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Smac和Ki-67在肝外胆管异型增生组织和癌组织中的表达及意义

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摘要 目的探讨Smac和Ki-67在肝外胆管癌发生发展中的作用和临床意义。方法用免疫组化S-P法检测27例肝外胆管癌组织、10例异型增生组织和5例正常肝外胆管上皮组织中Smac和Ki-67的表达。结果Smac在正常肝外胆管上皮组织、异型增生组织和癌组织中阳性表达率分别为40%、50%和85.2%,异型增生组织和癌组织中Smac表达差异有统计学意义(P=0.041)。Ki-67在正常肝外胆管上皮组织、异型增生组织和癌组织中阳性表达率分别为0、40%和81.5%,正常肝外胆管上皮组织和癌组织中表达差异无统计学意义(P=0.001),异型增生组织和癌组织中表达差异有统计学意义(P=0.038)。Smac和Ki-67在异型增生组织和癌组织的表达呈正相关性(r=0.688,P=0.028)。Smac和Ki-67的表达与肝外胆管癌组织病理学特征和临床分期无关。结论Smac和Ki-67参与了肝外胆管癌的发生发展,凋亡和增殖失衡在其过程中起重要作用,Smac和Ki-67可能在异型增生向癌的恶性转化阶段起重要作用。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2009年第19期2443-2445,共3页 Chinese Journal of Gerontology
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