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チトクロームPー450を中心とした薬物代謝酵素遺伝子発現と化学発癌

Research Project

Project/Area Number 01010005
Research Category

Grant-in-Aid for Cancer Research

Allocation TypeSingle-year Grants
Research InstitutionTohoku University

Principal Investigator

渡辺 民朗  東北大学, 抗酸菌病研究所, 教授 (40006101)

Co-Investigator(Kenkyū-buntansha) 山添 康  慶應義塾大学, 医学部, 講師 (00112699)
藤田 正一  千葉大学, 薬学部, 助教授 (10143314)
十川 和博  東北大学, 理学部, 助教授 (80175421)
佐藤 清美  弘前大学, 医学部, 教授 (50006079)
鎌滝 哲也  北海道大学, 薬学部, 教授 (00009177)
Project Period (FY) 1989
Project Status Completed (Fiscal Year 1989)
Budget Amount *help
¥17,100,000 (Direct Cost: ¥17,100,000)
Fiscal Year 1989: ¥17,100,000 (Direct Cost: ¥17,100,000)
KeywordsチトクロームPー450遺伝子 / チトクロームPー450cDNA / チトクロームPー450蛋白 / 癌原性化学物質の代謝 / 遺伝子転写調節蛋白 / アセチルトランスフェラーゼ / グルタチオンSートランスフェラーゼ / ヒト遺伝子のRFLP
Research Abstract

1.P450、アセチルトランスフェラーゼ(AT)の遺伝子構造とその発現調節:メチルコラントレン(MC)で誘導されるハムスター肝P450MCI(IA2)(芳香族アミンなどの代謝)、MCII(IIA)(アフラトキシンの代謝)のcDNAの全塩基配列、ラット肝の培養により誘導されP450(Mー1)抗体と反応する新しいP450のcDNA塩基配列、癌原性アリルアミンの代謝に重要なATー1のcDNAの塩基配列を決定した。ラットP450IA1遺伝子の誘導的発現に関与する基本的転写因子(BTE)に結合する蛋白のcDNAを分離し、56KDaの分子量を決定した。ヒトP450humanー2のcDNAを酵母内で発現し、この蛋白はベンツピレンとメフェニトインの代謝活性が強いことを確かめる。P450IA1遺伝子に属するイヌとサルのcDNAを分離し、酵母内で発現すると、変異原の活性化能のテストでベンツピレンへの感受性はなかった。2.P450、グルタチオンSートランスフェラーゼ(GST)の蛋白の精製とその特質:P450II掛C遺伝子に属すが、アフラトキシンB_1の活性化に関与するイヌP450D1とラットP450maleと、活性化能の低いカニクイザルP450MKー1とヒトP450HMー2とに分かれ、P450IIIAに属するサルP450MKー2、ヒトP450HMー1も共に低かった。ジアルキルニトロサミンの活性化には、アルキル基の種類によりP450IIE1とP450IIC12への依存性が異なっている。発癌剤アリルメタノールの硫酸エステルを不活性化する新しいGSTを分離精製した。3.ヒト遺伝子多型性:P450IA1遺伝子でII型制限酵素Mspー1、P450IIE1遺伝子でMspー1、Rsaー1、Draー1、P450IIIA遺伝子でEcoRー1部位にRFLPが認められた。4.将来への展望:癌原性化学物質の代謝に関与する新たなP450遺伝子の同定を試み、ヒトでのRFLPと遺伝的素因との関連をみる。

Report

(1 results)
  • 1989 Annual Research Report
  • Research Products

    (39 results)

All Other

All Publications (39 results)

