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标题：Effects of Dimethyl Sulfoxide on the Gene Induction of Cytochrome P450 Isoforms, UGT-Dependent Glucuronosyl Transferase Isoforms, and ABCB1 in Primary Culture of Human Hepatocytes
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作者：Masuhiro Nishimura ; Nobuhiko Ueda ; Shinsaku Naito 等
期刊名称：Biological and Pharmaceutical Bulletin
印刷版ISSN：0918-6158
电子版ISSN：1347-5215
出版年度：2003
卷号：26
期号：7
页码：1052-1056
DOI：10.1248/bpb.26.1052
出版社：The Pharmaceutical Society of Japan
摘要：We investigated the gene expression of GAPDH, cytochrome P450 isoforms (CYP1A1, CYP1A2, CYP1B1, CYP2A6, CYP2E1, CYP3A4, CYP3A5, and CYP3A7), UGT-dependent glucuronosyl transferase isoforms (UGT1A6 and UGT1A9), and ABC transporter (ABCB1) after exposure to 0.1, 0.5, and 2.5% dimethyl sulfoxide (DMSO). GAPDH mRNA levels after exposure were less than 2 times higher or lower than control levels at all DMSO concentrations. CYP1A1, CYP1B1, CYP2A6, CYP2E1, CYP3A4, CYP3A5, CYP3A7, and UGT1A9 mRNA levels were less than 2 times higher or lower than control levels at 0.1% and 0.5% DMSO. CYP1A2, UGT1A6, and ABCB1 mRNA levels were less than 2 times higher or lower than control levels at all DMSO concentrations. CYP2E1 and CYP3A4 mRNA levels were 2.5—3.2 times and 2.0—3.3 times higher than control levels at 2.5% DMSO, respectively. UGT1A9 mRNA levels were 0.2—0.5 times lower than control levels at 2.5% DMSO. Exposure to β-naphthoflavone reduced CYP1A1 mRNA levels in a concentration-dependent manner for donors 1 and 2. Exposure to β-naphthoflavone reduced CYP1A2 mRNA levels in a concentration-dependent manner for all donors. However, exposure to β-naphthoflavone increased CYP1B1 mRNA levels for donors 2 and 3 at 2.5% DMSO. Exposure to rifampicin reduced CYP3A4 mRNA levels for all donors at 0.5% and 2.5% DMSO. Exposure to rifampicin also reduced CYP3A5 and CYP3A7 mRNA levels for donors 1 and 3 at 0.5% and 2.5% DMSO. In conclusion, a DMSO concentration of 0.1% or less may be appropriate for studying induction after drug exposure.
关键词：gene induction;human hepatocyte;dimethyl sulfoxide (DMSO);cytochrome P450 isoform