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Clarification of novel sympathetic nerve-independent pathophysiological interactions between heart and brain in cardiac remodeling

Research Project

Project/Area Number 20K08506
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

Otani Kentaro  国立研究開発法人国立循環器病研究センター, 研究所, 研究室長 (50470191)

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: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords周産期心筋症 / ナトリウム利尿ペプチド / 心肥大 / 授乳 / 臓器連環 / 心臓リモデリング / アルドステロン / 炎症細胞
Outline of Research at the Start

生体における動的恒常性は、内分泌、神経、免疫、循環システム等を介した相互作用的な複雑な臓器間機能ネットワーク(臓器連環)により維持されている。先般、我々は心臓ナトリウム利尿ペプチドの受容体GC-Aを欠損したマウス(GC-A-KO)が、授乳期に周産期心筋症様の心不全を呈することを見出した。また、GC-A-KOにおける周産期心筋症の病態形成メカニズムの解析から、心臓リモデリングにおいて脳-心臓間に交感神経非依存的な未知の臓器連環が存在する可能性を見出した。

Outline of Final Research Achievements

We have demonstrated that mice lacking guanylyl cyclase-A (GC-A-KO), a receptor for atrial and brain natriuretic peptides, exhibit the severe postpartum cardiac hypertrophy and cardiac dysfunction like postpartum cardiomyopathy (PPCM). The elevated plasma aldosterone level in lactating GC-A-KO and the disappearance of lactation-induced cardiac hypertrophy in GC-A-KO by the inactivation of neural aldosterone receptor depict that the neural aldosterone system might be involved in the lactation-induced cardiac hypertrophy. However, the underlying mechanisms remains unclear. The aim of this study was to clarify the mechanisms of lactation-induced cardiac hypertrophy in GC-A-KO, especially focusing on the novel pathophysiological interactions between brain and heart.

Academic Significance and Societal Importance of the Research Achievements

周産期心筋症は心疾患既往のない女性が妊娠後期から産褥期にかけて心不全を発症し、拡張型心筋症に類似した病態を呈する疾患であり、疾患特異的な診断および治療法は未だ存在しない。これまでの一連の研究の結果、周産期心筋症の発症機序が少しずつ明らかになりつつある。今後、本研究成果を基にした周産期心筋症に対する疾患特異的な診断・治療法の開発が期待される。

Report

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

    (11 results)

All 2022 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (4 results) (of which Invited: 3 results) Book (1 results) Patent(Industrial Property Rights) (1 results) (of which Overseas: 1 results)

  • [Int'l Joint Research] University of Copenhagen(デンマーク)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Endothelial natriuretic peptide receptor 1 play crucial role for acute and chronic blood pressure regulation by atrial natriuretic peptide2022

    • Author(s)
      Tokudome T, Otani K, Mao Y, Jensen LJ, Arai Y, Miyazaki T, Sonobe T, Pearson JT, Osaki T, Minamino N, Ishida J, Fukamizu A, Kawakami H, Onozuka D, Nishimura K, Miyazato M, Nishimura H.
    • Journal Title

      Hypertension

      Volume: 79 Issue: 7 Pages: 1409-1422

    • DOI

      10.1161/hypertensionaha.121.18114

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Molecular Mechanism of Blood Pressure Regulation through the Atrial Natriuretic Peptide2022

    • Author(s)
      Tokudome Takeshi、Otani Kentaro
    • Journal Title

      Biology

      Volume: 11 Issue: 9 Pages: 1351-1351

    • DOI

      10.3390/biology11091351

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] ANPによる血圧調節の分子メカニズム2021

    • Author(s)
      徳留健、大谷健太郎
    • Journal Title

      血管

      Volume: 44 Pages: 9-18

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] 妊娠中および産褥期における心臓ナトリウム利尿ペプチドの生理的意義の解明2021

    • Author(s)
      大谷健太郎、神谷千津子、徳留健
    • Journal Title

      循環器内科

      Volume: 89 Pages: 386-394

    • Related Report
      2020 Research-status Report
  • [Presentation] Deficiency of cardiac natriuretic peptide signaling promotes peripartum cardiomyopathy-like remodeling in the mouse heart2021

    • Author(s)
      Kentaro Otani
    • Organizer
      The 5th JCS Council Forum on Basic Cardio Vascular Research
    • Related Report
      2021 Research-status Report
  • [Presentation] 授乳期心臓リモデリングにおける心臓ナトリウム利尿ペプチド系の病態生理学的意義2021

    • Author(s)
      大谷健太郎
    • Organizer
      第25回日本心血管内分泌代謝学会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Physiological roles of endogenous natriuretic peptides during gestation and peripartum period2021

    • Author(s)
      大谷健太郎、徳留健
    • Organizer
      第24回 日本心血管内分泌代謝学会学術総会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Cardiac natriuretic peptides protect the heart from lactation-dependent remodeling2021

    • Author(s)
      大谷健太郎、神谷千津子、徳留健
    • Organizer
      第85回 日本循環器学会学術集会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Book] 循環器内科学レビュー 最新主要文献とガイドラインでみる 2022-232021

    • Author(s)
      神谷千津子、大谷健太郎
    • Total Pages
      432
    • Publisher
      総合医学社
    • ISBN
      9784883787463
    • Related Report
      2021 Research-status Report
  • [Patent(Industrial Property Rights)] 周産期心筋症治療剤2020

    • Inventor(s)
      大谷健太郎、徳留健、神谷千津子
    • Industrial Property Rights Holder
      国立循環器病研究センター、中外製薬株式会社
    • Industrial Property Rights Type
      特許
    • Filing Date
      2020
    • Related Report
      2020 Research-status Report
    • Overseas

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

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