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FISH检测乳腺癌石蜡组织切片酶消化时间的优化 被引量:3

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摘要 荧光原位杂交(fluorescence in situ-hybridization, FISH)作为20世纪80年代末在原有的放射性原位杂交技术的基础上发展起来的非放射性原位杂交技术,通过直接或间接将荧光标记DNA特异性探针与靶细胞中同源序列的核酸杂交,实现对目的DNA片段或基因的定量和定位分析,目前被人们普遍认为是检测Her-2基因是否活化的"金标准".但同其它检测技术一样,FISH技术检测乳腺癌Her-2基因也会受到诸多因素的影响.如切片本身的因素(最初组织的处理、固定情况、石蜡包埋的过程以及样本的年限等)[1]和石蜡包埋切片的处理因素(酶的浓度及消化时间、溶液pH值及酸碱度、变性条件、杂交后洗涤、结果判读以及操作者的经验)等.实验过程中酶的消化是帮助探针与标本DNA结合,提高杂交率和增强信号的关键环节,其消化好坏程度直接影响到后续实验的进行.
出处 《临床与实验病理学杂志》 CAS CSCD 北大核心 2012年第9期1058-1060,共3页 Chinese Journal of Clinical and Experimental Pathology
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参考文献11

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二级参考文献43

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