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Control of RNA modification aimed at antivirus activities

Research Project

Project/Area Number 19H02850
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 37030:Chemical biology-related
Research InstitutionKyoto University

Principal Investigator

Imanishi Miki  京都大学, 化学研究所, 准教授 (80362391)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2021: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2020: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2019: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
KeywordsRNAメチル化 / 脱メチル化酵素 / 非標準核酸構造 / エピトランスクリプトーム / RNA脱メチル化 / FTO / RNA高次構造 / RNAメチル化制御 / RNA修飾
Outline of Research at the Start

近年、ウイルスの感染過程でRNAのメチル化が関わることが示唆されており、RNAの修飾の人為的な制御は、抗ウイルス薬開発における新しい標的となることが期待される。本研究では、RNAメチル化酵素や脱メチル化酵素への作用薬の探索および、ウイルスRNAを標的とした配列特異的メチル化調節酵素のデザインを行い、新たな抗ウイルス薬の創薬標的としての“RNAエピトランスクリプトミクス”の可能性を明らかにしたい。

Outline of Final Research Achievements

In recent years, it has become clear that RNA methylation is involved in the viral infection process, thus selective compounds or molecules that regulate methylation are expected to be useful against viral infection. In addition, knowledge on the mechanism of RNA methylation of viral genomes is also lacking. In this study, we used an original screening system to find selective inhibitor candidates for an N6-methyladenosine demethylase, FTO. We also found that RNA methyltransferases recognize RNA nonstandard structures, providing experimental support for the relationship between RNA nonstandard structures and RNA methylation in viral genomes that had been suggested by bioinformatics analysis.

Academic Significance and Societal Importance of the Research Achievements

近年、ウイルスの感染過程でRNAのメチル化が関わることが示唆されているため、本研究で見出した新規な骨格および阻害様式をもつ脱メチル化酵素阻害剤によってRNAのメチル化状態を変化させることは、新しい抗ウイルス薬開発の基盤となることが期待される。また、ウイルスゲノムにおけるRNA非標準構造とRNAメチル化との関係性を実験的に支持する結果を得たことから、抗ウイルスのための新たな方向性を提起できたといえる。

Report

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

    (21 results)

All 2022 2021 2020 2019

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (18 results) (of which Int'l Joint Research: 4 results,  Invited: 6 results)

  • [Journal Article] Recognition of G-quadruplex RNA by a crucial RNA methyltransferase component, METTL142022

    • Author(s)
      A. Yoshida, T. Oyoshi, A. Suda, S. Futaki, M. Imanishi
    • Journal Title

      Nucleic Acids Res.

      Volume: 50 Issue: 1 Pages: 449-457

    • DOI

      10.1093/nar/gkab1211

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effective RNA Regulation by Combination of Multiple Programmable RNA-Binding Proteins2020

    • Author(s)
      Sugimoto Misaki、Suda Akiyo、Futaki Shiroh、Imanishi Miki
    • Journal Title

      Applied Sciences

      Volume: 10 Issue: 19 Pages: 6803-6803

    • DOI

      10.3390/app10196803

    • NAID

      120006890707

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Programmable RNA methylation and demethylation using PUF RNA binding proteins2020

    • Author(s)
      Shinoda Kouki、Suda Akiyo、Otonari Kenko、Futaki Shiroh、Imanishi Miki
    • Journal Title

      Chemical Communications

      Volume: 56 Issue: 9 Pages: 1365-1368

    • DOI

      10.1039/c9cc09298f

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] RNA脱メチル化酵素FTO特異的な阻害剤のスクリーニング2022

    • Author(s)
      田中 和無爲、今西 未来、二木 史朗
    • Organizer
      日本薬学会第142年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] RNAメチル化酵素複合体主要構成因子METTL14のRNAグアニン四重鎖への選択的結合2022

    • Author(s)
      今西 未来、吉田 敦裕、大吉 崇文 、二木 史朗
    • Organizer
      日本薬学会第142年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Targeted RNA methylation and demethylation using artificial RNA binding proteins2021

    • Author(s)
      Miki Imanishi
    • Organizer
      Pacifichem 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Targeted RNA demethylation using sequence-specific RNA binding proteins2021

    • Author(s)
      Kenko Otonari, Kouki Shinoda, Miki Imanishi, Shiroh Futaki
    • Organizer
      FIBER日本核酸化学会若手フォーラム
    • Related Report
      2021 Annual Research Report
  • [Presentation] G-quadruplex specific binding of an RNA methyltransferase, METTL142021

    • Author(s)
      Miki Imanishi, Atsuhiro Yoshida, Takanori Oyoshi, Akiyo Suda, Shiroh Futaki
    • Organizer
      FIBER日本核酸化学会若手フォーラム
    • Related Report
      2021 Annual Research Report
  • [Presentation] 核酸メチル化修飾の検出と操作2021

    • Author(s)
      今西未来
    • Organizer
      大阪市立大学大学院工学研究科BMEC第9回セミナー
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] エピトランスクリプトームを制御する人工タンパク質の創製2021

    • Author(s)
      今西未来
    • Organizer
      第21回日本蛋白質科学会年会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 配列特異的RNA結合タンパク質を利用したRNA脱メチル化反応の標的化2021

    • Author(s)
      音成兼光・篠田昂樹・今西未来・二木史朗
    • Organizer
      日本薬学会第141年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] エピトランスクリプトームを制御するテーラーメイドタンパク質2020

    • Author(s)
      今西未来
    • Organizer
      第93回日本生化学会大会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 配列選択的RNA結合タンパク質を用いたRNAメチル化状態の配列特異的制御2020

    • Author(s)
      今西 未来・篠田 昂樹・須田 明代・二木 史朗
    • Organizer
      第14回バイオ関連化学シンポジウム2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] Targeted RNA methylation and demethylation using artificial RNA binding proteins2020

    • Author(s)
      今西未来
    • Organizer
      第43回日本分子生物学会年会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 人工RNA結合タンパク質を用いた修飾RNAの配列特異的な脱メチル化2020

    • Author(s)
      音成兼光・篠田昂樹・今西未来・二木史朗
    • Organizer
      第70回日本薬学会関西支部大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] グアニン四重鎖構造を介した特異的RNAメチル化機構に関する研究2020

    • Author(s)
      吉田敦裕・今西未来・二木史朗
    • Organizer
      第70回日本薬学会関西支部大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Programmable RNA methylation and demethylation using PUF RNA binding proteins2020

    • Author(s)
      Miki Imanishi, Kouki Shinoda, Akiyo Suda, Shiroh Futaki
    • Organizer
      The 3rd IRCCS - The 2nd Reaction Infography Joint International Symposium
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] RNAを標的とした遺伝子発現操作2019

    • Author(s)
      今西未来
    • Organizer
      第22回生命化学研究会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] A simple screening system for inhibitors of m6A-regulatory enzymes2019

    • Author(s)
      Miki Imanishi, Akiyo Suda, Shiroh Futaki
    • Organizer
      RNA2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A simple screening system for inhibitors of m6A-regulatory enzymes2019

    • Author(s)
      Miki Imanishi
    • Organizer
      10th Joint RSC-CSJ Symposium: Chemistry for Complex Biological Systems
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] N6-メチルアデノシン調節酵素活性の簡便な検出法の開発2019

    • Author(s)
      今西未来
    • Organizer
      第13回バイオ関連化学シンポジウム
    • Related Report
      2019 Annual Research Report

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

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