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Identification of complex chromosome abnormalities in esophageal carcinoma cells KYSE450 by multicolor fluorescence in situ hybridization
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- Author:
- No author available
- Journal Title:
- WORLD CHINESE JOURNAL OF DIGESTOLOGY
- Issue:
- 8
- DOI:
- 10.3969/j.issn.1009-3079.2006.08.002
- Key Word:
- 多色荧光原位杂交;食管癌细胞系;核型;食管癌
Abstract： 目的:应用12色荧光原位杂交技术(multicolor fluorescence in situ hybridization,M-FISH)鉴定食管癌细胞系KYSE450的染色体畸变.方法:采用DOP-PCR(degeneeate oligonucleotide primer-polymerase chain reaction)法混合标记两组多色painting探针,先后两次杂交到相同的KYSE450染色体片,结合反相DAPI显带技术进行核型分析.结果:成功地建立了一种重复的12色荧光原位杂交技术,并鉴定出KYSE450中存在的畸变染色体.该细胞系共有54条染色体,只有13,21和X号染色体是正常的,其余21条染色体均表现异常.1,2,3,5,6,8,9,14,15,16和17号染色体部分区带增益,4和18号染色体部分区带缺失.7,11,12和19号染色体同时存在区带增益和其它部分区带缺失.1,2,3,4,5,6,7,8,9,11,12,14,15,16,17,18和19号染色体显示有易位.22号染色体丢失1条,未检测到10,20,Y染色体成分.结论:12色荧光原位杂交可用于鉴定肿瘤中复杂的染色体异常.KYSE450存在较多与原发性食管鳞癌一致的染色体改变.
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