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Development of new treatments for cardiomyopathy and heart failure targeting mechanosensor channels

Research Project

Project/Area Number 20K08462
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53020:Cardiology-related
Research InstitutionNational Cardiovascular Center Research Institute

Principal Investigator

Iwata Yuko  国立研究開発法人国立循環器病研究センター, 研究所, 非常勤研究員 (80171908)

Co-Investigator(Kenkyū-buntansha) 泉 知里  国立研究開発法人国立循環器病研究センター, 病院, 部門長 (70768100)
伊藤 慎  国立研究開発法人国立循環器病研究センター, 病院, 室長 (20796560)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords心不全 / 心筋症
Outline of Research at the Start

拡張型心筋症また虚血や高血圧などに起因する重症心不全を治癒する究極的な治療法はない。本研究では、病態の特徴である持続的なCa2+濃度上昇に着目し、有力な誘因蛋白質、メカノセンサーチャネル(TRPV2)の心筋における生理的、病態的意義を明確にし、TRPV2が心不全の有力な治療標的になることを確定することを目標としている。そのため病態心筋におけるTRPV2活性化機構の解明、TRPV2特異的阻害ツールによる心不全モデル動物治療効果の検討並びに阻害機構の解明、既販阻害薬を用いた臨床研究を通し、心不全発症機構の本質に迫るとともにTRPV2の構造・機能解析に基づく最良の新規心不全治療法の開発を目指す。

Outline of Final Research Achievements

To clarify the pathophysiological significance of the calcium-permeable channel TRPV2 in cardiomyopathy and heart failure, and to determine its potential as a therapeutic target, TRPV2 activation was inhibited in animal models of myocardial ischemia-reperfusion injury and aortic banding-induced heart failure, resulting in a suppression of onset and progression of these conditions. Additionally, the effectiveness of a TRPV2 inhibitor was investigated in advanced-stage heart failure muscular dystrophy patients, with a significant difference observed in the rate of change of BNP, a serum marker of heart failure. While the surface expression of TRPV2 on monocytes and PGD2 metabolites in urine were increased in muscular dystrophy patients, they were found to decrease after 4 and 12 weeks of drug administration, indicating that TRPV2 inhibitors have an inhibitory effect on inflammation associated with heart failure.

Academic Significance and Societal Importance of the Research Achievements

研究結果は、TRPV2が心筋症・心不全の病態生理に関与していることを示唆している。さらに、TRPV2を抑制することで心筋虚血再灌流傷害や大動脈狭窄心不全の発症及び進展が抑制されることが判明した。また、TRPV2阻害薬が心不全に伴う炎症を抑制する作用があることも示されたため、将来的にはTRPV2を治療標的とした心筋症・心不全の治療法が開発される可能性が高い。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (21 results)

All 2023 2022 2021 2020 2019

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (12 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Book (1 results) Patent(Industrial Property Rights) (3 results) (of which Overseas: 1 results)

  • [Journal Article] Impact of the TRPV2 Inhibitor on Advanced Heart Failure in Patients with Muscular Dystrophy: Exploratory Study of Biomarkers Related to the Efficacy of Tranilast2023

    • Author(s)
      Takahashi Chisato、Oishi Mariko、Iwata Yuko、Maekawa Keiko、Matsumura Tsuyoshi
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 24 Issue: 3 Pages: 2167-2167

    • DOI

      10.3390/ijms24032167

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inhibition of TRPV2 Channel Activation by NK-4, a Cryptocyanine Dye2022

    • Author(s)
      Koya-Miyata Satomi、Kohno Keizo、Morimoto Takashi、Harashima Akira、Iwata Yuko、Ariyasu Toshio
    • Journal Title

      YAKUGAKU ZASSHI

      Volume: 142 Issue: 5 Pages: 535-546

    • DOI

      10.1248/yakushi.21-00219

    • NAID

      130008164774

    • ISSN
      0031-6903, 1347-5231
    • Year and Date
      2022-05-01
    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tranilast for advanced heart failure in patients with muscular dystrophy: a single-arm, open-label, multicenter study2022

    • Author(s)
      Matsumura Tsuyoshi、Hashimoto Hiroya、Sekimizu Masahiro、Saito Akiko M.、Motoyoshi Yasufumi、Nakamura Akinori、Kuru Satoshi、Fukudome Takayasu、Segawa Kazuhiko、Takahashi Toshiaki、Tamura Takuhisa、Komori Tetsuo、Watanabe Chigusa、Asakura Masanori、Kimura Koichi、Iwata Yuko
    • Journal Title

      Orphanet Journal of Rare Diseases

      Volume: 17 Issue: 1

    • DOI

      10.1186/s13023-022-02352-3

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Production of TRPV2-targeting functional antibody ameliorating dilated cardiomyopathy and muscular dystrophy in animal models2020

    • Author(s)
      Iwata Yuko、Wakabayashi Shigeo、Ito Shin、Kitakaze Masafumi
    • Journal Title

      Laboratory Investigation

      Volume: 100 Issue: 2 Pages: 324-337

    • DOI

      10.1038/s41374-019-0363-1

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Study Protocol for a Multicenter, Open-Label, Single-Arm Study of Tranilast for Cardiomyopathy of Muscular Dystrophy2019

