首都医科大学学报 ›› 2009, Vol. 30 ›› Issue (1): 93-96.

• 临床研究 • 上一篇    下一篇

荧光原位杂交法检测乳腺癌HER-2/neu表达及临床意义

俞巍1, 谷俊朝2, 徐秀红2, 宋茂民1, 白庆阳2, 刘建中2   

  1. 1. 首都医科大学附属北京天坛医院普通外科;2. 首都医科大学附属北京友谊医院普通外科
  • 收稿日期:2008-01-18 修回日期:1900-01-01 出版日期:2009-02-21 发布日期:2009-02-21
  • 通讯作者: 谷俊朝

Determination of HER-2/neu Gene Expression in the Tissue of Breast Cancer by FISH and Its Clinicopathological Implications

Yu Wei1, Gu Junchao2, Xu Xiuhong2, Song Maomin1, Bai Qingyang2, Liu Jianzhong2   

  1. 1. Department of General Surgery, Beijing Tiantan Hospital, Capital Medical University;2. Department of General Surgery, Beijing Friendship Hospital, Capital Medical University
  • Received:2008-01-18 Revised:1900-01-01 Online:2009-02-21 Published:2009-02-21

摘要: 目的 探讨用荧光原位杂交 (fluorescent in situ hybridization,FISH)方法检测乳腺癌HER-2/neu基因表达的临床意义。方法 应用FISH法对2008年1月至2008年7月在首都医科大学附属北京天坛医院就诊的33例女性新发乳腺癌患者进行HER-2/neu基因检测,分析基因表达程度与临床病理特征之间的关系,比较基因和免疫组化(IHC)法蛋白表达的差别。结果 33位受试者中HER-2/neu基因过表达率为39.4%,其过表达与肿瘤大小、绝经与否、临床分期之间差异无统计学意义(P>0.05)。该基因在有腋淋巴结转移组显著高于无淋巴结转移组(P<0.05),ER阴性组高于ER阳性组,差异有统计学意义(P<0.01)。PR阴性组与阳性组间差异无统计学意义。P53基因阳性组显著高于阴性组(P<0.05)。HER-2/neu基因过表达者11例为免疫组化HER-2蛋白强阳性病例;2例为中度阳性病例。结论 FISH技术可稳定检测乳腺癌中HER-2/neu基因的表达程度,其过表达与绝经与否、肿瘤大小、临床分期无关,与腋淋巴结转移和P53基因表达成正相关,与ER呈密切负相关。HER-2蛋白高强度表达(3+)与基因扩增有极好的一致性,而中等强度表达(2+)必须进一步行FISH法基因检测。

关键词: 乳腺癌, HER-2/neu基因, 荧光原位杂交技术

Abstract: Objective To explore overexpression of HER-2/neu gene by fluorescence in situ hybridization(FISH) in breast cancer and explore the clinical implications. Methods HER-2/neu gene in 33 cases with kainogeneous female breast cancer was detected by FISH from January 2008 up to now, and the relationship between HER-2/neu gene overexpression with clinical and pathological characters investigated. Results HER-2/neu gene expression rate was 39.4%. The overexpression was not correlated with tumor size, menostasis and clinical tumor stage(P>0.05). It was positively correlated with axillary lymph node status(P<0.05) and P53 gene(P<0.05); and negatively correlated with ER(P<0.01), but not correlated with PR(P>0.05). The overexpression cases with HER-2/neu gene showed 11 strongly and 5 moderately positive expression of HER-2 protein by immunohistochemistry. Conclusion FISH technique could detect the overexpression of HER-2/neu gene in breast cancer. It has favourable concordance with strongly positive expression of HER-2 protein(3+), but in the of moderately positive cases, FISH must be applied.

Key words: breast cancer, HER-2/neu gene, fluorescent in situ hybridization

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