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Identification of novel oncogenic mutations of a molecule which are specifically occurred in and regulate oncogenicity of intracranial non-germinomatous germ cell tumors

Research Project

Project/Area Number 17K10882
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Neurosurgery
Research InstitutionNational Defense Medical College

Principal Investigator

Tomiyama Arata  防衛医科大学校(医学教育部医学科進学課程及び専門課程、動物実験施設、共同利用研究施設、病院並びに防衛, 病院 脳神経外科, 講師 (40385810)

Co-Investigator(Kenkyū-buntansha) 大谷 直樹  防衛医科大学校(医学教育部医学科進学課程及び専門課程、動物実験施設、共同利用研究施設、病院並びに防衛, 病院 脳神経外科, 講師 (20573637)
山本 祐太朗  防衛医科大学校(医学教育部医学科進学課程及び専門課程、動物実験施設、共同利用研究施設、病院並びに防衛, 病院 脳神経外科, 助教 (20785761)
森 健太郎  防衛医科大学校(医学教育部医学科進学課程及び専門課程、動物実験施設、共同利用研究施設、病院並びに防衛, 脳神経外科学, 教授 (30200364)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords頭蓋内胚細胞腫瘍 / 非ジャーミノーマ胚細胞腫瘍 / USP28 / ユビキチン化 / MEK1/2 / 非ジャーミノーマ性胚細胞腫瘍 / ドライバー変異 / 脱ユビキチン化酵素 / 中枢性胚細胞腫 / c-KIT変異 / ジャーミノーマ / NGGCT / 分子シグナル / 動物モデル / 胚細胞腫 / 基礎腫瘍学 / シグナル伝達 / トランスレーショナルリサーチ
Outline of Final Research Achievements

Intracranial germ cell tumors (CNS GCTs) frequently occur in Japan among all over the world. However, the molecular mechanisms which regulate malignancy of iGCTs are not well-elucidated yet. We analyzed the samples of iGCTs from all over Japan and discovered a novel molecule which was specifically frequently mutated in the non-germinomatous germ cell tumors (NGGCTs) among iGCTs. In addition, this mutated molecule upregulated the malignancy of two NGGCT cell lines in vitro. Furthermore, in vivo model using same NGGCT cells also revealed contribution of this mutated molecule in oncogenicity of these cells. Collectively, we concluded a novel NGGCT-specific oncogenic driver gene, which would be a novel therapeutic target of NGGCTs, was identified.

Academic Significance and Societal Importance of the Research Achievements

世界中でも特に日本で多く発症し、現在においても極めて予後不良であるNGGCTで特異的に変異を起こしている遺伝子と、その産生分子により活性化されるNGGCT細胞における発がん分子シグナルを同定したことにより、これまで特に日本人で大きな問題となっていた難治性疾患に対する初めての治療法開発に繋がる可能性があると考えられた。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (12 results)

All 2020 2019

All Journal Article (5 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 5 results,  Invited: 2 results)

  • [Journal Article] GCT-22. PROTEIN DEUBIQUITINATION PATHWAY IS A NOVEL THERAPEUTIC TARGET AGAINST MALIGNANT NON-GERMINOMATOUS CNS GERM CELL TUMORS2020

    • Author(s)
      Arata Tomiyama, Eita Uchida, Kojiro Wada, Koichi Ichimura
    • Journal Title

      Neuro-Oncology

      Volume: Volume 22, Issue Supplement_3 Issue: Supplement_3 Pages: iii332-iii332

    • DOI

      10.1093/neuonc/noaa222.242

    • Related Report
      2020 Annual Research Report
  • [Journal Article] CBMS-11 PROTEIN DEUBIQUITINATION PATHWAY IS A NOVEL THERAPEUTIC TARGET AGAINST MALIGNANT CNS NON-GERMINOMATOUS GERM CELL TUMORS2020

    • Author(s)
      Arata Tomiyama, Eita Uchida, Daisuke Kawauchi, Kojiro Wada, Kouchi Ichimura
    • Journal Title

      Neuro-Oncology Advances

      Volume: Volume 2, Issue Supplement_3 Issue: Supplement_3 Pages: ii4-ii5

    • DOI

      10.1093/noajnl/vdaa143.018

    • Related Report
      2020 Annual Research Report
  • [Journal Article] <こっそり入門 脳神経外科医のための分子生物学> ◆今さら聞けない 臨床に必要な遺伝子診断 ・今さ らですが…… 小児脳腫瘍に特徴的な遺伝子異常,特に今回はグリオーマ以外の話も交えて2019

