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Energy metabolism of idiopathic pulmonary arterial hypertension

Research Project

Project/Area Number 20K08424
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

Akagi Satoshi  岡山大学, 医歯薬学域, 助教 (60601127)

Co-Investigator(Kenkyū-buntansha) 中村 一文  岡山大学, 医歯薬学域, 准教授 (10335630)
吉田 賢司  岡山大学, 医歯薬学域, 講師 (70532761)
伊藤 浩  岡山大学, 医歯薬学域, 教授 (90446047)
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: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords肺動脈性肺高血圧症 / 肺動脈平滑筋細胞 / エネルギー代謝 / 糖代謝 / ミトコンドリア呼吸 / ミトコンドリア代謝 / 解糖系 / 肺高血圧症 / ピルビン酸脱水素酵素 / ピルビン酸脱水素酵素キナーゼ / 乳酸脱水素酵素 / 特発性肺動脈性肺高血圧症 / 肺移植 / 肺高血圧治療薬
Outline of Research at the Start

特発性肺動脈性肺高血圧症(Idiopathic pulmonary arterial hypertension: IPAH)は、肺動脈狭窄や閉塞により著明な肺動脈圧の上昇をきたす予後不良な疾患である。治療薬の進歩により短期予後の改善はみられているが、長期予後の改善は得られていない。肺動脈狭窄や閉塞には肺動脈平滑筋細胞の過剰増殖やアポトーシス抵抗性で生じる肺血管リモデリングの関与がある。この肺血管リモデリングの機序としてエネルギー代謝障害が示唆されているが、十分に解明されていない。そのためIPAHにおける肺動脈平滑筋細胞のエネルギー代謝障害を明らかにすれば、新たな治療標的となり長期予後の改善につながる可能性がある。

Outline of Final Research Achievements

Pulmonary artery smooth muscle cells (PASMCs) of pulmonary arterial hypertension (PAH) have similar metabolic characteristics of cancer cells. We investigated metabolic state of PAH-PASMCs under normoxia and hypoxia. Glycolytic switch was occurred under normoxia and mitochondrial respiration was preserved under hypoxia in PAH-PASMCs, which resulted in increase of ATP production in PAH-PASMCs under hypoxia. These characteristics of energy metabolism in PAH-PASMCs under normoxia and hypoxia might be involved in the pathogenesis of PAH.

Academic Significance and Societal Importance of the Research Achievements

PAHの肺動脈平滑筋細胞において、今回明らかになったエネルギー代謝の特性はこれまで知られていない。そのためこの特性に介入できる薬剤を開発できれば、新たなPAHの治療薬として期待できる。

Report

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

    (15 results)

All 2022 2021 2020

All Journal Article (9 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 9 results,  Open Access: 9 results) Presentation (6 results) (of which Invited: 3 results)

  • [Journal Article] Quantification of Lung Perfusion Blood Volume in Dual-Energy Computed Tomography in Patients with Pulmonary Hypertension2022

    • Author(s)
      Ugawa Satoko、Akagi Satoshi、Ejiri Kentaro、Nakamura Kazufumi、Ito Hiroshi
    • Journal Title

      Life

      Volume: 12 Issue: 5 Pages: 684-684

    • DOI

      10.3390/life12050684

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of Dual Initial Combination Therapy With Macitentan Plus Riociguat or Macitentan Plus Selexipag on Hemodynamics in Patients With Pulmonary Arterial Hypertension (SETOUCHI-PH Study) ― Protocol of a Multicenter Randomized Control Trial ―2021

    • Author(s)
      Akagi Satoshi、Dohi Yoshihiro、Ishikawa Kaori、Kubota Kayoko、Horimoto Koshin、Yagi Shusuke、Hirata Tetsuo、Yamamoto Eiichiro、Ito Hiroshi、Nakamura Kazufumi
    • Journal Title

      Circulation Reports

      Volume: 3 Issue: 2 Pages: 105-109

    • DOI

      10.1253/circrep.CR-20-0133

    • NAID

      130007985496

    • ISSN
      2434-0790
    • Year and Date
      2021-02-10
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Serum and Pulmonary Uric Acid in Pulmonary Arterial Hypertension2021

    • Author(s)
      Savale L、Akagi S、Tu L、Cumont A、Thuillet R、Phan C、Le Vely B、Berrebeh N、Huertas A、Jais X、Cottin V、Chaouat A、Tromeur C、Boucly A、Jutant Etienne M、Mercier O、Fadel E、Montani D、Sitbon O、Humbert M、Tamura Y、Guignabert C
    • Journal Title

      European Respiratory Journal

      Volume: 57 Issue: 2 Pages: 2000332-2000332

    • DOI

      10.1183/13993003.00332-2020

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Efficacy of shear wave elastography for evaluating right ventricular myocardial fibrosis in monocrotaline-induced pulmonary hypertension rats2021

