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

Development of epigenome sensor model mediated by nuclear receptor pathway

Research Project

Project/Area Number 19K07200
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 47060:Clinical pharmacy-related
Research InstitutionIwate Medical University

Principal Investigator

Habano Wataru  岩手医科大学, 薬学部, 准教授 (50332979)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords核内受容体 / エピゲノム / エピジェネティクス
Outline of Research at the Start

ヒトは生体外のストレス(環境物質や薬物の曝露、低酸素・栄養)に応答し、様々な反応をする。このとき生体外の異物と細胞内の遺伝子発現の橋渡しをするのが核内受容体である。我々は、核内受容体を介したストレス応答性が、標的となる遺伝子のDNAメチル化状態により制御されることを見出し、「エピゲノムセンサー」のモデルとしての有用性に着目した。本研究では、このモデルを使って細胞内で起こる核内受容体と標的配列の結合応答性を評価する手法を確立するとともに、同様のメカニズムにより制御される他のエピゲノムセンサーの探索を試みる。

Outline of Final Research Achievements

Exposure to xenobiotic compounds induces drug metabolizing enzymes through activation of nuclear receptor and promotes detoxification. For example, the ligand-activated nuclear receptor AhR, as a transcription factor, binds to XRE sequences in the regulatory region of the CYP1 gene. We found that DNA demethylation enhances the CYP1B1 gene expression induced by treatment with β-naphthoflavone (βNF). Chromatin immunoprecipitation using anti-AhR antibody revealed that AhR preferentially bound to XRE sequences without methylation. These results suggested that stress response mediated by AhR is regulated by DNA methylation status of target XRE sequences.

Academic Significance and Societal Importance of the Research Achievements

ヒトは生体外のストレスを感知して様々な反応をする。ヒト肝臓がん細胞に曝露したβNFは環境汚染物質であり、我々は核内受容体を介したストレス応答モデルを想定し、AhRのエピゲノムセンサーとしての役割を探索した。本研究で用いた新しい手法は、従来のレポーターアッセイやゲルシフトアッセイとは異なり、βNF曝露により活性化されたAhRと標的XRE配列との結合を自然なクロマチンの状態で評価できることが最大の特長である。本研究の成果は、他の転写因子が関わるストレス応答においても、DNAメチル化による応答性制御の評価に貢献することが期待できる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (6 results)

All 2022 2021 2019

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 5 results)

  • [Journal Article] Aryl hydrocarbon receptor as a DNA methylation reader in the stress response pathway2022

    • Author(s)
      Habano Wataru、Miura Toshitaka、Terashima Jun、Ozawa Shogo
    • Journal Title

      Toxicology

      Volume: 470 Pages: 153154-153154

    • DOI

      10.1016/j.tox.2022.153154

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] β-naphthoflavone-induced upregulation of CYP1B1 expression is mediated by the preferential binding of aryl hydrocarbon receptor to unmethylated xenobiotic responsive elements2021

    • Author(s)
      Miura Toshitaka、Onodera Ryo、Terashima Jun、Ozawa Shogo、Habano Wataru
    • Journal Title

      Experimental and Therapeutic Medicine

      Volume: 22 Issue: 6 Pages: 1410-1410

    • DOI

      10.3892/etm.2021.10846

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Recent Progress in Prediction Systems for Drug-induced Liver Injury Using In vitro Cell Culture2021

    • Author(s)
      Ozawa Shogo、Miura Toshitaka、Terashima Jun、Habano Wataru、Ishida Seiichi
    • Journal Title

      Drug Metabolism Letters

      Volume: 14 Issue: 1 Pages: 25-40

    • DOI

      10.2174/1872312814666201202112610

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cellular irinotecan resistance in colorectal cancer and overcoming irinotecan refractoriness through various combination trials including DNA methyltransferase inhibitors: a review2021

    • Author(s)
      Ozawa Shogo、Miura Toshitaka、Terashima Jun、Habano Wataru
    • Journal Title

      Cancer Drug Resistance

      Volume: 4 Pages: 946-64

    • DOI

      10.20517/cdr.2021.82

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A genome‐wide analysis of the molecular alterations occurring in the adenomatous and carcinomatous components of the same tumor based on the adenoma?carcinoma sequence2021

    • Author(s)
      Sugai Tamotsu、Osakabe Mitsumasa、Habano Wataru、Tanaka Yoshihito、Eizuka Makoto、Sugimoto Ryo、Yanagawa Naoki、Matsumoto Takayuki、Suzuki Hiromu
    • Journal Title

      Pathology International

      Volume: 71 Issue: 9 Pages: 582-593

    • DOI

      10.1111/pin.13129

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Aryl Hydrocarbon Receptor Mediates Cell Proliferation Enhanced by Benzo[a]pyrene in Human Lung Cancer 3D Spheroids2019

    • Author(s)
      Jimma Yoko、Jimma Keiko、Yachi Maako、Hakata Shuko、Habano Wataru、Ozawa Shogo、Terashima Jun
    • Journal Title

      Cancer Investigation

      Volume: 37 Issue: 8 Pages: 367-375

    • DOI

      10.1080/07357907.2019.1655760

    • Related Report
      2019 Research-status Report
    • Peer Reviewed

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi