• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Transcriptional regulation of the CYP3A7 gene specifically expressed in the human fetal liver.

Research Project

Project/Area Number 12470491
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biological pharmacy
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

KAMATAKI Tetsuya  HOKKAIDO Univ., Grad.School of Pharmaceu.Sci, Prof., 大学院・薬学研究科, 教授 (00009177)

Co-Investigator(Kenkyū-buntansha) YAMAZAKI Hiroshi  HOKKAIDO Univ., Grad.School of Pharmaceu.Sci, Asso.Prof., 大学院・薬学研究科, 助教授 (30191274)
藤田 健一  北海道大学, 大学院・薬学研究科, 助手 (60281820)
有吉 範高  北海道大学, 大学院・薬学研究科, 助教授 (00243957)
高橋 芳樹  北海道大学, 大学院・薬学研究科, 助手 (80292019)
Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥12,500,000 (Direct Cost: ¥12,500,000)
Fiscal Year 2002: ¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 2001: ¥4,000,000 (Direct Cost: ¥4,000,000)
Fiscal Year 2000: ¥6,100,000 (Direct Cost: ¥6,100,000)
KeywordsP450 / CYP3A7 / fetal toxicity / development / gene regulation / transgenic mouse / p53 / C / EBPα / 胎児 / CYP3A5 / CYP3A4 / ヒト肝 / 発現調節 / 個人差 / 時期特異的発現調節 / サルモネラ菌
Research Abstract

CYP3A7 is a major P450 isoform in the human fetal liver and is involved in the metabolism of endogenous hormones such as dehydroepiandrosterone 3-sulfate and retinoic acids. This enzyme also bioactivates some carcinogens including aflatoxin B_1. Interestingly, the expression of CYP3A7 in the liver disappears after birth. The aim of this study is to elucidate the molecular mechanism responsible for the fetus-specific expression of the human CYP3A7 gene. By using human hepatoma HepG2 cells with characteristics of fetal hepatocytes and a transgenic mouse carrying EGFP reporter gene driven by the CYP3A7 promoter, we identified a novel enhancer designated as 3A7κB that confered the fetus-specific activation of the CYP3A7 gene. In HepG2 cells, tumor suppresser protein p53 bound to the 3A7κB enhancer and stimulated the CYP3A7 gene transcription. In adult hepatocytes, however, C/EBPα, which is involved in the growth-arrest and the terminal differentiation of hepatocytes, repressed the p53-mediated activation. Thus, we conclude that the fetus-specific expression of the CYP3A7 gene is controlled by the antagonistic action between p53 and C/EBPα.

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (37 results)

All Other

All Publications (37 results)

  • [Publications] Matsumura, K. et al.: "Identification of a novel polymorphic enhancer of the human CYP3A4 gene"Mol.Pharmacol.. 65. 326-334 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Takeuchi, H. et al.: "Pretreatment with methoxsalen, a potent human CYP2A6 inhibitor, strongly inhibits lung tumorigenesis induced by NNK in female A/J mice"Cancer Res.. 63. 7581-7583 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Toide, K. et al.: "Aryl hydrocarbon hydroxylase represents CYP1B1, and not CYP1A1, in human freshly isolated white cells : Trimodal distribution of Japanese population"Cancer Epidemiol.Biomarkers Prev.. 12. 219-222 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Topcu, Z. et al.: "CYP2A6 gene deletion reduces oral cancer risk in betel quid chewers in Sri Lanka"Carcinogenesis. 23. 595-598 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Saito, T. et al.: "Novel transcriptional regulation of the human CYP3A7 gene by specificity protein (Sp) 1 and sp3 through nuclear factor-κB-like element"J.Biol.Chem.. 276. 38010-38022 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Iwano, S. et al.: "Cooperative regulation of CYP3A5 gene transcription by NF-Y and Sp family members"Biochem.Biophys.Res.Commun.. 286. 55-60 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 鎌滝哲也ら: "ヒト型代謝酵素発現モデル-ヒトP450発現トランスジェニックマウス"ヒト型モデル動物. (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Nukaya, M. et al.: "Aryl hydrocarbon hydroxylase receptor-mediated suppression of GH receptor and janus kinase 2 expression in mice"FEBS Letter. 558. 96-100 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yamazaki, H. et al.: "Effects of the dietary supplements, active charcoal and copper chloropfyllin, on urinary excretion of trimethylamine in Japanese trimethylaminurea patients"Life Sci.. 74. 2739-2747 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Matsumura, K. et al.: "Identification of a novel polymorphic enhancer of the human CYP3A4 gene"Mol.Pharmacol.. 65. 326-334 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Takeuchi, H. et al.: "Pretreatment with methoxsalen, a potent human CYP2A6 inhibitor, strongly inhibits long tumorigenesis induced by NNK in female A/J mice"Cancer Res.. 63. 7581-7583 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kiyotani, K. et al.: "Decreased coumarin 7-hydroxylase activities and CYP2A6 expression levels in humans caused by genetic polymorphism in CYP2A6 promoter (CYP2A6^*9)"Pharmacogenetics. 13. 689-695 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Toide, K. et al.: "Aryl hydrocarbon hydroxylase represents CYP1B1, and not CYP1A1, in human freshly isolated white cells Trimodal distribution of Japanese population"Cancer Epidemiol.Biomarkers Prev.. 12. 219-222 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ariyoshi, N. et al.: "Genetic polymorphism of CYP2A6 gene and tobacco-induced lung cancer risk in male smokers"Cancer Epidemiol.Biomarkers Prev.. 11. 890-894 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ozeki, T. et al.: "Hepatocyte nuclear factor (HNP)-4α/γ, HNP-1α and vHNF-1 regulate the cell-specific expression of the human dihydrodiol dehydrogenase (DD) 4 / AKRIC4 gene"Archives Biochem.Biophys.. 405. 185-190 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Toide, K. et al.: "Hepatocyte nuclear factor-1α is a causal factor responsible for interindividual differences in the expression of UDP-glucuronosyltransferase 2B7 mRNA in human livers"Durg Metab.Dispos.. 30. 613-615 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Topcu, Z. et al.: "CYP2A6 gene deletion reduces oral cancer risk in betel quid chewers in Sri Lanka"Carcinogenesis. 23. 595-598 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Fujita, K. et al.: "Role of human cytochrome P450 (CYP) in the metabolic activation of N-alkyl-nitrosamine : application of genetically engineered salmonella typhimurium YG7108 expressing each form of CYP together with human NADPH-cytochrome P450 reductase"Mutat.Res.. 483. 35-41 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Saito, T. et al.: "Novel transcriptional regulation of the human CYP3A7 gene by specificity protein (Sp) 1 and sp3 through nuclear factor-κB-like element"J.Biol.Chem.. 276. 38010-38022 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Iwano, S. et al.: "Cooperative regulation of CYP3A5 gene transcription by NF-Y and Sp family members"Biochem.Biophys.res.Commun.. 286. 55-60 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Toide, K. et al.: "Aryl hydrocarbon hydroxylase represents CCYP1B1, and not CYP1A1, in human freshly isolated white cells : Trimodal distribution of Japanese population"Cancer Epidemiol. Biomarkers Prev.. (In press).

