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Molecular mechanism of subtype shift underlying plasticity and therapy-resistance in glioblastoma

Research Project

Project/Area Number 20K07566
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 InstitutionKanazawa University

Principal Investigator

Kobayashi Masahiko  金沢大学, がん進展制御研究所, 助教 (70285633)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsグリオーマ / 膠芽腫 / 悪性脳腫瘍
Outline of Research at the Start

悪性神経膠腫は治療抵抗性の予後不良悪性疾患であり、有効な治療法はまだない。原因の一つに、グリオーマ細胞の形質が不均一かつ可塑的であることが挙げられる。グリオーマは4つのサブタイプに分類され、様々なストレスにより腫瘍内においてサブタイプの転換が起こる。この機構の理解が、治療抵抗性獲得の解明の鍵になると期待されている。本研究では、患者由来グリオーマ細胞へのリポーター遺伝子導入法を駆使し、OLIG2の発現制御および機能解析を通して、細胞系譜転換と治療抵抗性獲得の間の分子機構の解明を目指す。本研究により、細胞系譜転換を抑制し、治療抵抗性を克服するための新たなアプローチの発見が期待される。

Outline of Final Research Achievements

Glioblastoma (GBM), the most aggressive type of brain tumor, is classified into some subtypes in which mesenchymal subtype GBM is therapy-resistant. Radiation and temozolomide are main therapeutics for GBM, however, recurrence occurs due to therapy-resistance through proneural-mesenchymal transition. The mechanisms of this subtype-shift and therapy-resistance in mesenchymal subtype have been unclear. To address these questions, we focused on a mesenchymal subtype and therapy-resistance marker, CD44. In this study, we found that hypoxia and OLIG2 suppressed CD44 levels and therapy-resistance. RNA-seq analysis showed lysosome-related genes were up-regulated in the CD44-high subpopulation. A lysosome inhibitor increased the sensitivity of CD44-high subpopulation to temozolomide and radiation.

Academic Significance and Societal Importance of the Research Achievements

膠芽腫(グリオブラストーマ)の細胞系譜転換のメカニズムを明らかにし、治療抵抗性に働く経路を特定した本研究成果をさらに発展させることによって、治療抵抗性腫瘍に対しても、これまでの治療法をより効果的に作用させる方法の開発につながるものと考えられる。

Report

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

    (11 results)

All 2022 2021 2020

All Journal Article (5 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (5 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Therapeutic advantage of targeting lysosomal membrane integrity supported by lysophagy in malignant glioma2022

    • Author(s)
      Jing Yongwei、Kobayashi Masahiko、Vu Ha Thi、Kasahara Atsuko、Chen Xi、Pham Loc Thi、Kurayoshi Kenta、Tadokoro Yuko、Ueno Masaya、Todo Tomoki、Nakada Mitsutoshi、Hirao Atsushi
    • Journal Title

      Cancer Science

      Volume: 113 Issue: 8 Pages: 2716-2726

    • DOI

      10.1111/cas.15451

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] RHEB is a potential therapeutic target in T cell acute lymphoblastic leukemia2022

    • Author(s)
      Pham Loc Thi、Peng Hui、Ueno Masaya、Kohno Susumu、Kasada Atuso、Hosomichi Kazuyoshi、Sato Takehiro、Kurayoshi Kenta、Kobayashi Masahiko、Tadokoro Yuko、Kasahara Atsuko、Shoulkamy Mahmoud I.、Xiao Bo、Worley Paul F.、Takahashi Chiaki、Tajima Atsushi、Hirao Atsushi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 621 Pages: 74-79

    • DOI

      10.1016/j.bbrc.2022.06.089

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Essential role of autophagy in protecting neonatal haematopoietic stem cells from oxidative stress in a p62-independent manner2021

    • Author(s)
      Nomura Naho、Ito Chiaki、Ooshio Takako、Tadokoro Yuko、Kohno Susumu、Ueno Masaya、Kobayashi Masahiko、Kasahara Atsuko、Takase Yusuke、Kurayoshi Kenta、Si Sha、Takahashi Chiaki、Komatsu Masaaki、Yanagawa Toru、Hirao Atsushi
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 1666-1679

    • DOI

      10.1038/s41598-021-81076-z

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Pillar[6]arene acts as a biosensor for quantitative detection of a vitamin metabolite in crude biological samples2020

    • Author(s)
      Masaya Ueno, Takuya Tomita, Hiroshi Arakawa, Takahiro Kakuta, Tada-aki Yamagishi, Jumpei Terakawa, Takiko Daikoku, Shin-ichi Horike, Sha Si, Kenta Kurayoshi, Chiaki Ito, Atsuko Kasahara, Yuko Tadokoro, Masahiko Kobayashi, Tsutomu Fukuwatari, Ikumi Tamai, Atsushi Hirao & Tomoki Ogoshi
    • Journal Title

      Communications Chemistry

      Volume: 3

    • NAID

      120006939157

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Identification of 2-Fluoropalmitic Acid as a Potential Therapeutic Agent Against Glioblastoma2020

    • Author(s)
      Jiapaer Shabierjiang、Furuta Takuya、Dong Yu、Kitabayashi Tomohiro、Sabit Hemragul、Zhang Jiakang、Zhang Guangtao、Tanaka Shingo、Kobayashi Masahiko、Hirao Atsushi、Nakada Mitsutoshi
    • Journal Title

      Current Pharmaceutical Design

      Volume: 26 Issue: 36 Pages: 4675-4684

    • DOI

      10.2174/1381612826666200429092742

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Identification of regulatory molecules of mesenchymal phenotype in glioblastoma2022

    • Author(s)
      Kobayashi Masahiko、Jing Yongwei、Hirao Atsushi
    • Organizer
      第81回日本癌学会学術総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] A novel therapeutic strategy for glioma by targeting lysosome membrane integrity combined with amino acid restriction2022

    • Author(s)
      Jing Yongwei、Kobayashi Masahiko、Hirao Atsushi
    • Organizer
      第81回日本癌学会学術総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Acquisition of therapy-resistance through proneural-mesenchymal transition in glioblastoma2021

    • Author(s)
      Masahiko Kobayashi, Yongwei Jing, Atsushi Hirao
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] A novel therapeutic strategy for glioblastoma by targeting lysosome membrane integrity controlled by autophagy activity2021

    • Author(s)
      Yongwei Jing, Masahiko Kobayashi, Atsushi Hirao
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] Investigation of the roles of OLIG2 in stemness property of glioblastoma2020

    • Author(s)
      Masahiko Kobayashi, Atsushi Hirao
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2020 Research-status Report
  • [Patent(Industrial Property Rights)] 腫瘍治療用医薬組成物2021

    • Inventor(s)
      平尾敦、Jing Yongwei、小林昌彦、中田光俊
    • Industrial Property Rights Holder
      平尾敦、Jing Yongwei、小林昌彦、中田光俊
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report

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

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