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

Construction of RNA dynamics science and RNA-targeted drug assay systems

Research Project

Project/Area Number 21H02059
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 37010:Bio-related chemistry
Research InstitutionTokyo Institute of Technology (2022-2023)
Osaka University (2021)

Principal Investigator

KAWAI KIYOHIKO  東京工業大学, 生命理工学院, 教授 (50314422)

Co-Investigator(Kenkyū-buntansha) 田邉 一仁  青山学院大学, 理工学部, 教授 (40346086)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2023: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2022: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2021: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
KeywordsRNA / 光化学 / 1分子計測 / 核酸 / 1分子計測 / 蛍光 / ブリンキング / 三重項ー三重項エネルギー移動 / ダイナミクス / 過渡構造
Outline of Research at the Start

近年、新たな創薬ターゲットとしてRNAが注目されているが、RNAはダイナミックな分子であり、タンパク質のように、最安定構造だけを狙った創薬での成功は難しかった。本研究課題では、蛍光相関分光法、1分子蛍光観測法に基づき、微量の試料を用いたRNAダイナミクスの測定法を開発しその理解を深めるとともに、RNAを創薬標的とした薬剤評価を行うアッセイ系の構築を目指す。

Outline of Final Research Achievements

In this study, we developed a method for measuring RNA structural transition based on single-molecule fluorescence observations, which allows the dynamics of heterogeneous RNA structures to be investigated with μsec time resolution from very small amounts of RNA, and we used the developed method to deepen the science on the impact of drug binding on RNA dynamics. Specifically, single-molecule measurements of RNA dynamics and structure based on two types of blinking observations were developed. We developed a method for measuring RNA dynamics using blinking by triplet-triplet energy transfer (TTET). A method for detecting point mutations in RNA structure using blinking by electron transfer within nucleic acids was developed.

Academic Significance and Societal Importance of the Research Achievements

RNAのダイナミクス、および、RNA配列中の点変異を1分子測定できる手法を開発しました。本手法は、1分子測定に基づくため、貴重な生体資料を用いた測定が可能となります。また、PCRや検査キットに必要な増幅操作が必要ないため、増幅に要していた時間とコストを削減できます。その場測定が可能であるため、病理切片等におけるその場観察が可能となり、診断や分析に幅広く応用可能な手法として期待されます。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (23 results)

All 2024 2023 2022 2021

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 1 results) Presentation (16 results) (of which Int'l Joint Research: 7 results,  Invited: 4 results)

  • [Journal Article] Programmed Control of Fluorescence Blinking Patterns based on Electron Transfer in DNA2023

    • Author(s)
      Fan Shuya、Takada Tadao、Maruyama Atsushi、Fujitsuka Mamoru、Kawai Kiyohiko
    • Journal Title

      Chemistry - A European Journal

      Volume: 29 Issue: 19 Pages: 1-6

    • DOI

      10.1002/chem.202203552

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Large Heterogeneity Observed in Single Molecule Measurements of Intramolecular Electron Transfer Rates through DNA2022

    • Author(s)
      Fan Shuya、Takada Tadao、Maruyama Atsushi、Fujitsuka Mamoru、Kawai Kiyohiko
    • Journal Title

      Bulletin of the Chemical Society of Japan

      Volume: 95 Issue: 12 Pages: 1697-1702

    • DOI

      10.1246/bcsj.20220220

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electron-transfer kinetics through nucleic acids untangled by single-molecular fluorescence blinking2022

    • Author(s)
      Fan Shuya、Xu Jie、Osakada Yasuko、Hashimoto Katsunori、Takayama Kazuya、Natsume Atsushi、Hirano Masaki、Maruyama Atsushi、Fujitsuka Mamoru、Kawai Kumi、Kawai Kiyohiko
    • Journal Title

      Chem

      Volume: 8 Issue: 11 Pages: 3109-3119

    • DOI

      10.1016/j.chempr.2022.07.025

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 蛍光分子を1つ1つみると~蛍光の点滅=ブリンキングのパターンから情報を読む2022

    • Author(s)
      川井清彦、丸山厚、藤塚守
    • Journal Title

      化学

      Volume: 77 Pages: 68-69

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Single-molecule Fluorescence Kinetic Sandwich Assay Using a DNA Sequencer2022

    • Author(s)
      Kawai Kiyohiko、Fujitsuka Mamoru
    • Journal Title

      Chemistry Letters

      Volume: 51 Issue: 2 Pages: 139-141

    • DOI

      10.1246/cl.210726

    • NAID

      130008161623

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Control of Triplet Blinking Using Cyclooctatetraene to Access the Dynamics of Biomolecules at the Single‐Molecule Level2021

    • Author(s)
      Xu Jie、Fan Shuya、Xu Lei、Maruyama Atsushi、Fujitsuka Mamoru、Kawai Kiyohiko
    • Journal Title

      Angewandte Chemie International Edition

      Volume: 60 Issue: 23 Pages: 12941-12948

    • DOI

      10.1002/anie.202101606

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stacked Thiazole Orange Dyes in DNA Capable of Switching Emissive Behavior in Response to Structural Transitions2021