    • Author(s)
      富山 新太、市村 幸一、森 健太郎
    • Journal Title

      脳神経外科速報

      Volume: vol.29 no.3 Pages: 284-292

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] SPDR-06 PROTEIN DEUBIQUITINATION PATHWAY IS A NOVEL THERAPEUTIC TARGET AGAINST MALIGNANT CNS NON-GERMINOMATOUSPDR-06 PROTEIN DEUBIQUITINATION PATHWAY IS A NOVEL THERAPEUTIC TARGET AGAINST MALIGNANT CNS NON-GERMINOMATOUS GERM CELL TUMORSS GERM CELL TUMORS2019

    • Author(s)
      Arata Tomiyama, Eita Uchida,Arata Tomiyama, Eita Uchida, Tatsuya Kobayashi, Kojiro Wada, Kouichi Ichimura Tatsuya Kobayashi, Kojiro Wada, Kouichi Ichimura
    • Journal Title

      Neuro-Oncology Advances

      Volume: Vol 1, Supplement_2 Issue: Supplement_2 Pages: ii47-ii53

    • DOI

      10.1093/noajnl/vdz039

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] <こっそり入門 脳神経外科医のための分子生物学> ◆今さら聞けない 臨床に必要な遺伝子診断 ・今さらですが…… 小児脳腫瘍に特徴的な遺伝子異常,特に今回はグリオーマ以外の話も交えて2019

    • Author(s)
      富山 新太、市村 幸一、森 健太郎
    • Journal Title

      脳神経外科速報

      Volume: vol.29 no.3 Pages: 284-292

    • Related Report
      2018 Research-status Report
  • [Presentation] Protein deubiquitination pathway is a novel therapeutic target against malignant non-germinomatous CNS germ cell tumors2020

    • Author(s)
      Arata Tomiyama, Eita Uchida, Daisuke Kawauchi1, Kojiro Wada, Koichi Ichimura
    • Organizer
      ISPNO2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Protein deubiquitination pathway is a novel therapeutic target against malignant non-germinomatous CNS germ cell tumors2020

    • Author(s)
      Arata Tomiyama, Eita Uchida, Daisuke Kawauchi1, Kojiro Wada, Koichi Ichimura
    • Organizer
      第38回日本脳腫瘍学会学術集会(国際学会)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Protein deubiquitination pathway is a novel therapeutic target against malignant non-germinomatous CNS germ cell tumors2020

    • Author(s)
      Arata Tomiyama, Eita Uchida, Daisuke Kawauchi1, Kojiro Wada, Koichi Ichimura
    • Organizer
      日本脳神経外科学会第79回学術総会(国際学会)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] PROTEIN DEUBIQUITINATION PATHWAY IS A NOVEL THERAPEUTIC TARGET AGAINST MALIGNANT CNS NON-GERMINOMATOUS GERM CELL TUMORS2019

    • Author(s)
      Arata Tomiyama, Eita Uchida, Tatsuya Kobayashi, Kojiro Wada, Kouichi Ichimura
    • Organizer
      第37回日本脳腫瘍学会学術集会
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 脱ユビキチン化反応関連分子ならびにMAPK経路は 高悪性度中枢性胚細胞腫の治療標的となり得る。2019

    • Author(s)
      富山 新太、内田 栄太、小林 達弥、和田 孝次朗、市村 幸一
    • Organizer
      日本脳神経外科学会第78回学術総会
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 中枢性胚細胞腫の新規治療標的の探索 ・・・抗てんかん薬の役割も考慮して2019

    • Author(s)
      富山 新太、内田 栄太、市村 幸一
    • Organizer
      東京脳腫瘍治療懇話会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 中枢性胚細胞腫の新規治療標的の探索 ・・・抗てんかん薬の役割も考慮して2019

    • Author(s)
      富山 新太、内田 栄太、市村 幸一
    • Organizer
      脳腫瘍治療k懇話会
    • Related Report
      2018 Research-status Report
    • Invited

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Published: 2017-04-28   Modified: 2022-01-27  

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