한국독성학회:학술대회논문집 (Proceedings of the Korean Society of Toxicology Conference)
- 한국독성학회 2002년도 Molecular and Cellular Response to Toxic Substances
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- Pages.138-138
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- 2002
G1 CELL CYCLE ARREST OF KG-1, A HUMAN ACUTE LEUKEMIA CELLS, BY 8-HYDROXYDEOXYGUANOSINE OCCURS THROUGH BLOCKADE OF THE EXTRACELLULAR SIGNAL REGULATED KINASE PATHWAY
- Hyun, Jin-Won (Department of Biochemistry, College of Medicine Cheju National University) ;
- Yoon, Sun-Hee (Department of Pharmacology, College of Medicine Seoul National University) ;
- Yoon, Byung-Hak (Department of Pharmacology, College of Medicine Seoul National University) ;
- Chung, Myung-Hee (Department of Pharmacology, College of Medicine Seoul National University)
- 발행 : 2002.11.01
초록
8-hydroxydeoxyguanosine (oh8dG) potently inhibits proliferation of KG-1, a human leukemia cell line in vitro, but little is known regarding to molecular mechanisms mediating this effect. Here we demonstrate that treatment of KG-1, deficient in 8-oxoguanine glycosylase (OGG1) activity, with oh8dG lead to G1 arrest associated with a dramatic decrease in the levels of cyclin D3 and cyclin-dependent kinase 4 (cdk4) and accompanied by an increase in the expression of p21.(omitted)