    • Author(s)
      Nakayama Rie、Takaya Yoichi、Nakamura Kazufumi、Kondo Megumi、Kobayashi Kaoru、Ohno Yuko、Amioka Naofumi、Akagi Satoshi、Yoshida Masashi、Miyoshi Toru、Ito Hiroshi
    • Journal Title

      Journal of Cardiology

      Volume: in press Issue: 1 Pages: 17-23

    • DOI

      10.1016/j.jjcc.2021.01.015

    • NAID

      120007189478

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A case of a middle-aged patient with a ventricular septal defect complicated by severe pulmonary hypertension-stepwise surgical repair with pulmonary vasodilators-2021

    • Author(s)
      Kanai Anna、Koitabashi Norimichi、Akagi Satoshi、Sorimachi Hidemi、Ishibashi Yohei、Nagasaka Takashi、Takama Noriaki、Soma Katsura、Yao Atsushi、Kasahara Shingo、Kurabayashi Masahiko
    • Journal Title

      Journal of Cardiology Cases

      Volume: 24 Issue: 3 Pages: 131-135

    • DOI

      10.1016/j.jccase.2021.02.013

    • NAID

      120007039930

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Chemotherapy Improved Pulmonary Arterial Hypertension in a Patient with Chronic-Active Epstein-Barr Virus Infection2020

    • Author(s)
      Akagi S, Miki T, Sando Y, Fujii N, Sarashina T, Nakamura K, Ito H
    • Journal Title

      International Heart Journal

      Volume: 61 Issue: 1 Pages: 191-194

    • DOI

      10.1536/ihj.19-419

    • NAID

      130007792873

    • ISSN
      1349-2365, 1349-3299
    • Year and Date
      2020-01-31
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Marked Reduction of Pulmonary Artery Pressure After Registration for Lung Transplantation Is Associated With Long-Term Survival in Patients With Pulmonary Arterial Hypertension ― Cohort Study ―2020

    • Author(s)
      Akagi S, Matsubara H, Nakamura K, Oto T, Ejiri K, Ito H
    • Journal Title

      Circulation Journal

      Volume: 84 Issue: 2 Pages: 245-251

    • DOI

      10.1253/circj.CJ-19-0784

    • NAID

      130007789878

    • ISSN
      1346-9843, 1347-4820
    • Year and Date
      2020-01-24
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inhibitory effects of RAGE-aptamer on development of monocrotaline-induced pulmonary arterial hypertension in rats2020

    • Author(s)
      Nakamura Kazufumi、Akagi Satoshi、Ejiri Kentaro、Yoshida Masashi、Miyoshi Toru、Sakaguchi Masakiyo、Amioka Naofumi、Suastika Luh Oliva Saraswati、Kondo Megumi、Nakayama Rie、Takaya Yoichi、Higashimoto Yuichiro、Fukami Kei、Matsubara Hiromi、Ito Hiroshi
    • Journal Title

      Journal of Cardiology

      Volume: - Issue: 1 Pages: 12-16

    • DOI

      10.1016/j.jjcc.2020.12.009

    • NAID

      120007182876

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Transcatheter closure of patent foramen ovale: Current evidence and future perspectives2020

    • Author(s)
      Akagi T
    • Journal Title

      J Cardiol

      Volume: 77(1) Issue: 1 Pages: 3-9

    • DOI

      10.1016/j.jjcc.2020.09.005

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Current Trends in Treatment of Pulmonary Hypertension2022

    • Author(s)
      赤木 達
    • Organizer
      第86回日本循環器学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Drug Interaction between prostaglandin I2 and endothelin receptor antagonist via IP receptor in pulmonary hypertension2021

    • Author(s)
      Satoshi Akagi
    • Organizer
      第85回日本循環器学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] シャント性心疾患関連PAH治療におけるTreat and Repairの実践2021

    • Author(s)
      赤木達
    • Organizer
      第5回肺高血圧・肺循環学会学術集会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 現在の治療トレンドと今後期待される治療法2021

    • Author(s)
      赤木達
    • Organizer
      第25回日本心不全学会学術集会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] ACHD-PHの院内連携と治療2020

    • Author(s)
      赤木 達
    • Organizer
      第22回日本成人先天性心疾患学会総会・学術集会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Characteristics of Energy Metabolism in Pulmonary Artery Smooth Muscle Cells from Patients with Idiopathic Pulmonary Arterial Hypertension2020

    • Author(s)
      Satoshi Akagi, Kazufumi Nakamura, Kentaro Ejiri, Satoshi Hirohata, Hiroshi Itoh
    • Organizer
      第84回日本循環器学会学術集会
    • Related Report
      2020 Research-status Report

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

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