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Epigenetics of Hemangiosarcoma - The Role of KDM2B and Generation of Hemangiosarcoma Mouse Model -

Research Project

Project/Area Number 20K15654
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 42020:Veterinary medical science-related
Research InstitutionHokkaido University

Principal Investigator

Aoshima Keisuke  北海道大学, 獣医学研究院, 助教 (90745069)

Project Period (FY) 2020-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords血管肉腫 / エピジェネティクス / ヒストン脱メチル化 / イヌ / マウス / KDM2B / ヒストンメチル化 / ヒストンユビキチン化 / マウスモデル / 治療
Outline of Research at the Start

血管肉腫はイヌに好発する血管内皮細胞由来の悪性腫瘍である。申請者はこれまでに,ヒストン脱メチル化酵素KDM2Bが血管肉腫細胞の増殖・生存に必須であることを明らかにした。本研究では(1)KDM2Bが制御するメカニズムの詳細を明らかにすること,(2)KDM2Bの過剰発現によりマウス血管内皮細胞をがん化させ,マウス血管肉腫モデルを作製することを目的とする。本研究により,血管肉腫におけるエピジェネティクスの役割を初めて明らかにすることができる。また,免疫能を有したマウス血管肉腫モデルは完全な微小環境での血管肉腫の病態メカニズムを解析することを可能とし,新規治療法開発への基盤となる。

Outline of Final Research Achievements

We found that KDM2B, a histone demethylase, activated DNA repair system, which allowed tumor cells to avoid apoptosis. We also revealed that this was achieved through histone ubiquitination. Furthermore, KDM2B knockdown and histone demethylase inhibitor GSK-J4 treatment after tumor formation in canine hemangiosarcoma cell line xenograft mouse models decreased and slowed tumor growth, respectively. We also revealed that murine angiosarcoma cell line ISOS-1 derived tumor in BALB/c mice showed similar characteristics to clinical canine hemangiosarcoma cases. ISOS-1 also highly expressed KDM2B that worked in the same mechanism as in canine hemangiosarcoma cell lines.

Academic Significance and Societal Importance of the Research Achievements

本研究により KDM2B が血管肉腫の治療標的となり得ることを示し,ヒストン脱メチル化阻害剤である GSK-J4 がマウスモデルにおいて副作用なく移植細胞由来の血管肉腫の増殖を抑制できることを明らかにした。しかしながら KDM2B特異的な阻害剤が存在しないこと,そして GSK-J4 は腫瘍を退縮させらなかったことから,臨床応用へはさらなる検討が必要である。本研究ではこのほかにマウス血管肉腫細胞 ISOS-1 がイヌ血管肉腫のモデルとなり得る可能性を示し,正常免疫能を有するマウスモデルにおける血管肉腫研究が可能であることを明らかにした。

Report

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

    (7 results)

All 2022 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (2 results) (of which Int'l Joint Research: 1 results) Remarks (1 results)

  • [Int'l Joint Research] Yale School of Medicine(米国)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Hemangiosarcoma cells induce M2 polarization and PD-L1 expression in macrophages2022

    • Author(s)
      Gulay Kevin Christian M.、Aoshima Keisuke、Maekawa Naoya、Suzuki Tamami、Konnai Satoru、Kobayashi Atsushi、Kimura Takashi
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 2124-2124

    • DOI

      10.1038/s41598-022-06203-w

    • NAID

      120007191780

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] KDM2B promotes cell viability by enhancing DNA damage response in canine hemangiosarcoma2021

    • Author(s)
      Gulay Kevin Christian Montecillo、Aoshima Keisuke、Shibata Yuki、Yasui Hironobu、Yan Qin、Kobayashi Atsushi、Kimura Takashi
    • Journal Title

      Journal of Genetics and Genomics

      Volume: 48 Issue: 7 Pages: 618-630

    • DOI

      10.1016/j.jgg.2021.02.005

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The expression of histone lysine demethylase 2B in canine hemangiosarcoma is associated with disease progression2021

    • Author(s)
      Gulay Kevin Christian M.、Aoshima Keisuke、Kim Sangho、Kitaguchi Ryusei、Kobayashi Atsushi、Kimura Takashi
    • Journal Title

      Veterinary and Comparative Oncology

      Volume: - Issue: 2 Pages: 529-534

    • DOI

      10.1111/vco.12796

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] Histone lysine demethylase 2B regulates endothelial cell carcinogenesis by enhancing gene stability2020

    • Author(s)
      GULAY Kevin Christian Montecillo, Aoshima Keisuke, Kobayashi Atsushi, Kimura Takashi
    • Organizer
      8th Sapporo Summer Seminar of One Health
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] KDM2B promotes endothelial cell carcinogenesis by enhancing DNA damage repair through the ATM and c-FOS pathways2020

    • Author(s)
      Montecillo Gulay Kevin Christian、Aoshima Keisuke、Shibata Yuki、Yasui Hironobu、Yan Qin、Kobayashi Atsushi、Kimura Takashi
    • Organizer
      第6回北海道大学部局横断シンポジウム
    • Related Report
      2020 Research-status Report
  • [Remarks] 北海道大学プレスリリース 3月15日

    • URL

      https://www.hokudai.ac.jp/news/2021/03/post-806.html

    • Related Report
      2021 Annual Research Report

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Published: 2020-04-28   Modified: 2023-01-30  

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