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Mechanism of development of cardiac allograft vasculopathy following heart transplantation using genetically engineered MHC-defined miniature swine.

Research Project

Project/Area Number 18K08544
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 55010:General surgery and pediatric surgery-related
Research InstitutionKagoshima University

Principal Investigator

SEKIJIMA Mitsuhiro  鹿児島大学, 医用ミニブタ・先端医療開発研究センター, 特任助教 (20568589)

Co-Investigator(Kenkyū-buntansha) 山田 和彦  鹿児島大学, 総合科学域総合研究学系, 教授 (40241103)
佐原 寿史  鹿児島大学, 総合科学域総合研究学系, 准教授 (90452333)
岩永 健裕  鹿児島大学, 医用ミニブタ・先端医療開発研究センター, 特任助教 (40518916)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords移植・再生医療 / 移植心冠動脈病変 / 心移植 / MHC / 加齢 / 自然免疫 / 動脈硬化 / ミニブタ / ヒトアポリポ蛋白(a) / 動脈硬化モデルミニブタ / 前臨床研究 / 動脈硬化促進遺伝子導入MHC確立ミニブタ
Outline of Final Research Achievements

Since cardiac allograft vasculopathy (CAV) have a significant impact on chronic cardiac dysfunction and prognosis of the patients after heart transplantation, elucidation of the mechanisms of CAV and development of therapeutic strategies are very important. In this study, we aimed to elucidate the mechanism of CAV development, which is complicated by immunological (innate/acquired immunity) and non-immunological (atherosclerosis/age) factors, using MHC-inbred CLAWN miniature swine. The results showed that CAV did not develop in the MHC-matched heterotopic heart transplant model, suggesting that involvement of strong immune response or non-immunological factors need to be investigated by using atherosclerosis-inducing animals.

Academic Significance and Societal Importance of the Research Achievements

心臓移植後慢性期の心機能低下に大きな影響を与え、また生命予後も規定する因子である移植心冠動脈病変(CAV)に対し、病変が発症し進展する機序を解明することは、治療方法を開発するためにも最重要課題である。今回、実験結果を臨床応用に直結させることができる実験動物である主要組織適合性抗原(MHC)確立ミニブタを用いた研究によって、CAV発症に関連する因子の同定と研究展開の道筋を得ており、今後、治療方法の開発にも結び付く高い意義を有する成果であると考える。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (1 results)

All Other

All Remarks (1 results)

  • [Remarks] 医用ミニブタ・先端医療開発研究センターのホームページ

    • URL

      http://www.kufm.kagoshima-u.ac.jp/~xenotx/index.html

    • Related Report
      2019 Research-status Report

URL: 

Published: 2018-04-23   Modified: 2022-01-27  

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