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散发性结直肠癌微卫星不稳定性与临床病理的关系

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摘要 为探讨散发性结直肠癌的微卫星不稳定性及其与肿瘤临床病理特点的关系,应用放射性同位素为基础的聚合酶链式反应(PCR)技术检测了48例散发性结直肠癌中4个位点微卫星不稳定性。结果:(1)48例散发性结直肠癌中4个微卫星位点D2S123,BAT—26,D17S261,D17S799的微卫星不稳定性校出率分别为12.5%(6/48),18.8%(9/48),10.4%(5/48),8.3%(4/48);(2)微卫星不稳定性和肿瘤的部位有关(P<0.05),与分化显著相关(P<0.01),而和肿瘤患者的性别、激巴结转移以及Dukes分期无关(P>0.05)。结果显示:微卫星不稳定性是散发性结直肠癌发生的早期分子改变,是散发性结直肠癌发生的新机制。
出处 《中国肛肠病杂志》 2003年第4期6-8,共3页 Chinese Journal of Coloproctology
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