病理解剖教研室, 浙江 温州, 325027
  • 收稿日期:2002-01-04 修回日期:2002-05-20 出版日期:2002-10-30 发布日期:2002-10-30
  • 通讯作者: 李红智

THE RELATIONSHIP BETWEEN THE GENE MUTATION,ABNORMAL EXPRESSION AND THE OCCURANCE, DEVELOPMENT, PROGNOSIS OF BREAST CANCER

LI Hong-zhi, WANG Zong-min, JIN Long-jin, etal.   

  1. Department of Biology, Wenzhou Medical College, Wenzhou 325027, China
  • Received:2002-01-04 Revised:2002-05-20 Online:2002-10-30 Published:2002-10-30

摘要: 目的: 探讨乳腺癌p53 基因突变及突变类型与预后的关系,p53 、Bcl-2 、C-erbB-2 、PCNA 和Ki67 表达与乳腺癌变、发展的关系,并比较乳腺癌p53 基因突变与蛋白表达检测结果。方法:应用PCR-SSCP 方法检测45 例乳腺癌的基因突变,应用免疫组化SP 方法检测96 例正常乳腺组织、异型增生和乳腺癌的蛋白表达。结果: 乳腺癌p53 基因突变及突变类型杂合性缺失(LOH) 与不良预后因素(PCNA 高表达,ER、PR 阴性) 显著相关( P < 0. 05 或P < 0. 01) 。乳腺癌变、发展过程(正常乳腺组织异型增生→淋巴结阴性→淋巴结阳性) 的p53 、C-erbB-2 、PCNA 和Ki67 表达率渐增( P < 0. 05 或P < 0. 01) ,而Bcl22 表达率渐减(但P > 0. 05) 。乳腺癌p53 基因突变与蛋白表达检测结果基本吻合。结论:p53 基因突变(尤其是杂合性缺失) 是乳腺癌预后不良的因素和指标。p53 、C-erbB-2 、PCNA 和Ki67 高表达是乳腺癌变、发展的因素和指标,其中C-erbB-2 、PCNA 和Ki67表达的检测对癌前病变的鉴别诊断及恶变可能性估计有指导意义。免疫组化法结果有临床参考价值。

关键词: 乳腺癌, 异型增生, p53, Bcl-2, C-erbB-2, PCNA, Ki67

Abstract: Purpose : To study the relationship between p53 gene mutation and the prognosis of breast cancer ,and the relationship of the expression of p53 , Bcl-2 , C-erbB-2 , PCNA and Ki67 to the occurance , development of breast cancer. Methods : PCR-SSCP and immunohistochemical SP methods were used. Results : The p53 gene mutation and LOH (loss of heterozygosity) coincided with those bad prognostic factors such as high expression of PCNA , absence of ER and PR( P < 0. 05 or P < 0. 01) . The expressions of p53 , C-erbB-2 , PCNA and Ki67 were notably increased in the occurance and development of breast cancer ( P < 0. 05 or P < 0. 01) ,but the expression of bcl-2 decreased. Conclusion : p53 gene mutation (particularly LOH) is bad prognostic factor and marker of breast cancer. The high expressions of p53 , C-erbB-2 , PCNA and Ki67 are the factors and markers of the occurance and development of breast cancer , and particularly , the expressions of C-erbB-2 , PCNA and Ki67 are the indicators of breast carcinogenesis.

Key words: breast cancer, atypical hyperplasia, p53, Bcl-2, C-erbB-2, PCNA, Ki67

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