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

Quantitative analysis and chemical regulation of DNA replication stall depending on mitchondrial environments

Research Project

Project/Area Number 21K05283
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 37010:Bio-related chemistry
Research InstitutionKonan University

Principal Investigator

Takahashi Shuntaro  甲南大学, 先端生命工学研究所, 准教授 (40456257)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsグアニン四重鎖 / i-motif / 熱力学 / 遺伝子複製 / 分子クラウディング / ミトコンドリア / 圧力 / リガンド / 変異 / 分子クラウディング環境 / DNA / 分子環境 / 核酸構造
Outline of Research at the Start

ミトコンドリアはアデノシン三リン酸(ATP)などの高エネルギー分子を生産する重要な細胞小器官である。近年、細胞内外の環境変化がミトコンドリアDNA(mtDNA)の変異を誘発し、細胞内の代謝異常を生じることで、癌や糖尿病などの生活習慣病が引き起こされることが明らかになってきた。本研究では、四重鎖構造の安定性やトポロジーがmtDNAの複製反応に及ぼす影響を定量解析することで、ミトコンドリア内環境依存的なmtDNA変異発生のメカニズムの解明とその化学的制御を目指す。mtDNAの変異発生を定量的に理解することで、生活習慣病のリスク診断技術や、mtDNAの四重鎖形成を制御する治療薬の開発などの新しい医工学の展開が期待できる。

Outline of Final Research Achievements

The objective of this study is to quantitatively elucidate the chemical mechanisms by which mtDNA mutations are caused by changes in the chemical environment within mitochondria. To this end, we quantitatively analyzed the control mechanism of the replication reaction by the quadruplex DNA structure, and explored, designed, and synthesized small molecular compounds that regulate specific quadruplex structures. Furthermore, by developing an instrument to evaluate the intramitochondrial environment, he analyzed the formation of intramitochondrial quadruplexes in HeLa cells. These achievements have been published in international journals, including the Journal of the American Chemical Society.

Academic Significance and Societal Importance of the Research Achievements

本研究は、物理的な環境の効果と生物学的な遺伝子変異を定量的に結びつけるという特色がある。本研究成果を基盤として、ミトコンドリア内の溶液物性、四重鎖構造の安定性、および複製阻害効果を統合したデータベースを構築することができる。それにより、ミトコンドリア内の環境変化とmtDNAの変異発生を定量的に結びつける。このようなデータベースを活用することで今後新しい医工学技術の創出が期待できる。例えば、細胞内環境から生活習慣病の発症リスクを評価する診断技術の確立や、mtDNAの四重鎖構造を制御して複製阻害を抑える薬剤の合目的的な開発などに貢献できると考えられる。

Report

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

    (29 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (5 results) Journal Article (9 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 9 results,  Open Access: 4 results) Presentation (13 results) (of which Int'l Joint Research: 6 results,  Invited: 4 results) Remarks (2 results)

  • [Int'l Joint Research] MGMARI(インド)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] カルカッタ大学(インド)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] Reading大学(英国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] コルカタ大学(インド)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] 国立NMRセンター(スロベニア)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Development of a Pseudocellular System to Quantify Specific Interactions Determining the G-Quadruplex Function in Cells2024

    • Author(s)
      Tateishi-Karimata Hisae、Kawauchi Keiko、Takahashi Shuntaro、Sugimoto Naoki
    • Journal Title

      Journal of the American Chemical Society

      Volume: 146 Issue: 12 Pages: 8005-8015

    • DOI

      10.1021/jacs.3c11160

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Theranostic approach to specifically targeting the interloop region of BCL2 i-motif DNA by crystal violet2023

    • Author(s)
      Das Sinjan、Takahashi Shuntaro、Ohyama Tatsuya、Bhowmik Sudipta、Sugimoto Naoki
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 14338-14338

    • DOI

      10.1038/s41598-023-39407-9

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Pressure-temperature control of activity of RNA polymerase ribozyme2023

    • Author(s)
      Takahashi Shuntaro、Sugimoto Naoki
    • Journal Title

      Biophysical Chemistry

      Volume: 292 Pages: 106914-106914

    • DOI

      10.1016/j.bpc.2022.106914

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Endogenous G-quadruplex-forming RNAs inhibit the activity of SARS-CoV-2 RNA polymerase2023

    • Author(s)
      Endoh Tamaki、Takahashi Shuntaro、Sugimoto Naoki
    • Journal Title

      Chemical Communications

      Volume: 59 Issue: 7 Pages: 872-875

    • DOI

      10.1039/d2cc05858h

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Volumetric Strategy for Quantitatively Elucidating a Local Hydration Network around a G-Quadruplex2022

    • Author(s)
      Matsumoto Saki、Takahashi Shuntaro、Bhowmik Sudipta、Ohyama Tatsuya、Sugimoto Naoki
    • Journal Title

      Analytical Chemistry

      Volume: 94 Issue: 20 Pages: 7400-7407

    • DOI

      10.1021/acs.analchem.2c01075

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Dielectricity of a molecularly crowded solution accelerates NTP misincorporation during RNA-dependent RNA polymerization by T7 RNA polymerase2022

    • Author(s)
      S. Takahashi, S. Matsumoto, P. Chilka, S. Ghosh, H. Okura, and N. Sugimoto
    • Journal Title

      Sci. Rep.

