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Identification of mesenchymal stem cell, which gives rise to hematopoiesis supporting cells

Research Project

Project/Area Number 19K08865
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 54010:Hematology and medical oncology-related
Research InstitutionShimane University

Principal Investigator

Miyagi Satoru  島根大学, 学術研究院医学・看護学系, 准教授 (20400997)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords間葉系幹細胞 / FZD5 / 造血支持細胞 / 造血幹細胞 / ニッチ / 細胞系譜追跡
Outline of Research at the Start

骨髄中の一部の間質細胞は血液細胞の産生を助ける働きを持つ(この間質細胞を造血支持細胞と呼ぶ。)これまでに、複数の造血支持細胞が同定されているが、これら造血支持細胞間の関係性や造血支持細胞がどのように生まれて来るのかは明らかになっていない。本研究では、造血支持細胞の元となると予想される間葉系幹細胞とその子孫細胞を別個に標識可能なマウスを用いて、間葉系幹細胞から造血支持細胞が産生される過程を明らかにする。

Outline of Final Research Achievements

A previous study showed that the FZD5 expression distinguishes immature human mesenchymal stem cells (MSC) in vitro, and the FZD5 is crucial for maintaining the stemness of MSC. Therefore, we generated a transgenic mouse (Fzd5-CreERT-tFP635) that expresses CreERT and the TurboFP635 (tFP635) under the transcriptional control of the Fzd5 gene. In the bone marrow (BM) of the mice, tFP635 was preferentially expressed in MSC, Leptin receptor-expressing MSC (LepR+MSCs), and some Pdgfrα+ Sca1+ MSC (PαS). Inducible lineage tracing with the strain at the adult stage showed that Fzd5-expressing cells and their descendants were progressively dominant in LepR+MSC and PαS, and the cells persisted for one year. These results showed that our transgenic mouse marks two different types of MSC, LepR+MSC and PαS. We also found that tFP635-PDGFRa+Sca1+ stromal cells (tFP635-PDSP) are a putative novel MSC fraction.

Academic Significance and Societal Importance of the Research Achievements

本研究では、血液産生を助ける働きのある造血支持細胞が、どのようにして成体内で維持されるかを明らかにすることを目的とした。このため、独自にレポーターマウスを作成・解析を行い、作成したレポーターマウスが既知の造血支持細胞をマーキングすることを見出した。さらに、骨髄中に造血支持細胞を産生する能力を持つと予想される新規の細胞を同定した。この結果は、血液産生の制御機構や白血病などの血液のガンの発症機構の解明につながる知見である。

Report

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

    (6 results)

All 2022 2020 2019

All Journal Article (5 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (1 results)

  • [Journal Article] Generation of a BAC transgenic mouse strain that expresses CreERT and a fluorescent protein under the transcriptional control of the Fzd5 locus2022

    • Author(s)
      Miyagi Satoru、Kato Yuko、Watanabe Ayako、Miyamoto Kenichi、Yoshikawa Rintaro、Hagiya Keita、Hirano Daisuke、Matsuzaki Yumi
    • Journal Title

      Inflammation and Regeneration

      Volume: 42 Issue: 1

    • DOI

      10.1186/s41232-022-00194-x

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Plant homeodomain finger protein 6 in the regulation of normal and malignant hematopoiesis.2020

    • Author(s)
      Miyagi S, Iwama A.
    • Journal Title

      Curr Opin Hematol.

      Volume: - Issue: 4 Pages: 248-253

    • DOI

      10.1097/moh.0000000000000588

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] The chromatin binding protein Phf6 restricts the self-renewal of hematopoietic stem cells.2019

    • Author(s)
      Miyagi S, Sroczynska P, Kato Y, Nakajima-Takagi Y, Oshima M, Rizq O, Takayama N, Saraya A, Mizuno S, Sugiyama F, Takahashi S, Matsuzaki Y, Christensen J, Helin K, and Iwama A.
    • Journal Title

      Blood

      Volume: - Issue: 23 Pages: 2495-2506

    • DOI

      10.1182/blood.2019000468

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Genome-Wide Mapping of Bivalent Histone Modifications in Hepatic Stem/Progenitor Cells2019

    • Author(s)
      Kanayama K, Chiba T, Oshima Kanzaki H, Koide S, Saraya A, Miyagi S, Mimura N, Kusakabe Y, Saito T, Ogasawara S, Suzuki E, Ooka Yoshihiko, Maruyama H, Iwama A, Kato N.
    • Journal Title

      Stem Cells Int

      Volume: 2019 Pages: 9789240-9789240

    • DOI

      10.1155/2019/9789240

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Bmi1 restricts the adipogenic differentiation of bone marrow stromal cells to maintain the integrity of the hematopoietic stem cell niche2019

    • Author(s)
      Kato Yuko、Hou Li-Bo、Miyagi Satoru、Nitta Eriko、Aoyama Kazumasa、Shinoda Daisuke、Yamazaki Satoshi、Kuribayashi Wakako、Isshiki Yusuke、Koide Shuhei、Si Sha、Saraya Atsunori、Matsuzaki Yumi、van Lohuizen Maarten、Iwama Atsushi
    • Journal Title

      Experimental Hematology

      Volume: 76 Pages: 24-37

    • DOI

      10.1016/j.exphem.2019.07.006

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 造血幹細胞制御因子Phf6の結合因子の同定とその機能解析2020

    • Author(s)
      宮城聡、加藤裕子、岩間厚志、松崎有未
    • Organizer
      炎症再生医学会
    • Related Report
      2020 Research-status Report

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

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