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Development of combinatorial CAR-T cell therapy improving immunosupressive tumor microenvironment

Research Project

Project/Area Number 20K07641
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 50020:Tumor diagnostics and therapeutics-related
Research InstitutionKyoto Prefectural University of Medicine

Principal Investigator

Yagyu Shigeki  京都府立医科大学, 医学(系)研究科(研究院), 助教 (10572547)

Co-Investigator(Kenkyū-buntansha) 吉田 秀樹  京都府立医科大学, 医学(系)研究科(研究院), 助教 (10643546)
菊地 顕  京都府立医科大学, 医学(系)研究科(研究院), 特任講師 (40453104)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
KeywordsCAR-T細胞 / 固形腫瘍 / 免疫疲弊 / 神経芽腫 / 腫瘍微小環境 / 遺伝子改変T細胞 / オフターゲット
Outline of Research at the Start

本研究では以下の2点を明らかにし、固形腫瘍に対するCAR-T細胞療法の臨床応用への橋渡しを行う。
1 腫瘍微小環境による免疫逃避機構出現を回避させる事が可能な分子標的薬と、CAR-T細胞による複合的な遺伝子改変細胞療法の開発
2 Off target効果による予期せぬ有害事象出現時に、CAR-T細胞による細胞傷害を完全に停止させるためのセーフガードシステムの開発

Outline of Final Research Achievements

To enhance the efficacy of CAR-T cell therapy for solid tumors, it is important to suppress immunosuppressive mechanisms by the tumor microenvironment. In this study, we investigated the potential of molecularly targeted drugs and combination therapies to prevent CAR-T cells from being exhausted by the immunosuppressive tumor microenvironment and to improve the efficacy of CAR-T cell therapy. A synergistic antitumor effect was observed in the trametinib plus GD2-CAR-T cell combination therapy group compared to the GD2-CAR-T cell monotherapy group in neuroblastoma-bearing murine xenograft model, regardless of the mutation status of Raf/MEK pathway. These results suggest that trametinib suppresses excessive activation and exhaustion of CAR-T cells and synergistically enhances antitumor effects of GD2-CAR-T cells. Based on these findings, the efficacy of alectinib, an ALK inhibitor, in combination with GD2-CAR-T cells in ALK-mutant neuroblastoma is also being investigated.

Academic Significance and Societal Importance of the Research Achievements

固形腫瘍に対するCAR-T細胞療法の応用が期待されているが、CAR-T細胞療法の効果を向上させるためには、さらなる遺伝子改変や併用療法の開発が望まれている。本研究は、すでに他疾患で承認されているRaf/MEK阻害剤が、CAR-T細胞の過剰活性化と疲弊を抑制することで相乗的な効果を発揮することを明らかにした。今後、神経芽腫に対してGD2-CAR-T細胞療法が臨床応用されていく中で、分子標的薬との併用療法が有望であることが証明された点で学術的、社会的意義が高いと考えられる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (31 results)

All 2023 2022 2021 2020

All Journal Article (11 results) (of which Peer Reviewed: 10 results,  Open Access: 10 results) Presentation (18 results) (of which Int'l Joint Research: 7 results,  Invited: 16 results) Book (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] piggyBac-transposon-mediated CAR-T cells for the treatment of hematological and solid malignancies2023

    • Author(s)
      Yagyu Shigeki、Nakazawa Yozo
    • Journal Title

      International Journal of Clinical Oncology

      Volume: - Issue: 6 Pages: 736-747

    • DOI

      10.1007/s10147-023-02319-9

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Targeting FLT3-specific chimeric antigen receptor T cells for acute lymphoblastic leukemia with KMT2A rearrangement2022

    • Author(s)
      Suematsu Masaya、Yagyu Shigeki、Yoshida Hideki、Osone Shinya、Nakazawa Yozo、Sugita Kanji、Imamura Toshihiko、Iehara Tomoko
    • Journal Title

      Cancer Immunology, Immunotherapy

      Volume: 72 Issue: 4 Pages: 957-968

    • DOI

      10.1007/s00262-022-03303-4

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] PiggyBac Transposon-Mediated CD19 Chimeric Antigen Receptor-T Cells Derived From CD45RA-Positive Peripheral Blood Mononuclear Cells Possess Potent and Sustained Antileukemic Function2022

    • Author(s)
      Suematsu Masaya、Yagyu Shigeki、Nagao Nobuyoshi、Kubota Susumu、Shimizu Yuto、Tanaka Miyuki、Nakazawa Yozo、Imamura Toshihiko
    • Journal Title