      Volume: 12 Issue: 1 Pages: 1149-1149

    • DOI

      10.1038/s41598-022-05136-8

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ruthenium Polypyridyl Complex Bound to a Unimolecular Chair-Form G-Quadruplex2022

    • Author(s)
      K. T. McQuaid, S. Takahashi, L. Baumgaertner, D. J. Cardin, N. G. Paterson, J. P. Hall, N. Sugimoto, and C. J. Cardin
    • Journal Title

      J. Am. Chem. Soc.

      Volume: 144 Issue: 13 Pages: 5956-5964

    • DOI

      10.1021/jacs.2c00178

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Replication Control of Human Telomere G-Quadruplex DNA by G-Quadruplex Ligands Dependent on Solution Environment2022

    • Author(s)
      S. Takahashi, S. Bhowmik, S. Sato, S. Takenaka, and N. Sugimoto
    • Journal Title

      Life

      Volume: 12 Issue: 4 Pages: 533-533

    • DOI

      10.3390/life12040553

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Chemical Modulation of DNA Replication along G-Quadruplex Based on Topology-Dependent Ligand Binding2021

    • Author(s)
      S. Takahashi, A. Kotar, H. Tateishi-Karimata, S. Bhowmik, Z.-F. Wang, T.-C. Chang, S, Sato, S. Takenaka, J. Plavec, and N. Sugimoto
    • Journal Title

      J. Am. Chem. Soc.

      Volume: 143 Issue: 40 Pages: 16458-16469

    • DOI

      10.1021/jacs.1c05468

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] New Data Science in Nucleic Acids Chemistry (5): Effect of local environments on the stability of nucleic acids in mitochondria2024

    • Author(s)
      S. Ghosh, L. Liu, S. Takahashi, T. Endoh, N. Yoshinaga, K. Numata, N. Sugimoto
    • Organizer
      日本化学会第104回春季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] High pressure study for the functions of non-canonical nucleic acids structures aiming for therapeutics and health care2023

    • Author(s)
      S. Takahashi, N. Sugimoto
    • Organizer
      International Symposium Current Trends and Future Perspectives of Nucleic Acids Research in Health & Diseases
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Chemical targeting of i-motif DNAs for cancer theranostic applications2023

    • Author(s)
      S. Das, S. Takahashi, T. Ohyama, S. Bhowmik, N. Sugimoto
    • Organizer
      第50回国際核酸化学シンポジウム
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High pressure study of dynamics of non-canonical nucleic acid structures2022

    • Author(s)
      S. Takahashi
    • Organizer
      The 11th International Conference on High Pressure Bioscience and Biotechnology
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] i-motif 型 DNA 構造に対する分子クラウディング効果の定量的解析2022

    • Author(s)
      高橋俊太郎, S. Ghosh, P. Chilka, 大山達也, 杉本直己
    • Organizer
      第71回高分子討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] SARS-CoV-2由来RNA依存性RNAポリメラーゼの複製反応におけるグアニン四重鎖の効果とその制御2022

    • Author(s)
      高橋俊太郎, 松本咲, 建石寿枝, Byeang Hyean Kim, 杉本直己
    • Organizer
      第16回バイオ関連化学シンポジウム
    • Related Report
      2022 Research-status Report
  • [Presentation] Volumetric study for the functions of non-canonical nucleic acids structures2022

    • Author(s)
      S. Takahashi
    • Organizer
      Advances in Noncanonical Nucleic Acids 2022 “ANNA2022”
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Thermodynamics approach for the fidelity of RNA-dependent RNA polymerase of SARS- CoV-2 under molecular crowdings2022

    • Author(s)
      S. Takahashi, N. Sugimoto
    • Organizer
      第49回国際核酸化学シンポジウム
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 脱ワトソン・クリックの核酸化学 (87): 高圧力を用いたグアニン四重鎖の水和解析によるリガンド結合予測2022

    • Author(s)
      高橋 俊太郎、松本 咲、大山 達也、Sudipta Bhowmik、杉本 直己
    • Organizer
      日本化学会第103回春季年会
    • Related Report
      2022 Research-status Report
  • [Presentation] Nucleic Acids Chemistry beyond the Watson-Crick Double Helix (78) : Analysis of structural dynamics of c-Myc G-quadruplex DNA using high pressure2022

    • Author(s)
      S. Takahashi, T. Ohyama, S.-B. Chen, J.-H. Tan, N. Sugimoto
    • Organizer
      日本化学会第102回春季年会
    • Related Report
      2021 Research-status Report
  • [Presentation] トポロジー依存的なリガンド結合でグアニン四重鎖のDNA複製を制御する2021

    • Author(s)
      高橋俊太郎, 建石寿枝, 佐藤しのぶ, 竹中繁織, J. Plavec, 杉本直己
    • Organizer
      第15回バイオ関連化学シンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] 細胞内での核酸の挙動を明らかにする熱力学解析2021

    • Author(s)
      高橋俊太郎
    • Organizer
      第57回熱測定討論会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Chemical modulation of DNA replication by topology- dependent ligand binding on guanine quadruplexes2021

    • Author(s)
      S. Takahashi, A. Kotar, H. Tateishi-Karimata, S. Bhowmik, Zi-Fu Wang, Ta-Chau Chang, S. Sato, S. Takenaka, J. Plavec, N. Sugimoto
    • Organizer
      第48回国際核酸化学シンポジウム
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Remarks] 甲南大学先端生命工学研究所

    • URL

      https://www.konan-fiber.jp

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
  • [Remarks] 甲南大学先端生命工学研究所ホームページ

    • URL

      http://www.konan-fiber.jp/indexb/

    • Related Report
      2021 Research-status 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