Functional Gene Analysis to Identify Potential Markers Induced by Benzene in Two Different Cell Lines, HepG2 and HL-60

Kim, Youn-Jung; Song, Mi-Kyung; Sarma, Sailendra Nath; Choi, Han-Saem; Ryu, Jae-Chun

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자료유형: 학술저널

저자정보: Kim, Youn-Jung (Cellular and Molecular Toxicology Laboratory, Korea Institute of Science & Technology) Song, Mi-Kyung (Cellular and Molecular Toxicology Laboratory, Korea Institute of Science & Technology) Sarma, Sailendra Nath (Cellular and Molecular Toxicology Laboratory, Korea Institute of Science & Technology) Choi, Han-Saem (Cellular and Molecular Toxicology Laboratory, Korea Institute of Science & Technology) Ryu, Jae-Chun (Cellular and Molecular Toxicology Laboratory, Korea Institute of Science & Technology)

저널정보: 대한독성유전단백체학회 Molecular & cellular toxicology Molecular & cellular toxicology 제4권 제3호

발행연도: 2008.1

수록면: 183 - 191 (9page)

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Volatile organic compounds (VOCs) are common constituents of cleaning and degreasing agents, paints, pesticides, personal care products, gasoline and solvents. And VOCs are evaporated at room temperature and most of them exhibit acute and chronic toxicity to human. Benzene is the most widely used prototypical VOC and the toxic mechanisms of them are still unclear. The multi-step process of toxic mechanism can be more fully understood by characterizing gene expression changes induced in cells by toxicants. In this study, DNA microarray was used to monitor the expression levels of genes in HepG2 cells and HL-60 cells exposed to the benzene on IC20 and IC50 dose respectively. In the clustering analysis of gene expression profiles, although clusters of HepG2 and HL-60 cells by benzene were divided differently, expression pattern of many genes observed similarly. We identified 916 up-regulated genes and 1,144 down-regulated genes in HepG2 cells and also 1,002 up-regulated genes and 919 down-regulated genes in HL-60 cells. The gene ontology analysis on genes expressed by benzene in HepG2 and HL-60 cells, respectively, was performed. Thus, we found some principal pathways, such as, focal adhesion, gap junction and signaling pathway in HepG2 cells and toll-like receptor signaling pathway, MAPK signaling pathway, p53 signaling pathway and neuroactive ligand-receptor interaction in HL-60 cells. And we also found 16 up-regulated and 14 down-regulated commonly expressed total 30 genes that belong in the same biological process like inflammatory response, cell cycle arrest, cell migration, transmission of nerve impulse and cell motility in two cell lines. In conclusion, we suggest that this study is meaningful because these genes regarded as strong potential biomarkers of benzene independent of cell type.

#Volatile organic compounds #VOCs) #Benzene #Microarray #Gene ontology

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