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Fundamental research for elucidation of the molecular structure mechanism of oxidative phosphorylation enzymes and development of drug discovery

Research Project

Project/Area Number 21H02914
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 53020:Cardiology-related
Research InstitutionOsaka University

Principal Investigator

Takashima Seiji  大阪大学, 大学院生命機能研究科, 教授 (90379272)

Co-Investigator(Kenkyū-buntansha) 加藤 久和  大阪大学, 大学院医学系研究科, 助教 (30589312)
松岡 研  大阪大学, 大学院医学系研究科, 助教 (90826190)
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: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2021: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Keywords心不全 / エネルギー需給バランス / ミトコンドリア / 微小循環障害 / ATP合成酵素 / ATP / 心臓拡張不全 / G0s2 / 微小血管障害 / 生活習慣病 / 心臓拡張機能 / 低酸素 / 酸化的リン酸化酵素群 / アロステリック酵素活性化剤 / ミトコンドリア病 / 遺伝子治療
Outline of Research at the Start

我々はミトコンドリア内ATP産生を正確に測定可能なアッセイ系を組み立て、酸化的リン酸化酵素群であるComplexIVとVのアロステリック活性化タンパク質HigD1およびG0s2を発見した。そして、このタンパク質の作用分子機構の解明をすすめその構造学的特徴、生体内での役割を明確にしてきた。
本事業ではHigD1およびG0s2およびこれらのタンパク質と同じ作用点をもつ化合物や生体内遺伝子治療ツールを利用し、酸化的リン酸化酵素群の活性化機構の解明と化合物の臨床応用にむけた基盤研究を実施する。

Outline of Final Research Achievements

In Japan, the number of patients with heart failure is rapidly increasing as the population ages, and this has become an important public health issue. On the other hand, effective treatment methods for heart failure are limited, and the development of therapeutic drugs has not progressed. This study focused on specific factors related to the onset and exacerbation of heart failure, and clarified the role of these factors in the pathology of heart failure. Furthermore, we proceeded with the development of a completely new heart failure treatment targeting this factor, and achieved conceptual verification of its efficacy in vivo.

Academic Significance and Societal Importance of the Research Achievements

本事業においては、酸化的リン酸化酵素群の活性化機構を解明すると同時にタンパク質分解抑制化合物スクリーニング系の確立およびこの系を利用したFirst in Classの心不全治療薬の開発を物質特許出願まで行った。分子機構の解明は今後の生体内エネルギー代謝を考える上で学術的に重要な意義をもち、また新規で汎用性の高い薬剤アッセイ系の構築と実用実践は、我が国の新薬創生促進につながると期待される。

Report

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

    (9 results)

All 2023 2022 2021

All Journal Article (9 results) (of which Peer Reviewed: 9 results,  Open Access: 8 results)

  • [Journal Article] Modeling Reduced Contractility and Stiffness Using iPSC-Derived Cardiomyocytes Generated From Female Becker Muscular Dystrophy Carrier2023

    • Author(s)
      Kameda Satoshi、Higo Shuichiro、Shiba Mikio、Kondo Takumi、Li Junjun、Liu Li、Tabata Tomoka、Inoue Hiroyuki、Okuno Shota、Ogawa Shou、Kuramoto Yuki、Yasutake Hideki、Lee Jong-Kook、Takashima Seiji、Ikeda Yoshihiko、Hikoso Shungo、Miyagawa Shigeru、Sakata Yasushi
    • Journal Title

      JACC: Basic to Translational Science

      Volume: - Issue: 6 Pages: 599-613

    • DOI

      10.1016/j.jacbts.2022.11.007

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The oxidative folding of nascent polypeptides provides electrons for reductive reactions in the ER2023

    • Author(s)
      Uegaki Kaiku、Tokunaga Yuji、Inoue Michio、Takashima Seiji、Inaba Kenji、Takeuchi Koh、Ushioda Ryo、Nagata Kazuhiro
    • Journal Title

      Cell Reports

      Volume: 42 Issue: 7 Pages: 112742-112742

    • DOI

      10.1016/j.celrep.2023.112742

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Restoration of Cardiac Myosin Light Chain Kinase Ameliorates Systolic Dysfunction by Reducing Superrelaxed Myosin2023