    • Author(s)
      MATSUMURA TSUYOSHI、HASHIMOTO HIROYA、SEKIMIZU MASAHIRO、SAITO AKIKO M.、IWATA YUKO、ASAKURA MASANORI、KIMURA KOICHI、TAMURA TAKUHISA、FUNATO MICHINORI、SEGAWA KAZUHIKO、OGATA KATSUHISA、NAKAJIMA TAKASHI
    • Journal Title

      The Kurume Medical Journal

      Volume: 66 Issue: 2 Pages: 121-126

    • DOI

      10.2739/kurumemedj.MS662006

    • NAID

      130008066540

    • ISSN
      0023-5679, 1881-2090
    • Year and Date
      2019-06-30
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 自然発症糖尿病ラット(GKラット)左心室由来心筋細胞の病態生理学的特徴2023

    • Author(s)
      岩田裕子, 土持裕胤, ピアソンジェームズ
    • Organizer
      日本生理学会第100回記念大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 筋ジストロフィー心不全に対するTRPV2阻害治療2022

    • Author(s)
      松村 剛, 岩田裕子, 橋本大哉
    • Organizer
      日本内科学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 筋ジストロフィー心筋障害に対するTRPV2阻害薬の有効性の指標となるバイオマーカーの探索研究2022

    • Author(s)
      髙橋知里, 大石真理子, 岩田裕子, 前川京子, 松村 剛
    • Organizer
      日本薬物動態学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 新規TRPV2チャネル阻害薬の開発2022

    • Author(s)
      岩田裕子
    • Organizer
      第96回日本薬理学会年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ヒト筋変性疾患治療を目指したCa2+透過チャネルTRPV2の機能性抗体の開発2022

    • Author(s)
      岩田裕子, ピアソンジェームズ
    • Organizer
      第96回日本薬理学会年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 筋ジストロフィー心不全に対するTRPV2阻害薬治療2022

    • Author(s)
      松村剛、岩田裕子、橋本大哉
    • Organizer
      第119回日本内科学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] A single-arm, open-label, multicenter study of tranilast for advanced heart failure in patients with muscular dystrophy2022

    • Author(s)
      MATSUMURA TSUYOSHI、HASHIMOTO HIROYA、SEKIMIZU MASAHIRO、SAITO AKIKO M.、IWATA YUKO、ASAKURA MASANORI、KIMURA KOICHI、TAMURA TAKUHISA、FUNATO MICHINORI、SEGAWA KAZUHIKO、OGATA KATSUHISA、NAKAJIMA TAKASHI
    • Organizer
      World Muscle Society 2022
    • Related Report
      2021 Research-status Report
  • [Presentation] 筋ジストロフィー心筋障害に対するTRPV2阻害薬他施設共同非盲検単群試験2021

    • Author(s)
      松村剛、小森哲夫、瀬川和彦、中村昭則、久米聡、渡辺千種、福留隆泰、本吉慶史、田村拓久、高橋俊明、橋本大哉、岩田裕子
    • Organizer
      第8回筋ジストロフィー医療研究会
    • Related Report
      2021 Research-status Report
  • [Presentation] Pathophysiological role of Ca2+ permeable channel TRPV2 in myocardial ischemia reperfusion injury2021

    • Author(s)
      Iwata Y,Wakabayashi S, Pearson J
    • Organizer
      第94回日本薬理学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] TRPV2 channel as a promising therapeutic target for heart failure2020

    • Author(s)
      Iwata Y, Wakabayashi S, Ito S, Kitakaze M
    • Organizer
      International Symposium on TRP Ion Channel at Wakayama
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 感光色素NK-4の抗アレルギー作用:肥満細胞のTRPV2阻害および脱顆粒抑制2020

    • Author(s)
      宮田聡美、原島哲、有安利夫、三鼓仁志、岩田裕子、牛尾慎平
    • Organizer
      日本薬学会第140年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 心筋症モデル動物の病態を改善するCa2+透過チャネルTRPV2の機能的抗体の作成2020

    • Author(s)
      岩田裕子、若林繁夫、伊藤慎、北風政史
    • Organizer
      第93回日本薬理学会年会
    • Related Report
      2020 Research-status Report
  • [Book] 別冊 医学のあゆみ TRPチャネルのすべて2020

    • Author(s)
      岩田裕子
    • Publisher
      医歯薬出版
    • Related Report
      2020 Research-status Report
  • [Patent(Industrial Property Rights)] 抗ヒトTRPV2抗体2022

    • Inventor(s)
      岩田裕子
    • Industrial Property Rights Holder
      岩田裕子
    • Industrial Property Rights Type
      特許
    • Filing Date
      2022
    • Related Report
      2021 Research-status Report
    • Overseas
  • [Patent(Industrial Property Rights)] 抗hTRPV2完全ヒト抗体2022

    • Inventor(s)
      岩田裕子
    • Industrial Property Rights Holder
      岩田裕子
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2022-022298
    • Filing Date
      2022
    • Related Report
      2021 Research-status Report
  • [Patent(Industrial Property Rights)] ヒトTRPV2抗体2020

    • Inventor(s)
      岩田裕子ら
    • Industrial Property Rights Holder
      岩田裕子ら
    • Industrial Property Rights Type
      特許
    • Filing Date
      2020
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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