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题目:: Differences in gene expression profiles and carcinogenesis pathways between colon and rectal cancer.
作者:: Li(Jing Nan),Zhao(Li),Wu(Jun),Wu(Bin),Yang(Hong),Zhang(Heng Hui),Qian(Jia Ming)
状态:: 发布时间2011-12-22 , 更新时间 2011-12-22
期刊:: J Dig Dis
摘要:: Colon cancer is more common in the USA and Europe than that in China, for reasons that are unclear. The aim of this study was to investigate the differences in gene expression profiles and carcinogenesis pathways between colon and rectal cancer.,Expression profiling of primary tumor tissues from 12 colon and 12 rectal cancers was performed using oligonucleotide microarray analysis. All samples were strictly matched by clinical features. Bioinformatic analyses such as the Kyoto Encyclopedia of Genes and Genomes were used to identify genes and pathways specifically associated with colon or rectal cancers.,A total of 824 genes were differentially expressed in colon and rectal cancers. All differential gene interactions in the Signal-Net were analyzed. More genes were differentially expressed and included in the Signal-Net for rectal than colon cancer. Of the genes differentially expressed between colon and rectal cancer, S100P, the Reg family, ACTN1, CAMK2G and ACAT1 were the most significantly altered. Genes involved in the cell cycle pathway were present in rectal and colon cancers, but were more important in rectal cancer. The p53 and metabolic signaling pathways were significantly different in colon and rectal cancers. Gene expression profiles differed between colon and rectal cancer, with metabolic pathways being more important in rectal cancer.,The oncogenesis of rectal cancer may be more complex than that of colon cancer. Some genes could be new biomarkers for distinguishing between these two cancers.
语言:: eng
DOI:: 10.1111/j.1751-2980.2011.00551.x

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