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Elucidation of the mitochondrial activity regulation linked to the conversion from cell proliferation to differentiation

Research Project

Project/Area Number 19K10406
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57070:Developmental dentistry-related
Research InstitutionKyushu University

Principal Investigator

Kato Hiroki  九州大学, 歯学研究院, 助教 (30452709)

Co-Investigator(Kenkyū-buntansha) 佐藤 浩  九州大学, 歯学研究院, 助教 (00421313)
高山 扶美子  九州大学, 大学病院, 助教 (20795950)
増田 啓次  九州大学, 大学病院, 講師 (60392122)
廣藤 雄太  九州大学, 歯学研究院, 助教 (80759746)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywordsヒト脱落乳歯由来幹細胞 / 細胞分化 / ミトコンドリア / 歯髄幹細胞 / 幹細胞
Outline of Research at the Start

細胞の増殖から分化への転換に、ミトコンドリア活性の亢進が関与していることが明らかにされつつある。増殖から分化への転換時特異的なミトコンドリア活性制御機構の存在が考えられているが、その詳細は明らかにされていない。本研究では高増殖能と多分化能を持つヒト脱落乳歯由来幹細胞を用いて「細胞増殖時ならびに分化時におけるそれぞれのミトコンドリア活性制御因子の探索」を行い、これらを比較することで「増殖から分化への転換時特異的なミトコンドリア活性制御機構の解明」を目指す。

Outline of Final Research Achievements

It is becoming evident that mitochondrial activity is involved in cellular differentiation. However, the entire mechanism of mitochondrial activation during differentiation is still elusive. We analyzed the mechanism of mitochondrial activation during differentiation using stem cells from human exfoliated deciduous teeth (SHED), which have high proliferative and multilineage differentiation potential, as a differentiation model. We compared gene expression before and after SHED differentiation into neurons and discovered that the expression of several genes involved in mitochondrial activity regulation was altered. Therefore, these genes may have a role in SHED differentiation.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果は、ヒト脱落乳歯由来幹細胞を始めとした幹細胞を用いた組織・器官の再生医学を促進する基盤データになると考えます。近年の研究により、ミトコンドリアの機能低下が様々な難病の病態と関係することが明らかになってきました。しかし、その多くで有効な治療法が開発されていません。本研究成果は、これら難病の新規病態解明や治療法開発に応用可能であると考えます。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (1 results)

All 2022

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results)

  • [Journal Article] Dopamine-related oxidative stress and mitochondrial dysfunction in dopaminergic neurons differentiated from deciduous teeth-derived stem cells of children with Down syndrome2022

    • Author(s)
      Xiao Sun,Hiroki Kato,Hiroshi Sato,Xu Han,Yuta Hirofuji,Takahiro A. Kato,Yasunari Sakai,Shouichi Ohga,Satoshi Fukumoto,Keiji Masuda
    • Journal Title

      FASEB BioAdvances

      Volume: - Issue: 7 Pages: 454-467

    • DOI

      10.1096/fba.2021-00086

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

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