    • Author(s)
      Hitsumoto T, Tsukamoto O, Matsuoka K, Li J, Liu L, Kuramoto Y, Higo S, Ogawa S, Fujino N, Yoshida S, Kioka H, Kato H, Hakui H, Saito Y, Okamoto C, Inoue H, Hyejin J, Ueda K, Segawa T, Nishimura S, Asano Y, Asanuma H, Tani A, Imamura R, Komagawa S, Kanai T, Takamura M, Sakata Y, Kitakaze M, Haruta JI, Takashima S.
    • Journal Title

      Circulation

      Volume: - Issue: 25 Pages: 1902-1918

    • DOI

      10.1161/circulationaha.122.062885

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Identifying antibiotics based on structural differences in the conserved allostery from mitochondrial heme-copper oxidases.2022

    • Author(s)
      Nishida Y, Yanagisawa S, Morita R, Shigematsu H, Shinzawa-Itoh K, Yuki H, Ogasawara S, et al
    • Journal Title

      Nat Commun.

      Volume: 13 Issue: 1 Pages: 7591-7591

    • DOI

      10.1038/s41467-022-34771-y

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gene Transfer of Skeletal Muscle-Type Myosin Light Chain Kinase via Adeno-Associated Virus 6 Improves Muscle Functions in an Amyotrophic Lateral Sclerosis Mouse Model2022

    • Author(s)
      Oya Ryohei、Tsukamoto Osamu、Hitsumoto Tatsuro、Nakahara Naoya、Okamoto Chisato、Matsuoka Ken、Kato Hisakazu、Inohara Hidenori、Takashima Seiji
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 23 Issue: 3 Pages: 1747-1747

    • DOI

      10.3390/ijms23031747

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Modeling reduced contractility and impaired desmosome assembly due to plakophilin-2 deficiency using isogenic iPS cell-derived cardiomyocytes2022

    • Author(s)
      Inoue Hiroyuki、Nakamura Satoki、Higo Shuichiro、Shiba Mikio、Kohama Yasuaki、Kondo Takumi、Kameda Satoshi、Tabata Tomoka、Okuno Shota、Ikeda Yoshihiko、Li Junjun、Liu Li、Yamazaki Satoru、Takeda Maki、Ito Emiko、Takashima Seiji、Miyagawa Shigeru、Sawa Yoshiki、Hikoso Shungo、Sakata Yasushi
    • Journal Title

      Stem Cell Reports

      Volume: 17 Issue: 2 Pages: 337-351

    • DOI

      10.1016/j.stemcr.2021.12.016

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Loss-of-function mutations in the co-chaperone protein BAG5 cause dilated cardiomyopathy requiring heart transplantation2022

    • Author(s)
      Hakui Hideyuki、Kioka Hidetaka、Miyashita Yohei、Nishimura Shunsuke、Matsuoka Ken、Kato Hisakazu、Tsukamoto Osamu、(3人省略)、Saito Shigeyoshi、Ohta Kunio、Asanuma Hiroshi、Fu Hai Ying、Shinomiya Haruki、Yamada Noriaki、Ohtani Tomohito、Sawa Yoshiki、Kitakaze Masafumi、Takashima Seiji、Sakata Yasushi、Asano Yoshihiro
    • Journal Title

      Science Translational Medicine

      Volume: 14 Issue: 628

    • DOI

      10.1126/scitranslmed.abf3274

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] ASB2 is a novel E3 ligase of SMAD9 required for cardiogenesis2021

    • Author(s)
      Min Kyung-Duk、Asakura Masanori、Shirai Manabu、Yamazaki Satoru、Ito Shin、Fu Hai Ying、Asanuma Hiroshi、Asano Yoshihiro、Minamino Tetsuo、Takashima Seiji、Kitakaze Masafumi
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 23056-23056

    • DOI

      10.1038/s41598-021-02390-0

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Lower B‐type natriuretic peptide levels predict left ventricular concentric remodelling and insulin resistance2021

    • Author(s)
      Okamoto Chisato、Tsukamoto Osamu、Hasegawa Takuya、Hitsumoto Tatsuro、Matsuoka Ken、Takashima Seiji、Amaki Makoto、Kanzaki Hideaki、Izumi Chisato、Ito Shin、Kitakaze Masafumi
    • Journal Title

      ESC Heart Failure

      Volume: 9 Issue: 1 Pages: 636-647

    • DOI

      10.1002/ehf2.13700

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed

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

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