    • Related Report
      2002 Annual Research Report
  • [Publications] Kanamori, Y. et al.: "Large-scale Production of genetically engineered CYP3A4 in E. coli Application of a jarfermenter"Drug Metabol. Pharmacokin.. (In press).

    • Related Report
      2002 Annual Research Report
  • [Publications] Ozeki, T. et al.: "Hapatocyte nuclear factor(HNF)-4α/γ and HNF-1α as casual factors of interindividual difference in the expression of human dihydrodiol dehydrogenase (DD) 4mRNA in human livers"Pharmacogonetics. 13. 49-53 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Ariyoshi, N. et al.: "Genetic polymorphism of CKP2A6 gene and tobacco-induced lung cancer risk in male smokers"Cancer Epidemiol. Biomarkers Prev.. 11. 890-894 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Ozeki, T. et al.: "Hepatocyte nuclear factor (HNF)-4α/γ, HNF-1α and vHNF-1 regulate the cellspecific expression of the human dihydrodiol dehydrogenase (DD) 4 /AKR1C4 gene"Archives Biochem. Biophys.. 405. 185-190 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Topcu, Z. et al.: "CYP2A6 gene deletion reduces oral cancer risk in betel quid chewers in Sri Lanka"Carcinogenesis. 23. 595-598 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 鎌滝哲也: "Annual Review 呼吸器 2002"Carcinogenesisにおける個体差. 6 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Fujita, K. et al.: "Predicting the Mutagenicity of Tobacco-related N-Nitrosamines in Humans Using Eleven Strains of Salmonella Typhimurium YG7108 Each Co-expressing a Form of Human Cytochrome P450 with NADPH-cytochrome P450 Reductase"Environ.Mol.Mutagen.. 38. 339-346 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Fujita, K. et al.: "Construction of Salmonella typhimurium YG7108 strains, each coexpressing a form of human cytochrome P450 with NADPH-cytochrome P450 reductase"Environ.Mol.Mutagen.. 38. 329-338 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Fujita, K. et al.: "Screening of organosulfur compounds as inhibitors of human CYP2A6"Drug Metab.Dispos. 29. 983-989 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Fujita, K. et al.: "Role of Human Cytochrome P450 (CYP) in the Metabolic Activation of N-alkylntrosamines : Application of Genetically Engineered Salmonella Typhimurium YG7108 Expressing Each Form of CYP Together with Human NADPH-cytochrome P450 Reductase"Mutat. Res.. 483. 35-41 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Ariyoshi N. et al.: "Comparison of the Levels of Enzymes Involved in Drug Metabolism between Transgenic or Gene-knockout and the Parental Mice"Toxicologic Pathology. 29. 161-172 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Ariyoshi N., et al.: "A single nucleotide polymorphism of CYP2B6 found in Japanese enhances catalytic activity by autoactivation"Biochem. Biophys. Res. Commun. 281. 1256-1260 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 鎌滝 哲也: "人類とバイオ-ナノ・バイオへの期待-"東京テクノ・フォーラム21事務局、東京. 30 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Eri lnoue, Tetsuya Kamataki et al.: "Development of bacterial expression system with high yield of CYP3A7, a human fetus-specific form of Cytochrome P450"Biochem.Biophys.Res.Commun.. 269(2). 623-627 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Taisei Mushiroda, Tetsuya Kamataki et al.: "The house musk shrew (Suncus murinus) : a unique animal with extremely low level of expression of mRNA for CYP3A and flavin-containing monooxygenase."Comparative Biochemistry & Physiology. 126. 225-234 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Takashi Satoh, Tetsuya Kamataki et al.: "Studies on the interactions between drugs and estrogen. Analytical method for prediction system of gynecomastia induced by drugs on the inhibitory metabolism of estradiol using Escherichia coli co-expressing human CYP3A4 with human"Anal.Biochem.. 286. 179-186 (2000)

    • Related Report
      2000 Annual Research Report

URL: 

Published: 2000-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi