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采用色素原位杂交法检测HER2蛋白弱阳性表达乳腺癌患者的基因扩增状态

Chromogenic in situ hybridization in examination of HER2 amplification status in breast cancer specimens with weak HER2 expression
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摘要 目的应用色素原位杂交法(chromogenic in situ hybridization,CISH)检测HER2蛋白弱阳性表达乳腺癌患者的HER2基因扩增状态,为乳腺癌的临床诊治提供依据。方法收集HER2蛋白弱阳性()表达乳腺癌患者石蜡切片标本187例,采用Invitrogen公司的HER2CISHTM检测试剂盒,根据美国临床肿瘤学会/美国病理医师学会推荐标准,分析标本HER2基因状态及其与雌激素受体(ER)、孕激素受体(PR)表达的相关性。结果乳腺癌HER2蛋白弱阳性表达标本HER2基因扩增阳性率为53.48%(100/187),基因扩增阳性者ER、PR阳性表达率分别为44.00%、46.00%;HER2基因扩增阴性率为46.52%(87/187),基因扩增阴性者ER、PR阳性表达率分别为70.73%、78.05%。HER2基因扩增结果与性激素受体(ER、PR)表达明显负相关(P<0.01)。结论 HER2蛋白弱阳性表达乳腺癌患者有必要进一步明确其基因扩增状态,CISH可有效检测此类患者的HER2基因扩增状态。
出处 《第二军医大学学报》 CAS CSCD 北大核心 2010年第10期1141-1143,共3页 Academic Journal of Second Military Medical University
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