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三阴型乳腺癌中BRCA1的表达及其预后意义

Chinese Journal of Clinical and Experimental Pathology(2015)

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Abstract
目的:探讨乳腺癌易感基因1(breast cancer susceptibility gene 1, BRCA1)蛋白的表达及其对三阴型乳腺癌(triple nega-tive breast cancer, TNBC)患者预后的影响。方法采用免疫组化SP法检测95例TNBC组织蜡块中BRCA1、p53的表达,并结合患者临床病理特征进行相关性分析和预后评价。结果 TNBC中BRCA1的阳性率为31.6%,阳性患者中位年龄较阴性者明显偏小(P=0.047),且p53表达明显升高(P=0.001),阳性者与阴性者的总生存期差异无显著性(HR=1.110,95%CI=0.552~2.235,P=0.769)。结论 BRCA1蛋白表达与TNBC患者发病年龄、p53表达有关,但对患者的预后无明显影响。 p53通路与BRCA1表达在抑制肿瘤生长方面可能存在相关性。
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Key words
breast neoplasm,triple negative breast cancer,breast cancer susceptibility gene 1,immunohistochemistry,outcome
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