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Differential expression of proteins in intrahepatic cholangiocarcinoma cell line ICC-9810 and liver cell line L02
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- Author:
- No author available
- Journal Title:
- WORLD CHINESE JOURNAL OF DIGESTOLOGY
- Issue:
- 7
- DOI:
- 10.3969/j.issn.1009-3079.2008.07.015
- Key Word:
- 肝内胆管癌;肝细胞;差异蛋白;表面增强激光解吸离子化
Abstract： 目的:分析肝内胆管癌细胞系ICC-9810与正常肝细胞系L02的蛋白质表达差异,筛选肝内胆管癌的潜在分子标志物.方法:应用表面增强激光解吸离子化(surface enhanced laser desorption/ionization,SELDI)蛋白质芯片技术检测肝内胆管癌及正常肝细胞系的蛋白质谱.用PBSII-C型蛋白质芯片阅读机读取数据,采用Proteinchip Software 3.0.2软件分析数据.结果:IMAC3、WCX2两种蛋白芯片共捕获376个蛋白峰,发现27个差异蛋白.与正常肝细胞系L02蛋白谱相比,9个蛋白在肝内胆管癌细胞系ICC-981O中高表达,18个蛋白在肝内胆管癌细胞系ICC-9810中低表达.其中3767、7999、10555、12163、22066和26794 Da6个差异蛋白可被WCX2和IMAC3芯片共同捕获.结论:肝内胆管癌与正常肝细胞存在差异蛋白表达,这些差异蛋白为寻找肝肿瘤标志物,了解肝内胆管癌的发病机制提供了重要线索.
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