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Elucidation of mechanisms underlying different glucocorticoid responses of drug-metabolizing enzymes, SULT1E1 and CYP3A7, in human fetal liver cells

Research Project

Project/Area Number 16K08368
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Medical pharmacy
Research InstitutionShinshu University

Principal Investigator

OHMORI Shigeru  信州大学, 学術研究院医学系(医学部附属病院), 教授 (70169069)

Co-Investigator(Kenkyū-buntansha) 山折 大  信州大学, 学術研究院医学系(医学部附属病院), 准教授 (40360218)
吉成 浩一  静岡県立大学, 薬学部, 教授 (60343399)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywordsヒト胎児肝細胞 / 糖質コルチコイド / SULT1E1 / CYP3A7 / 発現制御 / 発現調節因子 / エピジェネティクス / グルココルチコイド受容体 / 薬物代謝酵素
Outline of Final Research Achievements

Inducibility of SULT1E1 and CYP3A7 by glucocorticoids was examined with human fetal liver cells to elucidate mechanisms underlying different glucocorticoid response of SULT1E1 and CYP3A7 genes. Expression profile of glucocorticoid receptors and epigenetic regulation did not explain such a different glucocorticoid response. Our study suggests that distinct regulatory factors may be responsible for glucocorticoid responses of SULT1E1 and CYP3A7 genes. Further studies are needed to clarify a role of SAA1 in SULT1E1 induction and roles of FOXO1, ASF1B and E2F1 in CYP3A7 induction.

Academic Significance and Societal Importance of the Research Achievements

本研究により、ヒト胎児肝における薬物応答性を規定する肝組織の特性と薬物の特徴を明確にすることができた。すなわち、胎児期に産生されるステロイドホルモンの不活化に関与する薬物代謝酵素SULT1E1およびCYP3A7の糖質コルチコイド応答性には、それぞれ異なる発現調節因子が関わっている可能性が示唆された。本研究成果を基盤にして、将来より多くの薬物に対する応答性を明らかにすることができれば、妊娠中の適正な薬物療法に対する新たな治療戦略の構築に大きく貢献できることが期待される。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (3 results)

All 2018 2017

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (2 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] A Specific Probe Substrate for Evaluation of CYP4A11 Activity in Human Tissue Microsomes and a Highly Selective CYP4A11 Inhibitor: Luciferin-4A and Epalrestat2018

    • Author(s)
      Yamaori Satoshi、Araki Noriyuki、Shionoiri Mio、Ikehata Kurumi、Kamijo Shinobu、Ohmori Shigeru、Watanabe Kazuhito
    • Journal Title

      Journal of Pharmacology and Experimental Therapeutics

      Volume: 366 Issue: 3 Pages: 446-457

    • DOI

      10.1124/jpet.118.249557

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] Characterization of antihypertensive drugs as potent inhibitors of CYP2J22018

    • Author(s)
      Yamaori S, Ikemura N, Kobayashi C, Kamijo S, Ohmori S
    • Organizer
      22nd North American International Society for the Study of Xenobiotics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ヒト胎児肝細胞における糖質コルチコイドによる硫酸転移酵素SULT1E1の発現誘導2017

    • Author(s)
      山折 大、相川香織、上条しのぶ、松永民秀、大森 栄
    • Organizer
      日本薬学会第137年会
    • Place of Presentation
      仙台国際センター(宮城県)
    • Year and Date
      2017-03-27
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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