Novel target genes of hepatocellular carcinoma identified by chip-based functional genomic approaches

Kim, Dong-Min; Min, Sang-Hyun; Lee, Dong-Chul; Park, Mee-Hee; Lim, Soo-Jin; Kim, Mi-Na; Han, Sang-Mi; Jang, Ye-Jin; Yang, Suk-Jin; Jung, Hai-Yong; Byun, Sang-Soon; Lee, Jeong-Ju; Oh, Jung-Hwa

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자료유형: 학술대회자료

저자정보: Kim, Dong-Min (Functional Genomics Research Center, Korea Research Institute of Bioscience & Biotechnology) Min, Sang-Hyun (Functional Genomics Research Center, Korea Research Institute of Bioscience & Biotechnology) Lee, Dong-Chul (Functional Genomics Research Center, Korea Research Institute of Bioscience & Biotechnology) Park, Mee-Hee (Functional Genomics Research Center, Korea Research Institute of Bioscience & Biotechnology) Lim, Soo-Jin (Functional Genomics Research Center, Korea Research Institute of Bioscience & Biotechnology) Kim, Mi-Na (Functional Genomics Research Center, Korea Research Institute of Bioscience & Biotechnology) Han, Sang-Mi (Functional Genomics Research Center, Korea Research Institute of Bioscience & Biotechnology) Jang, Ye-Jin (Functional Genomics Research Center, Korea Research Institute of Bioscience & Biotechnology) Yang, Suk-Jin (Functional Genomics Research Center, Korea Research Institute of Bioscience & Biotechnology) Jung, Hai-Yong (Functional Genomics Research Center, Korea Research Institute of Bioscience & Biotechnology) Byun, Sang-Soon (Functional Genomics Research Center, Korea Research Institut) Lee, Jeong-Ju Oh, Jung-Hwa

저널정보: 한국생물정보시스템생물학회 한국생물정보시스템생물학회 학술대회 한국생물정보시스템생물학회 2006년도 Principles and Practice of Microarray for Biomedical Researchers

발행연도: 2006.1

수록면: 83 - 89 (7page)

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Cellular functions are carried out by a concerted action of biochemical pathways whose components have genetic interactions. Abnormalities in the activity of the genes that constitute or modulate these pathways frequently have oncogenic implications. Therefore, identifying the upstream regulatory genes for major biochemical pathways and defining their roles in carcinogenesis can have important consequences in establishing an effective target-oriented antitumor strategy We have analyzed the gene expression profiles of human liver cancer samples using cDNA microarray chips enriched in liver and/or stomach-expressed cDNA elements, and identified groups of genes that can tell tumors from non-tumors or normal liver, or classify tumors according to clinical parameters such as tumor grade, age, and inflammation grade. We also set up a high-throughput cell-based assay system (cell chip) that can monitor the activity of major biochemical pathways through a reporter assay. Then, we applied the cell chip platform for the analysis of the HCC-associated genes discovered from transcriptome profiling, and found a number of cancer marker genes having a potential of modulating the activity of cancer-related biochemical pathways such as E2F, TCF, p53, Stat, Smad, AP-1, c-Myc, HIF and NF-kB. Some of these marker genes were previously blown to modulate these pathways, while most of the others not. Upon a fast-track phenotype analysis, a subset of the genes showed increased colony forming abilities in soft agar and altered cell morphology or adherence characteristics in the presence of purified matrix proteins. We are currently analyzing these selected marker genes in more detail for their effects on various biological Processes and for Possible clinical roles in liver cancer development.

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