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Japan-U.S. Collaboration for Development of Ex Vivo Heart Perfusion Incorporating Ventricular Assist Device Technologies

Research Project

Project/Area Number 19H03723
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 55010:General surgery and pediatric surgery-related
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Sakota Daisuke  国立研究開発法人産業技術総合研究所, 生命工学領域, 主任研究員 (40588670)

Co-Investigator(Kenkyū-buntansha) 木賀田 哲人  防衛医科大学校(医学教育部医学科進学課程及び専門課程、動物実験施設、共同利用研究施設、病院並びに防衛, 解剖学, 助教 (70886655)
大内 克洋  東京医科歯科大学, 大学院医歯学総合研究科, 寄附研究部門准教授 (20322084)
新井川 弘道  東北大学, 加齢医学研究所, 非常勤講師 (80636027)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2021: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2020: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Keywords移植 / 臓器保存 / 臓器機能評価 / 心臓力学 / 代謝 / 補助人工心臓 / 心臓移植 / 体外心臓灌流 / 左心室補助人工心臓 / 心拍同期制御法 / 臓器保存技術 / 生体光計測
Outline of Research at the Start

ドナー心臓の保存と、移植前にその機能を評価するために行う体外心臓灌流(Ex Vivo Heart Perfusion: EVHP)が欧米で注目されている。しかし現在臨床心移植で使用されているEVHPシステムは、摘出後の心臓の保存と評価の両面において十分な役割を果たしているとは言い難い。そこで補助人工心臓(Ventricular Assist Device : VAD)制御技術と血液光イメージング技術によって、心臓にとって負担なく長期安全に心機能を明瞭に評価できるEVHPの開発を行う。

Outline of Final Research Achievements

Ex vivo heart perfusion (EVHP) is clinically used in U.S. and Europe to preserve donor hearts and to evaluate their suitability for transplantation. Historically, there have been two types of perfusion modes: “resting mode”, in which perfusion pressure is applied to the aorta and only coronary perfusion is performed, and “working mode”, in which perfusate flows into the left atrium and the heart generates the cardiac output. Herein, we have developed a left ventricular assist device (LVAD). We have newly developed “left ventricular assist device (LVAD) mode” as a co-pulse left ventricular unloading in a working mode which incorporates a left ventricular assist device (LVAD). In a 6-hour EVHP using a pig heart, the developed LVAD mode showed better preservation of cardiac function compared to the resting and working modes.

Academic Significance and Societal Importance of the Research Achievements

ドナーから摘出した心臓の冷保存限界は約4時間しかない。EVHPは37℃灌流液で灌流するこで長時間保存、移植適合性評価、治療等の未来移植医療の技術として期待されているが、現状欧米で臨床使用されているEVHP(Resting mode)は保存と評価の両面において十分な機能を有しているとは言い難い。LVAD modeはWorking modeと同様の左心房流入があることで心筋代謝活動を活性かせエネルギー産生を促すが、左心室収縮に伴うエネルギー消費はLVADで抑制することで更なる長時間保存が可能な灌流法であり、心臓保存において前負荷は不要で冠灌流さえ行えば良いという既存の固定観念を覆した成果を得た。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Products Report
  • Research Products

    (16 results)

All 2023 2022 2021 2019 Other

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

  • [Int'l Joint Research] Cleveland Clinic(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Cleveland Clinic(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Cleveland Clinic Foundation(米国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Left ventricular assist device mode : co-pulse left ventricular unloading in a working mode of ex vivo heart perfusion2023

    • Author(s)
      Daisuke Sakota, Ryo Kosaka, Eiki Nagaoka, Katsuhiro Ohuchi, Tomoki Tahara, Hirokuni Arai, Ichiro Sakanoue, Kenneth R McCurry, Toshihiro Okamoto
    • Journal Title

