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Elucidation of molecular mechanisms involved in the regulation of tumor immunity in osteosarcoma

Research Project

Project/Area Number 21K07134
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 50010:Tumor biology-related
Research InstitutionHoshi University

Principal Investigator

Shimizu Takatsune  星薬科大学, 薬学部, 准教授 (40407101)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords骨肉腫 / 腫瘍免疫 / がん微小環境 / 転移巣 / 血管新生
Outline of Research at the Start

骨肉腫は未だ予後不良であり、治療標的分子は解明されておらず、既存の免疫療法も大きな奏功を示さない。このため、難治例に対する新規治療法開発が求められる。本研究は、独自のマウスモデルと評価系を用いて、骨肉腫の腫瘍免疫誘導制御に関わる分子機構の解明を目的とする。これまで骨肉腫細胞にsgRNA libraryを導入したのち、B6野生型とSCIDマウスに移植し、腫瘍内残存sgRNAをNGS解析により比較した。発現差のある候補遺伝子の中から腫瘍形成能に関わるヒット分子を同定したのち、分子機構を解明し、骨肉腫に対する新規免疫療法の開発を目指す。

Outline of Final Research Achievements

Immunotherapy is not effective for osteosarcoma (OS), and elucidation of its molecular mechanisms is necessary to overcome refractory cases. Using our unique OS model and dropout screening, candidate molecules that are important for OS cells to evade the immune attack have been extracted. OS cells with modified expression of the candidate molecules were inoculated into C57BL/6 wild type and SCID mice to identify the molecules that were specifically involved in the decreased tumorigenicity in wild-type mice. The results indicated that p53-related molecules and an actin-binding protein might inhibit tumor immunity. Moreover, knockout of mutant p53 in OS cells decreased the primary lesion. However, primary and metastatic lesions still developed even with the reduced expression level of these molecules. Therefore, it is necessary to further narrow down of the promising candidate molecules and elucidate the molecular mechanisms related to the exhaustion of the tumor immunity.

Academic Significance and Societal Importance of the Research Achievements

骨肉腫は免疫療法が奏効せず、その分子機構解明は、難治症例に対する有効な治療法開発に繋がる。本研究を通じて、腫瘍免疫回避に関わる骨肉腫側の分子(p53関連分子とアクチン結合タンパク)が明らかとなった。これらの分子は高発現により、腫瘍内のT細胞の減少と疲弊をもたらす可能性がある。さらなる検証を要するが、これらの結果は骨肉腫への効果的な腫瘍免疫療法確立に貢献すると考えられる。また、研究から派生し、変異型p53の骨肉腫病態における役割と転写制御に関する分子機構が解明された。さらに、nintedanibが新たな治療手段として使用できる可能性が示され、骨肉腫の新規治療法開発に貢献する可能性がある。

Report

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

    (19 results)

All 2024 2023 2022 2021 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results) Book (1 results) Remarks (4 results)

  • [Journal Article] Single?agent nintedanib suppresses metastatic osteosarcoma growth by inhibiting tumor vascular formation2024

    • Author(s)
      Shimizu Takatsune、Sagara Atsunobu、Fukuchi Yumi、Muto Akihiro
    • Journal Title

      Oncology Letters

      Volume: 27 Issue: 3 Pages: 1-11

    • DOI

      10.3892/ol.2024.14254

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Keratinocyte-Derived Cytokine in the Hippocampus Disrupts Extinction of Conditioned Fear Memory in Tumor-Bearing Mice2024

    • Author(s)
      Ikeda Hiroko、Yamagishi Aimi、Yonemochi Naomi、Yamamoto Shogo、Shimizu Takatsune、Muto Akihiro、Waddington John L.、Kamei Junzo
    • Journal Title

      Molecular Neurobiology

      Volume: in press Issue: 9 Pages: 6454-6468

    • DOI

      10.1007/s12035-024-03992-1

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cancer aggravation due to persistent pain signals with the increased expression of pain-related mediators in sensory neurons of tumor-bearing mice2023

    • Author(s)
      Tanaka Kenichi、Kondo Takashige、Narita Michiko、Muta Takeru、Yoshida Sara、Sato Daisuke、Suda Yukari、Hamada Yusuke、Shimizu Takatsune、Kuzumaki Naoko、Narita Minoru
    • Journal Title

      Molecular Brain

      Volume: 16 Issue: 1 Pages: 1-11

    • DOI

      10.1186/s13041-023-01001-5

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Potential risk of driving performance under combined conditions of taking second-generation antihistamines and attending calls using a hands-free function2023

    • Author(s)
      Sagara Atsunobu、Nagahama Akihito、Aki Hayato、Yoshimura Hiroki、Hiraide Makoto、Shimizu Takatsune、Sano Motohiko、Yumoto Tetsuro、Hosoe Tomoo、Tanaka Kenji
    • Journal Title

      Traffic Injury Prevention

      Volume: 25 Issue: 1 Pages: 36-40

    • DOI

      10.1080/15389588.2023.2265002

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Depletion of R270C Mutant p53 in Osteosarcoma Attenuates Cell Growth but Does Not Prevent Invasion and Metastasis In Vivo2022

    • Author(s)
      Shimizu Takatsune、Sugihara Eiji、Takeshima Hideyuki、Nobusue Hiroyuki、Yamaguchi Rui、Yamaguchi-Iwai Sayaka、Fukuchi Yumi、Ushijima Toshikazu、Muto Akihiro、Saya Hideyuki
    • Journal Title

      Cells

      Volume: 11 Issue: 22 Pages: 3614-3614

    • DOI

      10.3390/cells11223614

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 線維化抑制薬ニンテダニブは骨肉腫の生体内進展を抑制する2024

    • Author(s)
      清水孝恒、市川紗衣、市川穂菜美、福地由美、武藤章弘
    • Organizer
      日本薬学会第144年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 転写調節因子MKL1は間質細胞からがん関連線維芽細胞への転換を制御する2023

    • Author(s)
      上瀧萌、國富晴子、清水孝恒、サンペトラオルテア、植野さやか、佐谷秀行、信末博行
    • Organizer
      第82回日本癌学会学術総会
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ROCK阻害薬ファスジルは治療抵抗性骨肉腫細胞において化学療法による抗腫瘍効果を高める2023

    • Author(s)
      信末博行、清水孝恒、上瀧萌、住吉清香、近藤由佳、山田勢至、塚本徹哉、佐谷秀行
    • Organizer
      第82回日本癌学会学術総会
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ニンテダニブは骨肉腫の原発巣と転移巣の形成を抑制する2023

    • Author(s)
      清水孝恒、市川紗衣、市川穂菜美、唐鎌理子、高橋佑果、滝澤史織、飛田朱里、武藤章弘
    • Organizer
      第82回日本癌学会学術総会
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] R270C型のp53変異体は転写活性を失うも、骨肉腫の生体内進展には寄与しない2022

    • Author(s)
      清水孝恒、杉原英志、信末博行、山口さやか、武藤章弘、佐谷秀行
    • Organizer
      第81回日本癌学会学術総会
    • Related Report
      2022 Research-status Report
  • [Presentation] 骨肉腫悪性化の分子基盤探索と薬物治療開発2022

    • Author(s)
      清水孝恒
    • Organizer
      2021年度 先端モデル動物支援プラットフォーム成果発表会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 骨肉腫に対するMEK阻害療法の検証2021

    • Author(s)
      清水孝恒、木村聖美、武藤章弘、佐谷秀行
    • Organizer
      第53回 日本臨床分子形態学会総会・学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] Investigation of therapeutic potential of MEK inhibition in osteosarcoma2021

    • Author(s)
      木村聖美, 杉原英志, 山口さやか, 信末博行, サンペトラオルテア, 大槻雄二, 武藤章弘, 佐谷秀行, 清水孝恒
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 骨肉腫腫瘍免疫の解析、新規免疫療法開発のための解析モデル基盤形成2021

    • Author(s)
      清水孝恒、木村聖美、杉原英志、信末博行、武藤章弘、佐谷秀行
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Research-status Report
  • [Book] 統合分子薬理学vol.2 がんと緩和の分子レベル治療2022

    • Author(s)
      成田年、加藤良規、清水孝恒、鳥越一宏
    • Total Pages
      327
    • Publisher
      京都廣川書店
    • Related Report
      2022 Research-status Report
  • [Remarks] Researchmap 清水孝恒

    • URL

      https://researchmap.jp/shimizutakatsune

    • Related Report
      2023 Annual Research Report
  • [Remarks] 星薬の研究 清水孝恒

    • URL

      https://www.hoshi.ac.jp/laboratory/byoutai/

    • Related Report
      2023 Annual Research Report
  • [Remarks] ADAMS(先端モデル動物支援プラットフォーム)治療抵抗性骨肉腫への新規分化転換治療法の開発

    • URL

      https://plaza.umin.ac.jp/model/thesis/profiling/shimizu.html

    • Related Report
      2023 Annual Research Report
  • [Remarks] researchmap 清水孝恒

    • URL

      https://researchmap.jp/shimizutakatsune

    • Related Report
      2022 Research-status Report

URL: 

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

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