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Establishment of the new diagnostic method in mitochondrial cardiomyopathy

Research Project

Project/Area Number 19K08529
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53020:Cardiology-related
Research InstitutionHokkaido University

Principal Investigator

Takeda Atsuhito  北海道大学, 大学病院, 講師 (00374413)

Co-Investigator(Kenkyū-buntansha) 永井 礼子  北海道大学, 大学病院, 医員 (10622160)
山田 勇磨  北海道大学, 薬学研究院, 准教授 (60451431)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywordsミトコンドリア心筋症 / 電子顕微鏡 / Stereology / 免疫染色法 / 病理診断法 / 呼吸鎖酵素活性 / 免疫組織病理 / 呼吸鎖酵素複合体
Outline of Research at the Start

ミトコンドリア心筋症の病理学的診断はこれまで確立されていない。本研究ではミトコンドリア病モデルマウスを用いたミトコンドリア心筋症の心筋超微形態を定量的に評価し、呼吸鎖酵素複合体に対する抗体を用いた免疫染色法を併用することにより病理的診断が可能かどうかを検証する。ヒトにおいても心筋生検で採取した組織を用いて電顕、免疫染色を行うことでミトコンドリア心筋症の診断を確立する。

Outline of Final Research Achievements

Mitochondrial cardiomyopathy (MCM), one of the secondary cardiomyopathies, is diagnosed definitively by pathology, tissue biochemistry, and genetic testing, but there are no clear criteria for myocardial pathology. Therefore, we measured mitochondrial volume density in electron microscopy images and performed immunohistochemistry using respiratory chain enzyme antibodies in MCMs diagnosed definitively by clinical symptoms, genetic testing, and tissue biochemistry, and compared them with other cardiomyopathies other than MCM. Mitochondrial volume density was significantly higher in the MCM group, and immunohistochemistry showed decreased staining for Complex I or IV in the MCM group. This study allowed the pathological diagnosis of MCM using electron microscopy and immunohistochemistry, which is very useful for the pathological criteria of MCM.

Academic Significance and Societal Importance of the Research Achievements

ミトコンドリア心筋症の確定診断法について病理学的に確立し、二次性心筋症の鑑別診断に大きく貢献した。特に呼吸鎖酵素抗体による免疫染色法による診断法の開発により、ホルマリン固定のみの検体でも病理診断が可能であることを示した。ミトコンドリア心筋症は乳児発症例の生命予後が不良であり乳幼児突然死症候群の一因としても考えられている。したがって、本診断法はチャイルド・デス。レビューの死因究明にも応用できる。

Report

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

    (15 results)

All 2022 2021 2020 2019

All Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Open Access: 3 results) Presentation (5 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results) Book (4 results)

  • [Journal Article] Transplantation of MITO cells, mitochondria activated cardiac progenitor cells, to the ischemic myocardium of mouse enhances the therapeutic effect2022

    • Author(s)
      Daisuke Sasaki, Jiro Abe, Atsuhito Takeda, Hideyoshi Harashima and Yuma Yamada
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 4344-4357

    • DOI

      10.1038/s41598-022-08583-5

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Long-term prognosis and genetic background of cardiomyopathy in 223 pediatric mitochondrial disease patients.2021

    • Author(s)
      Imai-Okazaki A, Matsunaga A, Yatsuka Y, Nitta KR, Kishita Y, Sugiura A, Sugiyama Y, Fushimi T, Shimura M, Ichimoto K, Tajika M, Tominaga M, Ebihara T, Matsuhashi T, Tsuruoka T, Kohda M, Hirata T, Harashima H, Nojiri S, Takeda A, Nakaya A, Kogaki S, Sakata Y, Ohtake A, Murayama K, Okazaki Y.
    • Journal Title

      International Journal of Cardiology

      Volume: 341 Pages: 48-55

    • DOI

      10.1016/j.ijcard.2021.06.042

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A case report of Leigh syndrome diagnosed by endomyocardial biopsy.2021

    • Author(s)
      Maruo Y, Ueda Y, Murayama K, Takeda A
    • Journal Title

      European heart journal. Case reports

      Volume: - Issue: 2

    • DOI

      10.1093/ehjcr/ytaa582

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Advanced pathological study for definite diagnosis of mitochondrial cardiomyopathy2020

    • Author(s)
      Takeda A, Murayama K, Okazaki Y, Imai-Okazaki A, Ohtake A, Takakuwa E, Yamazawa H, Izumi G, Abe J, Nagai A, Taniguchi K, Sasaki D, Tsujioka T, John M Basgen
    • Journal Title

      Journal of Clinical Pathology

      Volume: - Issue: 6 Pages: 365-371

    • DOI

      10.1136/jclinpath-2020-206801

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A case undergoing cocktail therapy for cardiac involvement in Barth syndrome.2020

    • Author(s)
      Abe J, Yamaguchi T, Matsuzawa M, Kobayashi I, Takeda A
    • Journal Title

      Pediatrics International

      Volume: 62 Issue: 12 Pages: 1393-1395

    • DOI

      10.1111/ped.14342

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cardiomyopathy in children with mitochondrial disease: Prognosis and genetic background.2019

    • Author(s)
      Imai-Okazaki A, Kishita Y, Kohda M, Mizuno Y, Fushimi T, Matsunaga A, Yatsuka Y, Hirata T, Harashima H, Takeda A, Nakaya A, Sakata Y, Kogaki S, Ohtake A, Murayama K, Okazaki Y.
    • Journal Title

      Int J Cardiol

      Volume: 279 Pages: 115-121

    • DOI

      10.1016/j.ijcard.2019.01.017

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Mitochondria-activated myocardial progenitor cell (MITO cell) transplantation therapy in a mouse model of ischemia and reperfusion2021

    • Author(s)
      Daisuke Sasaki, Atsuhito Takeda, et al.
    • Organizer
      54th Annual Meeting of the Association for European Paediatric and Congenital Cardiology
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Challenging in diagnosis and treatment of mitochondrial cardiomyopathy2020

    • Author(s)
      Atsuhito Takeda
    • Organizer
      Japan Circulation Society
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Advanced pathologic study for definite diagnosis of mitochondrial cardiomyopathy2020

    • Author(s)
      Atsuhito Takeda
    • Organizer
      European Society of Cardiology Congress 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Challenging in diagnosis and management of mitochondrial cardiomyopathy2020

    • Author(s)
      Atsuhito Takeda
    • Organizer
      JSPCCS-AHA Joint session
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 小児心筋症の原因診断における心筋生検の適応と役割2019

    • Author(s)
      武田 充人
    • Organizer
      日本小児循環器学会
    • Related Report
      2019 Research-status Report
  • [Book] 循環器診療コンプリート 心筋症2021

    • Author(s)
      北岡 裕章
    • Total Pages
      272
    • Publisher
      学研メディカル秀潤社
    • ISBN
      4780904072
    • Related Report
      2021 Annual Research Report
  • [Book] 小児科医に知ってほしいミトコンドリア病UPDATE 小児科診療82巻4号2019

    • Author(s)
      武田 充人
    • Total Pages
      127
    • Publisher
      診断と治療社
    • Related Report
      2019 Research-status Report
  • [Book] ザ・マニュアル 心不全のセット検査2019

    • Author(s)
      武田 充人
    • Total Pages
      169
    • Publisher
      メジカルビュー社
    • Related Report
      2019 Research-status Report
  • [Book] 実は知らない循環器希少疾患 どう診る?どう対応する?2019

    • Author(s)
      武田 充人
    • Total Pages
      213
    • Publisher
      南江堂
    • Related Report
      2019 Research-status Report

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

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