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논문 기본 정보

자료유형
학술저널
저자정보
Kim, Yu-Mi (College of Pharmacy and Research Center for Bioresource and Health, Chungbuk National University) Lee, Jae-Joon (College of Pharmacy and Research Center for Bioresource and Health, Chungbuk National University) Park, Seung-Kook (College of Pharmacy and Research Center for Bioresource and Health, Chungbuk National University) Lim, Sung-Cil (College of Pharmacy and Research Center for Bioresource and Health, Chungbuk National University) Hwang, Bang-Yeon (College of Pharmacy and Research Center for Bioresource and Health, Chungbuk National University) Lee, Chong-Kil (College of Pharmacy and Research Center for Bioresource and Health, Chungbuk National University) Lee, Myung-Koo (College of Pharmacy and Research Center for Bioresource and Health, Chungbuk National University)
저널정보
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 제30권 제7호
발행연도
2007.1
수록면
858 - 865 (8page)

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The effects of tributyltin acetate (TBTA) on dopamine biosynthesis and L-3,4-dihydroxypheny-lalanine (L-DOPA)-induced cytotoxicity in PC12 cells were examined. TBTA at concentrations of 0.1-0.2 ${\mu}M$ inhibited dopamine biosynthesis by reducing tyrosine hydroxylase (TH) activity and TH gene expression in PC12 cells. TBTA at 0.1-0.4 ${\mu}M$ also reduced L-DOPA (20-50 ${\mu}M$)-induced increases in dopamine content for 24 h in PC12 cells. TBTA at concentrations up to 0.3 ${\mu}M$ did not affect cell viability. However, TBTA at concentrations higher than 0.4 ${\mu}M$ caused apoptotic cytotoxicity. Exposure of PC12 cells to non-cytotoxic (0.1 and 0.2 ${\mu}M$) or cytotoxic (0.4 ${\mu}M$) concentrations of TBTA with L-DOPA (20, 50 and 100 ${\mu}M$) significantly increased the cell loss and the percentage of apoptotic cells after 24 or 48 h compared with TBTA or L-DOPA alone. These data suggest that TBTA inhibits dopamine biosynthesis and enhances L-DOPA-induced cytotoxicity in PC12 cells.

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