    • Author(s)
      Takada Tadao、Nishida Koma、Honda Yurika、Nakano Aoi、Nakamura Mitsunobu、Fan Shuya、Kawai Kiyohiko、Fujitsuka Mamoru、Yamana Kazushige
    • Journal Title

      ChemBioChem

      Volume: 22 Issue: 17 Pages: 2729-2735

    • DOI

      10.1002/cbic.202100309

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] 核酸化学から1分子光化学へ2024

    • Author(s)
      川井 清彦
    • Organizer
      Chemistry by Biology, Biology by Chemistry, 2024 ~生物有機化学の未来をすずかけ台で考える~
    • Related Report
      2023 Annual Research Report
  • [Presentation] Single molecule analysis and diagnosis by monitoring fluorescence blinking2024

    • Author(s)
      川井 清彦
    • Organizer
      第12回 生命理工国際シンポジウム
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Single molecule study of electron transfer through DNA2023

    • Author(s)
      Kiyohiko KAWAI; Atsushi MARUYAMA; Mamoru FUJITSUKA
    • Organizer
      The 31st International Conference on Photochemistry
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Blinking as an Additional Fluorescence-Based Readout Parameter: Blinking controlled by Electron Transfer through DNA2023

    • Author(s)
      Shuya FAN; Tadao TAKADA; Atsushi MARUYAMA; Mamoru FUJITSUKA; Kiyohiko KAWAI
    • Organizer
      The 50th International Symposium on Nucleic Acids Chemistry
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] DNA内電子移動による1分子蛍光blinkingの制御と情報読み分け2023

    • Author(s)
      Shuya FAN; Tadao TAKADA; Atsushi MARUYAMA; Mamoru FUJITSUKA; Kiyohiko KAWAI
    • Organizer
      第17回バイオ関連化学シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] 蛍光の点滅現象=blinking観測に基づく1分子分析・診断2023

    • Author(s)
      川井 清彦
    • Organizer
      バイオ機能医工学研究領域セミナー
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] レドックス制御型蛍光blinkingを用いた生体還元剤の定量2023

    • Author(s)
      土取 章太郎、米澤 祐基、Shuya FAN、丸山 厚、藤塚 守、川井 清彦
    • Organizer
      日本化学会第103回春季年
    • Related Report
      2022 Annual Research Report
  • [Presentation] 1分子蛍光blinking観測に基づく分析・診断法2022

    • Author(s)
      川井 清彦
    • Organizer
      日本環境変異原ゲノム学会第51回大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] In situ single molecule identification of point mutations in tumor cell block specimens by monitoring fluorescence blinking2022

    • Author(s)
      Shuya FAN、Jie XU、Yasuko OSAKADA、Katsunori HASHIMOTO、Kazuya TAKAYAMA、Atsushi NATSUME、Masaki HIRANO、Atsushi MARUYAMA、Mamoru FUJITSUKA、Kumi KAWAI、Kiyohiko KAWAI
    • Organizer
      ISANC 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 1分子blinking測定による腫瘍細胞病理切片上での点変異診断2022

    • Author(s)
      Shuya FAN、Jie Xu、小阪田泰子、橋本克訓、髙山和也、夏目敦至、平野雅規、丸山厚、藤塚守、川井久美、川井清彦
    • Organizer
      第16回 バイオ関連化学シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] Distance-dependent electron transfer kinetics in DNA at the single-molecule level2022

    • Author(s)
      Shuya FAN、Atsushi MARUYAMA、Mamoru FUJITSUKA、Kiyohiko KAWAI
    • Organizer
      光化学討論会2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] Single-molecule photochemistry of nucleic acids and its application to single-molecule analysis and diagnosis2022

    • Author(s)
      Kiyohiko KAWAI
    • Organizer
      光化学討論会2022
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Single molecule analysis and diagnosis by measuring chemical reaction rates2022

    • Author(s)
      Kiyohiko KAWAI, Atsushi MARUYAMA, Mamoru FUJITSUKA
    • Organizer
      The 25th SANKEN International Symposium
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] DNAシーケンサーを用いたDNAアプタマーの1分子計測2022

    • Author(s)
      川井 清彦、藤塚 守
    • Organizer
      日本化学会第102春季年会(2022)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Exploring the Dynamics of Nucleic Acids at the Single-Molecule Level Using Triplet-Triplet Energy Transfer Kinetics2021

    • Author(s)
      Jie Xu, Atsushi Maruyama, Mamoru Fujitsuka, Kiyohiko Kawai
    • Organizer
      ISNAC 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Using Triplet-Triplet Energy Transfer Kinetics to Access the Dynamics of Biomolecules at the Single-Molecule Level2021

    • Author(s)
      Jie XU, Shuya FAN, Lei XU, Atsushi MARUYAMA, Mamoru FUJITSUKA, Kiyohiko KAWAI
    • Organizer
      光化学討論会2021
    • Related Report
      2021 Annual Research Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi