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Functional significance of Cebpb in metabolic rewiring during transformation and its application to the novel therapeutic approaches

Research Project

Project/Area Number 21K08379
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 InstitutionTokyo University of Pharmacy and Life Science

Principal Investigator

Yokota Asumi  東京薬科大学, 生命科学部, 助教 (00571556)

Co-Investigator(Kenkyū-buntansha) 平位 秀世  東京薬科大学, 生命科学部, 教授 (50315933)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords転写因子 / C/EBPβ / 細胞分化 / 細胞増殖 / 造血器腫瘍 / 代謝 / 腫瘍 / 白血病 / 造血幹細胞
Outline of Research at the Start

本研究では、白血病などの造血器悪性腫瘍において、細胞増殖亢進などの形質転換における代謝リプログラミングに焦点を当てる。
脂肪細胞において代謝および細胞分化を制御する重要な転写因子C/EBPβは、一部の白血病や固形癌などにおいて発現上昇がみられ、細胞増殖亢進に重要であることが示唆されている。一方で、正常造血や造血器腫瘍における代謝制御にC/EBPβがどのような役割を担うかはほとんど解明されていない。本研究では、造血器腫瘍マウスモデルを用いて、形質転換時における細胞内代謝の変化をC/EBPβがどのように制御しているか、またC/EBPβが制御する経路が治療標的となり得るか、について検討を行う。

Outline of Final Research Achievements

The transcription factor C/EBPβ is induced in hematopoietic stem and progenitor cells in response to stimuli such as inflammation and promotes the proliferation of hematopoietic stem and progenitor cells and their differentiation into myeloid cells. In this study, we found that the expression of C/EBPβ was elevated in the hematopoietic stem and progenitor cells of the Flt3-ITD knock-in mouse hematopoietic tumor model, and that the deficiency of the Cebpb gene markedly suppressed the pathology of leukemia. Additionally, while Flt3-ITD enhanced the self-renewal and proliferation abilities of hematopoietic stem and progenitor cells, these abilities were significantly abrogated by the deficiency of Cebpb. Mechanistically, it was suggested that the activation of lipid metabolism-related genes by Flt3-ITD could be the target of C/EBPβ in the formation of leukemia pathology.

Academic Significance and Societal Importance of the Research Achievements

本研究では、急性骨髄性白血病において認められ、腫瘍形成に寄与するFLT3-ITD変異によって、転写因子C/EBPβの発現亢進が誘導されること、また炎症経路や脂質代謝経路の活性化を介して、C/EBPβが腫瘍幹細胞の自己複製や増殖を制御しており、病態形成・進展に重要であることを示した。FLT3-ITD陽性白血病に対しては、FLT3阻害剤が初発例から用いられるようになり、予後を改善したが、薬剤耐性や治療抵抗性の問題もあり、治療成績改善は喫緊の課題である。本研究によって、C/EBPβまたC/EBPβが制御する下流経路の重要性を示したことは、新規治療アプローチの開発に繋がる重要な知見となると考える。

Report

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

    (12 results)

All 2024 2023 2022 2021 Other

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (4 results) Remarks (4 results)

  • [Journal Article] Hematopoietic stem cells undergo a lymphoid to myeloid switch in early stages of emergency granulopoiesis2023

    • Author(s)
      Vanickova Karolina、Milosevic Mirko、Ribeiro Bas Irina、Burocziova Monika、Yokota Asumi、Danek Petr、Grusanovic Srdjan、Chili?ski Mateusz、Plewczynski Dariusz、Rohlena Jakub、Hirai Hideyo、Rohlenova Katerina、Alberich‐Jorda Meritxell
    • Journal Title

      The EMBO Journal

      Volume: 42 Issue: 23

    • DOI

      10.15252/embj.2023113527

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The early neutrophil-committed progenitors aberrantly differentiate into immunoregulatory monocytes during emergency myelopoiesis2023

