不同分子分型的hr阴性乳腺癌临床病理特征及预后的研究
Keywords: hr阴性乳腺癌,号分子分型,号基底细胞样型,号基底样-her2过表达型,号预后
Abstract:
?目的:探讨激素受体(hormonereceptor,hr)阴性浸润性乳腺癌的分子分型情况,以及不同分子分型的临床病理特征和预后?方法:应用组织芯片技术及免疫组化将所选200例hr阴性[包括雌激素受体(estrogenreceptor,er)和孕激素受体(progesteronereceptor,pr)均为阴性]浸润性乳腺癌,依据her2及基底细胞标记[包括细胞角蛋白5/6(cytokeratin5/6,ck5/6),细胞角蛋白14(cytokeratin14,ck14)及上皮生长因子受体(epidermalgrowthfactorreceptor,egfr)]表达情况,分为以下类型:her2过表达型、基底细胞样型及裸型;her2过表达型又分两类亚型:单纯性her2过表达型、基底细胞样-her2过表达型;比较不同分子分型乳腺癌的病理特征及预后。结果:hr阴性乳腺癌具有病理分级高,临床分期晚,发病年龄近绝经期等特点,各分型间差异无统计学意义;基底细胞样-her2过表达型远处转移率高于基底细胞样型(p<0.05),其5年无病生存率及5年总生存率低于各分型(p<0.05)。结论:基底细胞样型并非影响乳腺癌预后的独立因素,基底细胞样-her2过表达型乳腺癌较基底细胞样型具有更差的预后情况。
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