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Preclinical experiments to elucidate the protective effect and mechanism of kidney transplantation by combined administration of gaseous signaling agents

Research Project

Project/Area Number 20K09542
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56030:Urology-related
Research InstitutionKagoshima University

Principal Investigator

ARIYOSHI Yuichi  鹿児島大学, 先端科学研究推進センター, 学外協力研究者 (10643520)

Co-Investigator(Kenkyū-buntansha) 佐原 寿史  鹿児島大学, 総合科学域共同学系, 准教授 (90452333)
関島 光裕  鹿児島大学, 先端科学研究推進センター, 協力研究者 (20568589)
岩永 健裕  東京医科歯科大学, 統合研究機構, 助教 (40518916)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords移植・再生 / 虚血再灌流障害 / 腎移植 / ミニブタ / 一酸化炭素 / 硫化水素 / 心停止ドナー / 前臨床実験 / 移植・再生医療
Outline of Research at the Start

本研究は、臨床医療に即した心停止ドナーからの臓器移植を想定した前臨床ミニブタ腎移植実験モデルを用いて、ガス状シグナル物質であるCOやH2Sを複合的に投与することによって、ドナー臓器保存時に直接投与するという高い安全性のもとで、IRI抑制に代表される急性障害のみならず、臓器生着期間の延長効果の評価を行うとともに、詳細な作用機序の解明を目指すものである。

Outline of Final Research Achievements

The shortage of donor organs for transplantation remains critical, and expanding the donor pool is a social responsibility of transplant physicians. One of the strategies is to expand the indications for donation after circulatory death. However, it is important to control ischemia-reperfusion injury, especially in the early postoperative period, to prevent progression to acute kidney injury or chronic graft failure. We have extended the previous efficacy of carbon monoxide and hydrogen sulfide and evaluated the applicability of these gases in renal transplantation. Although we have not been able to demonstrate clear efficacy in kidney transplantation, we have been able to accumulate a number of fundamental data for the development of new treatment methods, including differences in efficacy depending on the method of administration and target organ, as well as the validity of the model used for evaluation.

Academic Significance and Societal Importance of the Research Achievements

ドナー臓器数の絶対的な不足という移植医療の最大の課題を克服するための一つの対策として、術後の虚血再灌流障害を抑制する新たな方法を、実験結果を臨床応用に直結させることができる主要組織適合性抗原(MHC)確立ミニミニブタを用いた評価により行った。一酸化炭素や硫化水素の腎移植での有効性は十分ではなかったものの、投与法、臓器や年齢による効果の差異など、様々な観点からの評価につながる基礎的結果を得ており、大動物を用いた研究の発展に寄与する成果を得た。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (2 results)

All 2023 2022

All Journal Article (1 results) Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] 一酸化炭素の臓器移植への応用2023

    • Author(s)
      佐原寿史
    • Journal Title

      医療ガス情報ファイル

      Volume: 21 Pages: 4-15

    • Related Report
      2022 Research-status Report
  • [Presentation] Does postoperative inhalation of carbon monoxide prolong pulmonary allograft survival in miniature swine?2022

    • Author(s)
      Sahara H, Sekijima M, Iwanaga T, Ichinari Y, Tasaki M, Takeuchi K, Shimizu A, Yamada K.
    • Organizer
      Transplantation Science Symposium (TSS) Asian Regional Meeting
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2025-01-30  

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