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BAD、p-BAD及p-AKT蛋白在乳腺癌癌变过程中的表达及意义 被引量:4

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摘要 用免疫组织化学S-P法检测131例乳腺石蜡包埋组织、Western Blotting法检测27例乳腺浸润性导管癌及癌旁乳腺组织中Bcl-xl/Bcl-2相关死亡启动子(BAD)、磷酸化Bcl-xl/Bcl-2相关死亡启动子(p-BAD)、磷酸化丝氨酸/苏氨酸蛋白激酶B(p-AKT)的表达情况,分析三种蛋白在乳腺癌组织中表达的意义及其与临床病理特征间的关系。结果免疫组化结果显示在乳腺癌癌变过程中三种蛋白表达阳性率呈递增趋势,三种蛋白在乳腺普通导管增生和重度不典型增生及原位癌间阳性表达率差异有统计学意义(P值分别为0.022、0.023、0.001);p-BAD蛋白在重度不典型增生及原位癌组与浸润性导管癌组间差异有明显统计学意义(P=0.004)。三种蛋白与乳腺浸润性导管癌患者的年龄、临床分期、肿瘤大小无明显关系,但均与组织学分级相关(P值分别为0.026、0.038、0.026)。p-AKT蛋白表达与腋窝淋巴结转移有关(P值为0.016)。Western Blotting结果显示乳腺癌组织中三种蛋白含量明显高于癌旁组织(P值分别为0.002、0.002、0.003)。在乳腺癌组织中BAD与p-BAD及p-BAD与p-AKT蛋白表达量呈正相关性(P值分别为0.011、0.032)。认为这三种蛋白表达水平可提示乳腺导管非典型增生向乳腺癌的转化潜能;PI3-K/Akt传导路径在乳腺癌癌变过程中具有重要作用。
出处 《山东医药》 CAS 北大核心 2007年第5期63-65,共3页 Shandong Medical Journal
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