      Frontiers in Immunology

      Volume: 13 Pages: 1-13

    • DOI

      10.3389/fimmu.2022.770132

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Non-viral inducible caspase 9 mRNA delivery using lipid nanoparticles against breast cancer: An in-vitro study2022

    • Author(s)
      Nakashima Ikumi、Saito Shoji、Akahoshi Eiichi、Yagyu Shigeki、Sugano-Ishihara Mitsuko、Nakazawa Yozo
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 635 Pages: 144-153

    • DOI

      10.1016/j.bbrc.2022.09.105

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 【小児医療の最先端】臨床編 小児がんに対するCAR-T細胞療法2022

    • Author(s)
      柳生茂希、中沢洋三
    • Journal Title

      医学のあゆみ

      Volume: 282 Pages: 429-434

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Inhibition of MEK pathway enhances the antitumor efficacy of chimeric antigen receptor T cells against neuroblastoma2021

    • Author(s)
      Tomida Akimasa、Yagyu Shigeki、Nakamura Kayoko、Kubo Hiroshi、Yamashima Kumiko、Nakazawa Yozo、Hosoi Hajime、Iehara Tomoko
    • Journal Title

      Cancer Science

      Volume: 112 Issue: 10 Pages: 4026-4036

    • DOI

      10.1111/cas.15074

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Autologous antigen-presenting cells efficiently expand piggyBac transposon chimeric antigen receptor T cells with predominant memory phenotype.2021

    • Author(s)
      Nakamura K, Yagyu S, Hirota S, Tomida A, Kondo M, Shigeura T, Hasegawa A, Tanaka M, Nakazawa Y.
    • Journal Title

      Molecular Therapy - Methods and Clinical Development

      Volume: 21 Pages: 315-324

    • DOI

      10.1016/j.omtm.2021.03.011

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of non-viral, ligand-dependent, EPHB4-specific chimeric antigen receptor T cells for treatment of rhabdomyosarcoma.2021

    • Author(s)
      Kubo H, Yagyu S, Nakamura K, Yamashima K, Tomida A, Kikuchi K, Iehara T, Nakazawa Y, Hosoi H.
    • Journal Title

      Molecular Therapy - Oncolytics

      Volume: 20 Pages: 646-658

    • DOI

      10.1016/j.omto.2021.03.001

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mutated GM-CSF-based CAR-T cells targeting CD116/CD131 complexes exhibit enhanced anti-tumor effects against acute myeloid leukaemia2021

    • Author(s)
      Hasegawa Aiko、Saito Shoji、Narimatsu Shogo、Nakano Shigeru、Nagai Mika、Ohnota Hideki、Inada Yoichi、Morokawa Hirokazu、Nakashima Ikumi、Morita Daisuke、Ide Yuichiro、Matsuda Kazuyuki、Tashiro Haruko、Yagyu Shigeki、Tanaka Miyuki、Nakazawa Yozo
    • Journal Title

      Clinical Translational Immunology

      Volume: 10 Issue: 5 Pages: 1282-1282

    • DOI

      10.1002/cti2.1282

    • URL

      https://localhost/en/publications/d62b93f1-a412-47d8-969f-7a2c74eadcd4

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A lymphodepleted non‐human primate model for the assessment of acute on‐target and off‐tumor toxicity of human chimeric antigen receptor‐T cells2021

    • Author(s)
      Yagyu Shigeki、Mochizuki Hidemi、Yamashima Kumiko、Kubo Hiroshi、Saito Shoji、Tanaka Miyuki、Sakamoto Kengo、Shimoi Akihito、Nakazawa Yozo
    • Journal Title

      Clinical Translational Immunology

      Volume: 10 Issue: 6 Pages: 1291-1291

    • DOI

      10.1002/cti2.1291

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Autologous non-human primate model for safety assessment of piggyBac transposon-mediated chimeric antigen receptor T cells on granulocyte-macrophage colony-stimulating factor receptor.2020

    • Author(s)
      Morokawa H, Yagyu S, Hasegawa A, Tanaka M, Saito S, Mochizuki H, Sakamoto K, Shimoi A, Nakazawa Y.
    • Journal Title

      Clinical & Translational Immunology

      Volume: 22 Issue: 11

    • DOI

      10.1002/cti2.1207

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Memory-rich CAR-T cell engineering by piggyBac transposon system for solid malignancies2022

    • Author(s)
      Yagyu S
    • Organizer
      第81回日本癌学会 シンポジウム21 ウイルス療法・免疫細胞治療の現在と未来
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 非ウイルス遺伝子改変CAR-T細胞 - アカデミアでの基礎開発から臨床実装に向けた取り組み2022