    • Author(s)
      Ikeda N, Kubota H, Suzuki R, Morita M, Yoshimura A, Osada Y, Kishida K, Kitamura D, Iwata A, Yotsumoto S, Kurotaki D, Nishimura K, Nishiyama A, Tamura T, Kamatani T, Tsunoda T, Murakawa M, Asahina Y, Hayashi Y, Harada H, Harada Y, Yokota A, Hirai H, Seki T, Kuwahara M, Yamashita M, Shichino S, Tanaka M, Asano K.
    • Journal Title

      Cell Reports

      Volume: 42 Issue: 3 Pages: 112165-112165

    • DOI

      10.1016/j.celrep.2023.112165

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Novel CD135+ Subset of Mouse Monocytes with a Distinct Differentiation Pathway and Antigen-Presenting Properties2022

    • Author(s)
      Kamio Naoka、Yokota Asumi、Tokuda Yuichi、Ogasawara Chie、Nakano Masakazu、Nagao Miki、Tashiro Kei、Maekawa Taira、Onai Nobuyuki、Hirai Hideyo
    • Journal Title

      The Journal of Immunology

      Volume: 209 Issue: 3 Pages: 498-509

    • DOI

      10.4049/jimmunol.2100024

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Tumor microenvironment-derived R-Spondins enhance anti-tumor immunity to suppress tumor growth and sensitize for immune checkpoint blockade therapy.2021

    • Author(s)
      1.Tang Y, Xu Q, Hu L, Yan X, Feng X, Yokota A, Wang W, Zhang D, Krishnamurthy D, Ochayon DE, Wen L, Huo L, Zeng H, Luo Y, Huang F, Wunderlich M, Zhang J, Vivier E, Zhou J, Waggoner SN, Huang G.
    • Journal Title

      Cancer Discovery

      Volume: 11 Issue: 12 Pages: 3142-3157

    • DOI

      10.1158/2159-8290.cd-20-0833

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 単球造血およびFLT3-ITD白血病モデルにおけるC/EBPβの機能2024

    • Author(s)
      横田明日美、空谷優希、赤石佳音、佐藤水萌、平位秀世
    • Organizer
      第28回造血器腫瘍研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] C/EBPβ is involved in the regulation of CD135+ novel monocyte subset in mice.2023

    • Author(s)
      Yokota A, Sakabe Y, Akaishi K, Inose M, Kamio N, Okuda H, Nishiyama A, Tamura T, Hirai H
    • Organizer
      第85回日本血液学会学術総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ミエロイドへの分化過程における遠位エンハンサーによるC/EBPβ発現制御機構の解明2023

    • Author(s)
      神藤響生, 横田明日美, 平位秀世
    • Organizer
      第85回日本血液学会学術総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] A novel monocyte subset with a distinct differentiation path and antigen-presenting properties.2022

    • Author(s)
      Yokota A, Kamio N, Tokuda Y, Ogasawara C, Nakano M, Tashiro K, Onai N, Hirai H
    • Organizer
      The 84th Annual Meeting of the Japanese Society of Hematology
    • Related Report
      2022 Research-status Report
  • [Remarks] 東京薬科大学生命科学部HP

    • URL

      https://www.toyaku.ac.jp/lifescience/

    • Related Report
      2023 Annual Research Report
  • [Remarks] 東京薬科大学生命科学部幹細胞制御学HP

    • URL

      https://www.ls.toyaku.ac.jp/~stemcell/

    • Related Report
      2023 Annual Research Report
  • [Remarks] 東京薬科大学 生命科学部 生命医科学科HP

    • URL

      https://www.toyaku.ac.jp/lifescience/departments/biomed/research.html#anc-04

    • Related Report
      2022 Research-status Report 2021 Research-status Report
  • [Remarks] 東京薬科大学 生命科学部 幹細胞制御学HP

    • URL

      https://www.ls.toyaku.ac.jp/~stemcell/

    • Related Report
      2022 Research-status Report 2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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