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RT-PCR扩增MUC1检测胃癌微转移研究
Authors
吴艳环
林岚
+3 more
苏金华
邱达泰
陈瑞川
Publication date
30 September 1999
Publisher
Abstract
目的 以 RT- PCR检测胃周淋巴结胃癌转移细胞并评价其临床应用价值。 方法 以 MUC1c DNA的特异序列为 RT- PCR引物 ,酶切分析法及系列稀释法对该法的特异性和敏感性进行分析 ,对临床收集的胃周淋巴结样品作 RT- PCR检测及产物 DNA点杂交验证。 结果 ( 1)胃及胃癌组织均存在 MUC1m RNA的表达 ;( 2 )该扩增体系具有较好的特异性 ;( 3)敏感性可达 1pgRNA,相当于从 10 5个淋巴细胞中检出 1个胃癌细胞 ;( 4)对临床样品检测的结果显示较病理检查敏感 ,PCR产物点杂交进一步证实 MUC1作为 PCR标志物有较好的可靠性。 结论 该法具有较高的可靠性和较好的应用前景
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Last time updated on 16/06/2016