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Regenerative potential of induced pluripotent stem cells derived from patients undergoing haemodialysis in kidney regeneration

Research Project

Project/Area Number 19K21307
Project/Area Number (Other) 18H06203 (2018)
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund (2019)
Single-year Grants (2018)
Review Section 0902:General internal medicine and related fields
Research InstitutionJikei University School of Medicine

Principal Investigator

SUSUMU TAJIRI  東京慈恵会医科大学, 医学部, 助教 (50646362)

Project Period (FY) 2018-08-24 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords慢性腎不全 / 腎臓再生 / 多能性幹細胞 / ネフロン前駆細胞 / iPS細胞 / 移植
Outline of Research at the Start

慢性腎臓病(Chronic kidney disease, CKD)に対する根本的な治療法は存在しない。唯一の治療方法は腎移植であるが、ドナーが不足しており、根本的な解決法には現時点ではなりえない。加えて、移植後には生涯にわたる免疫抑制剤の内服が必要となるため、移植後に健常人と同等の QOL を保つことができるとは言い難い。患者幹細胞から腎臓を再生することで、ドナー不足、拒絶反応の問題を解決することができると考えており、腎臓再生におけるCKD患者由来幹細胞の有用性の検証を行うことを本研究の目的とする。

Outline of Final Research Achievements

It has been shown that uremic state in CKD is toxic to somatic stem/progenitor cells affecting their differentiation and angiogenic potential. Recent studies reported that specific abnormalities caused by the non-inherited disease are often retained in induced pluripotent stem cell(iPSC)-derived products obtained from patients. Thus, it is indispensable to assess whether iPSCs derived from patients with CKD due to non-inherited disease have the ability to generate kidneys. We generated iPSCs from patients undergoing haemodialysis due to non-inherited disease (HD-iPSCs) or from healthy controls (HC-iPSCs). HD-iPSCs differentiated into nephron progenitor cells (NPCs) with similar efficiency to HC-iPSCs. Additionally, HD-iPSC-derived NPCs expressed comparable levels of NPC markers and differentiated into vascularised glomeruli upon transplantation into mice, as HC-iPSC-derived NPCs. Our results indicate the potential of HD-iPSCs as a feasible cell source for kidney regeneration.

Academic Significance and Societal Importance of the Research Achievements

慢性腎不全に対する根本的治療としては腎移植があるが、ドナー不足の問題から腎移植のみでは腎不全を克服することは難しい。また仮に腎移植をうけられた場合も生涯にわたり、免疫抑制剤の内服が必要になる。患者由来の多能性幹細胞から腎臓を再生し、移植することができれば、ドナー不足や免疫抑制剤の内服といった問題を克服することができる。本研究は、患者由来幹細胞由来の腎臓再生の可能性を示すものである。

Report

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

    (5 results)

All 2019 2018

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (4 results) (of which Invited: 2 results)

  • [Journal Article] Regenerative potential of induced pluripotent stem cells derived from patients undergoing haemodialysis in kidney regeneration2018

    • Author(s)
      Tajiri Susumu、Yamanaka Shuichiro、Fujimoto Toshinari、Matsumoto Kei、Taguchi Atsuhiro、Nishinakamura Ryuichi、Okano Hirotaka James、Yokoo Takashi
    • Journal Title

      Scientific Reports

      Volume: 8 Issue: 1 Pages: 1-12

    • DOI

      10.1038/s41598-018-33256-7

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 血液透析患者由来iPS細胞の腎再生利用案2019

    • Author(s)
      田尻 進
    • Organizer
      2019年日本透析医学会学術集会・総会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 腎臓再生における血液透析患者由来iPS細胞の有用性の検証2019

    • Author(s)
      田尻 進
    • Organizer
      2019年日本腎臓学会総会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 腎臓再生における血液透析患者由来iPS細胞の有用性の検証2019

    • Author(s)
      田尻進
    • Organizer
      日本腎臓学会総会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 血液透析患者由来iPS細胞の腎再生利用案2019

    • Author(s)
      田尻進
    • Organizer
      日本透析医学会学術集会総会
    • Related Report
      2018 Annual Research Report

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Published: 2018-08-27   Modified: 2024-03-26  

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