      The Journal of Heart and Lung Transplantation

      Volume: 42 Issue: 6 Pages: 707-715

    • DOI

      10.1016/j.healun.2023.01.009

    • Related Report
      Products Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Left Ventricular Assist Device Mode: Co-Pulse Left Ventricular Unloading in Working Mode of Ex Vivo Heart Perfusion2022

    • Author(s)
      Sakota D.、Kosaka R.、Nagaoka E.、Ohuchi K.、Tahara T.、Arai H.、Sakanoue I.、McCurry K.R.、Okamoto T.
    • Journal Title

      The Journal of Heart and Lung Transplantation

      Volume: 41 Issue: 4 Pages: S98-S99

    • DOI

      10.1016/j.healun.2022.01.229

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 日米医工連携による補助人工心臓技術を組込んだ体外心臓灌流システムの開発2022

    • Author(s)
      迫田大輔、小阪亮、長岡英気、大内克洋、田原禎生、荒井裕国、Kenneth R. McCurry、坂之上一朗、岡本俊宏
    • Journal Title

      人工臓器

      Volume: 51

    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ドナー心臓の長期保存と心機能評価可能な体外心臓灌流装置開発2022

    • Author(s)
      迫田大輔
    • Organizer
      第34回バイオエンジニアリング講演会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Left Ventricular Assist Device Mode: Co-Pulse Left Ventricular Unloading in Working Mode of Ex Vivo Heart Perfusion2022

    • Author(s)
      Sakota D.、Kosaka R.、Nagaoka E.、Ohuchi K.、Tahara T.、Arai H.、Sakanoue I.、McCurry K.R.、Okamoto T.
    • Organizer
      The International Society for Heart and Lung Transplantation
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 胸部臓器移植医療に貢献する体外臓器灌流システムの開発2022

    • Author(s)
      迫田大輔、小阪亮、新井川弘道、長岡英気、大内克洋、田原禎生、荒井裕国、Kenneth R. McCurry、坂之上一朗、岡本俊宏
    • Organizer
      第86回日本循環器学会学術集会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 日米医工連携による補助人工心臓技術を組込んだ体外心臓灌流システムの開発2021

    • Author(s)
      迫田大輔、小阪亮、長岡英気、大内克洋、田原禎生、荒井裕国、Kenneth R. McCurry、坂之上一朗、岡本俊宏
    • Organizer
      第59回日本人工臓器学会大会
    • Related Report
      2021 Annual Research Report
  • [Remarks] 機能低下を最小限に移植用心臓を長時間保存せよ

    • URL

      https://medical.nikkeibp.co.jp/leaf/mem/pub/report/t356/202204/574307.html

    • Related Report
      2021 Annual Research Report
  • [Remarks] 第59回日本人工臓器学会大会 大会賞最優秀賞

    • URL

      http://jsao59.umin.jp/con_award.html

    • Related Report
      2021 Annual Research Report
  • [Remarks] researchmap

    • URL

      https://researchmap.jp/daisuke_sakota

    • Related Report
      2019 Annual Research Report
  • [Remarks] 産総研 健康医工学研究部門 人工臓器研究グループ

    • URL

      https://unit.aist.go.jp/hmri/group/ao/index.html

    • Related Report
      2019 Annual Research Report
  • [Patent(Industrial Property Rights)] EX VIVO HEART PERFUSION WITH VENTRICULAR ASSIST DEVICES2023

    • Inventor(s)
      迫田 大輔、岡本 俊宏
    • Industrial Property Rights Holder
      国立研究開発法人産業技術総合研究所、The Cleveland Clinic Foundation
    • Industrial Property Rights Type
      特許
    • Filing Date
      2023
    • Related Report
      Products Report
    • Overseas
  • [Patent(Industrial Property Rights)] 体液の光学観察方法及びその観察装置2019

    • Inventor(s)
      小阪亮, 迫田大輔
    • Industrial Property Rights Holder
      産業技術総合研究所
    • Industrial Property Rights Type
      特許
    • Filing Date
      2019
    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2025-03-27  

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