Evaluation of Human CYP1A2 and CYP3A4 mRNA Expression in Hepatocytes from Chimeric Mice with Humanized Liver
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- YOSHITSUGU Hiroki
- Division of Pharmacology, Drug Safety and Metabolism, Otsuka Pharmaceutical Factory, Inc.
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- NISHIMURA Masuhiro
- Division of Pharmacology, Drug Safety and Metabolism, Otsuka Pharmaceutical Factory, Inc.
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- TATENO Chise
- Hiroshima Prefectural Institute of Industrial Science and Technology, CLUSTER
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- KATAOKA Miho
- Hiroshima Prefectural Institute of Industrial Science and Technology, CLUSTER
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- TAKAHASHI Eiji
- PhoenixBio Co., Ltd.
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- SOENO Yoshinori
- PhoenixBio Co., Ltd.
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- YOSHIZATO Katsutoshi
- Hiroshima Prefectural Institute of Industrial Science and Technology, CLUSTER Graduate School of Science, Hiroshima University
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- YOKOI Tsuyoshi
- Division of Drug Metabolism and Toxicology, Faculty of Pharmaceutical Sciences, Kanazawa University
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- NAITO Shinsaku
- Division of Pharmacology, Drug Safety and Metabolism, Otsuka Pharmaceutical Factory, Inc.
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抄録
We investigated and compared the expression of human CYPs mRNA in primary cultures of cryopreserved human hepatocytes and in chimeric mice constructed by transplanting hepatocytes from the same human donors. Analysis was performed by real-time reverse-transcription polymerase chain reaction. Initial expression levels for the 12 human CYPs mRNA in chimeric mouse hepatocytes were higher than those in human hepatocytes, but a low correlation coefficient was observed (r=0.690). After 24 h of culture, the correlation remained low (r=0.699). The medium was replaced with fresh medium without human epidermal growth factor, and after 48 h of culture, expression of the 12 human CYPs mRNA were very similar in human hepatocytes and chimeric mouse hepatocytes, and a higher correlation coefficient was observed (r=0.809). After 72 h of culture, the correlation remained high (r=0.873). The ratio of human CYP1A2 mRNA to β-actin mRNA in chimeric mouse hepatocytes decreased quickly during the first 24 h of culture, and then remained constant. Expression profiles of human CYP1A2 mRNA in chimeric mouse hepatocytes were similar to those in human hepatocytes after exposure of β-naphthoflavone. CYP3A4 mRNA expression was increased significantly by rifampicin (Rif) exposure in human hepatocytes, whereas Rif-induced increases in CYP3A4 mRNA expression in chimeric mouse hepatocytes was seen for two of the three donors. In conclusion, we demonstrated that expression and induction of human CYPs in human hepatocytes can be reproduced in chimeric mouse hepatocytes.<br>
収録刊行物
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- Drug Metabolism and Pharmacokinetics
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Drug Metabolism and Pharmacokinetics 21 (6), 465-474, 2006
日本薬物動態学会
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詳細情報 詳細情報について
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- CRID
- 1390282680156951040
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- NII論文ID
- 10018658929
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- NII書誌ID
- AA1162652X
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- ISSN
- 18800920
- 13474367
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可