    • Author(s)
      Yagyu S
    • Organizer
      LINK-J 「ライフサイエンス都市 柏の葉」で躍進するイノベーションシリーズvol.2
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 固形腫瘍に対する非ウイルス遺伝子改変CAR-T細胞療法の開発2022

    • Author(s)
      Yagyu S
    • Organizer
      第28回日本遺伝子細胞治療学会 Young Investigators session; explore a new era of gene therapy research
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 非ウイルス遺伝子改変法による遺伝子改変キメラ抗原受容体T細胞療法の開発2022

    • Author(s)
      Yagyu S
    • Organizer
      日本核酸医薬学会第7回例会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 非ウイルス遺伝子改変法による遺伝子改変キメラ抗原受容体T細胞療法の開発と臨床応用2022

    • Author(s)
      Yagyu S
    • Organizer
      第14回日本血液疾患免疫療法学会 シンポジウム:がん免疫療法の新戦略
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 非ヒト霊長類モデルによる遺伝子改変キメラ抗原受容体T細胞のオンターゲット毒性評価法の開発2022

    • Author(s)
      Yagyu S
    • Organizer
      第49回日本毒性学会学術集会 シンポジウム16 遺伝子・細胞治療薬開発とその安全性評価
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Memory-rich CAR-T cell engineering by piggyBac transposon system for solid malignancies2022

    • Author(s)
      Yagyu S
    • Organizer
      第44回日本造血細胞・細胞療法学会 シンポジウム New Horizons in the Cell and Gene Therapy
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Memory-rich CAR-T cell engineering by piggyBac transposon system for solid malignancies.2022

    • Author(s)
      Yagyu S
    • Organizer
      25th ASGCT 25TH ANNUAL MEETING “Cutting Edge Gene and Cell Therapy Research in Japan
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] piggyBac transposon-mediated CAR-T cells for solid tumors - A promising approach for clinical application2022

    • Author(s)
      Yagyu S
    • Organizer
      International Conference on Lymphocyte Engineering
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Memory-rich CAR-T cell engineering by piggyBac transposon system for solid malignancies.2022

    • Author(s)
      柳生茂希
    • Organizer
      第44回日本造血細胞・細胞療法学会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Memory-rich CAR-T cell engineering by piggyBac transposon system for solid malignancies.2022

    • Author(s)
      Yagyu S
    • Organizer
      25th ASGCT 25TH ANNUAL MEETING
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] piggyBac transposon-mediated CAR-T cells for solid tumors - A promising approach for clinical application.2022

    • Author(s)
      Yagyu S
    • Organizer
      International Conference on Lymphocyte Engineering
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Lymphodepleted non-human primate model for the assessment of acute on-target/off-tumor toxicity of human CAR-T cells.2021

    • Author(s)
      Yagyu S
    • Organizer
      49th Annual Scientific Meeting of the Australian and New Zealand Society for Immunology, ASI 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Non-viral gene transfer based chimeric antigen receptor T cells for solid tumors.2021

    • Author(s)
      柳生茂希
    • Organizer
      第27回日本遺伝子細胞治療学会学術集会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] piggyBac transposon-mediated CAR-T cells for solid tumors - A promising approach for clinical application.2021

    • Author(s)
      Yagyu S
    • Organizer
      The 12th JSH International Symposium 2021 in Kamakura
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] piggyBac transposon-mediated CAR-T cells - A promising and realistic approach for clinical application.2020

    • Author(s)
      Yagyu S
    • Organizer
      International Society of Cell Therapy 2020 Virtual.
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] piggyBac transposon mediated CAR-T cells for solid tumor - A promising and realistic approach for clinical application.2020

    • Author(s)
      Yagyu S
    • Organizer
      第79回日本癌学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] Recent advances of CAR-T cell therapy for pediatric solid tumors.2020

    • Author(s)
      Yagyu S
    • Organizer
      第62回日本小児血液・がん学会学術集会
    • Related Report
      2020 Research-status Report
  • [Book] いま、本格化する 遺伝子治療2020

    • Author(s)
      小澤 敬也
    • Total Pages
      240
    • Publisher
      羊土社
    • ISBN
      9784758103848
    • Related Report
      2020 Research-status Report
  • [Patent(Industrial Property Rights)] CAR発現免疫細胞を含む細胞集団の製造方法2020

    • Inventor(s)
      柳生茂希ほか
    • Industrial Property Rights Holder
      柳生茂希ほか
    • Industrial Property Rights Type
      特許
    • Filing Date
      2020
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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