  • [Publications] Ohmachi,T.: "Purification and characterization of cytochrome P-450 from liver microsomes of 3-methylcholanthrene-treated crab-eating monkeys." J.Biochem.105. 307-311 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Watanabe,M.: "Role of cytochrome P-450 in chemical toxicity and carcinogenesis." J.Toxicol.Pathol.2. 241-251 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Kikuchi,H.: "Complementary DNA sequence of 3-methylcholanthrene-inducible P-450 from the rat lung." Tohoku J.Exp.Med.(1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] Komori,M.: "Molecular cloning and sequence analysis of cDNA containing the entire coding region for human fetal liver cytochrome P-450." J.Biochem.105. 161-163 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Ohta,K.: "Purification of cytochrome P-450 from polychlorinated biphenyl-treated crab eating monkeys:High homology to a form of human cytochrome P-450." Biochem.Biophys.Acta.996. 142-145 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Ohta,K.: "Interspecies homology of cytochrome P-450 cross-reactive with anti-rat P-448-II antibodies in liver microsomes from dogs,monkeys and humans." Mutation Research. 226. 163-167 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Kitada,M.: "Immunochemical studies for the presence of P-450 HFLa,a form of cytochrome P-450 in human fetal livers in human hepatocellular carcinoma cells." J.Pharmacobio-Dyn.12. 341-344 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Komori,M.: "Evidence for expression of a limited number of form(s)of cytochrome P-450 in human fetal livers." Archs.Biochem.Biophys.272. 219-225 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Miura,T.: "Decrease in a constitutive form of cytochrome P-450 by macrrolide antibiotics." J.Antimicrobial Chemotherapy. 24. 551-559 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Kitada,M.: "Mutagenic activation of aflatoxin B1 by P-450 HFLa in human fetal livers." Mutation Research. 227. 53-58 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Sano,K.: "Distributional variation of P-450 immunoreactive hepatocytes in human liver disorders." Human Pathology. 20. 1015-1020 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Ohta,K.: "Interspecies homology of cytochrome P-450:Purification and toxicological significance of a high spin form of cytochrome P-450(P-450-D2)from liver microsomes of polychlorinated biphenyl(PCB)-treated beagle dogs." J.Biopharm.Sci.(1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Komori,M.: "Fetus-specific expression of a form of cytochrome P-450 in human livers." Biochemistry. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] Sogawa,K.: "Repression of cytochrome P-450c gene expression by cotransfection with adenovirus Ela DNA." Eur.J.Biochem.181. 539-544 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Yanagida,A.: "A novel cis-acting DNA element required for a high level of inducible expression of the P-450c gene." Mol.Cell.Biol.(1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] Imaoka,S.: "ω-and(ω-1)-hydroxylation of lauric acid and arachidonic acid by rat renal cytochrome P-450." Biochem.Internat.18. 731-740 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Imaoka,S.: "Expression of four phenobarbital-inducible cytochrome P-450s in liver,kidney,and lung of rats." J.Biochem.105. 939-945 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Kitada,M.: "Form-specific degradation of cytochrome P-450 by lipid peroxidation in rat liver microsomes." Res.Commun.Chem.Pathol.Pharmacol.63. 175-187 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Kikuta,Y.: "Purification and characterization of hepatic microsomal prostaglandin ω-hydroxylase cytochrome P-450 from pregnant rabbits." J.Biochem.106. 468-473 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Yamazoe,Y.: "Suppression of hepatic levels of an ethanol-inducible P-450DM/j by growth hormone:relationship between the increased level of P-450DM/j and depletion of growth hormone in diabetes." Mol.Pharmacol.36. 716-722 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Oda,Y.: "Metabolism of lidocaine by purified rat liver microsomal cytochrome P-450 isozymes." Biochem.Pharmacol.38. 4439-4444 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Nemoto,N.: "Proline-dependent expression of aryl hydrocarbon hydroxylase in C57BL/6 mouse hepatocytes in primary culture." Cancer Res.49. 5863-5869 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Fujita,S.: "Evaluation of the involvement of a male specific cytochrome P-450 isozyme in senescence-associated decline of hepatic drug metabolism in male rats." Biochem.Pharmacol.38. 3925-3931 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Chiba,M.: "Kinetic properties of the metabolism of imipramine and desipramine in isolated rat hepatocytes." Biochem.Pharmacol.39. 367-372 (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] Chiba,M.: "Pharmacokinetic correlation between in vitro hepatic microsomal enzyme and in vivo disposition of imipramine and desipramine in rats." J.Pharm.Sci.79. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] Fujita,S.: "Alteration of plasma sex hormone levels associated with old age and its effect on hepatic drug metabolism in rats." J.Pharmacol.Exp.Ther.(1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] Fujita,S.: "Age-associated alterations in diazepam metabolizing enzyme activities in male and female rats." Drug.Metabol.Dispos.(1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] Satoh,K.: "Transient induction of single GST-P positive hepatocytes by DEN." Carcinogenesis. 10. 2107-2111 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Tsuchida,S.: "Elevation of the placental glutathione S-transferase form(GST-π)in tumor tissues and the levels in sera of patients with cancer." Cancer Res.49. 5225-5229 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Tamai,K.: "Specific inactivation of glutathione S-transferases in class Pi by SH-modifiers." Biochem.Biophys.Res.Commun.(1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] Sakai,M.: "Structure and expression of the rat c-jun messenger RNA:Tissue distribution and increase during chemical hepatocarcinogenesis." Cancer Res.49. 5633-5637 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Hiratsuka,A.: "A new class of rat glutathione S-transferase Yrs-Yrs inactivating reactive sulfate esters as metabolites of carcinogenic arylmethanols." J.Biol.Chem.(1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] Tsuchida,S.: "Purification and characterization of glutathione transferases with an activity toward nitroglycerin from human aorta and heart." J.Biol.Chem.(1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] Yamazoe,Y.: "Enzymatic acetylation and sulfation of N-hydroxyarylamines in bacteria and rat livers." Carcinogenesis. 10. 1675-1679 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Yasumori,T.: "Expression of a human P-450IIC gene in yeast cells using galactose-inducible expression system." Mol.Pharmacol.35. 443-449 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Watanabe,M.: "Cytochrome P-450:Biochemistry and Biophysics.ed.by Schuster,I." Taylor and Francis,London., 536-539 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Sato,K.: "Glutathione Centennial:Molecular Perspectives and Clinical Implications.eds.by Sakamoto,Y.,Higashi,T.,Taniguchi,N.and Meister,A." Academic Press Inc.,New York., 259-270 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Sato,K.: "Glutathione S-transferases and drug resistance.eds.by Hayes,J.,Hayes,P.C.,Mantle,T.J.and Pickett,C." Taylor and Francis,London., (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] Kato,R.: "Xenobiotic Metabolism and Disposition.eds.by Kato,R.,Estabrook,R.W.and Cayen,M.N." Taylor and Francis,London., 383-391 (1989)

    • Related Report
      1989 Annual Research Report

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Published: 1989-04-01   Modified: 2016-04-21  

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