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Targeting PARG in malignant glioma therapy

Research Project

Project/Area Number 21K16630
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56010:Neurosurgery-related
Research InstitutionKobe University

Principal Investigator

Nagashima Hiroaki  神戸大学, 医学研究科, 助教 (00794950)

Project Period (FY) 2021-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2024: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2023: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
KeywordsGlioma / IDH wild-type / temozolomide / PARG / Wee1 / テモゾロミド / グリオーマ / WEE1 / 悪性神経膠腫 / DNA複製異常 / DNA damage / Temozolomide / PAR
Outline of Research at the Start

予後不良な悪性神経膠腫の新たな治療戦略として、標準治療で用いるアルキル化剤テモゾロミド(TMZ)の耐性化を回避し、感受性を増強させることが有用と考える。本研究では、患者由来神経膠腫幹細胞株を用い、TMZとPARG阻害薬の併用療法に対する新たな効果規定遺伝子(バイオマーカー)を探索するとともに、PARG阻害薬による抗腫瘍効果増強のメカニズムを解明し、臨床応用に向けた創薬や個別化医療の実現を目指す。

Outline of Final Research Achievements

We found a subgroup of highly malignant IDH wild-type gliomas in which the addition of a PARG inhibitor to the standard anticancer drug temozolomide (TMZ) markedly enhanced the cytotoxic effect, but the mechanism of cytotoxicity and the characteristics and genetic abnormalities of malignant gliomas in which the combination therapy is effective are not clear. However, the mechanism of cytotoxicity and the characteristics and genetic abnormalities of malignant gliomas that are effective in combination therapy have not been clarified. Through this study, we investigated the mechanism of resistance to TMZ + PARG inhibition and found that Wee1 plays an important role: even in cell lines that are not sensitive to TMZ + PARG inhibitors, the addition of a Wee1 inhibitor can lift resistance and force entry into cell cycle M apoptosis was induced by forced entry into M phase.

Academic Significance and Societal Importance of the Research Achievements

膠芽腫(GBM)は、最も悪性で致死的な脳腫瘍のひとつであり、手術、放射線療法、テモゾロミド(TMZ)による化学療法などの標準治療をもってしても生存期間の中央値は約15ヵ月である。TMZに対する耐性は臨床上の大きな問題であり、ほとんどのGBM患者は最終的に再発する。近年、TMZ耐性の背後にある分子メカニズムの解明や、ポリ(ADP-リボース)グリコヒドロラーゼ(PARG)阻害剤を含む新規併用療法などの感受性を予測できるバイオマーカーの同定に重点を置いた研究が進められている。本研究の結果は、TMZ耐性化の解明の一助となり、生存期間延長や遺伝子背景を基にした個別化治療への橋渡しになり社会的意義がある。

Report

(5 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (11 results)

All 2024 2023 Other

All Int'l Joint Research (4 results) Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Open Access: 3 results)

  • [Int'l Joint Research] Massachusetts General Hospital/Harvard Medical School(米国)

    • Related Report
      2024 Annual Research Report
  • [Int'l Joint Research] Massachusetts General Hospital(米国)

    • Related Report
      2023 Research-status Report
  • [Int'l Joint Research] Massachusetts General Hospital/Harvard Medical School(米国)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] Massachusetts General Hospital(米国)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Clinical Benefits of Photodynamic Therapy Using Talaporfin Sodium in Patients With Isocitrate Dehydrogenase-Wildtype Diagnosed Glioblastoma: A Retrospective Study of 100 Cases2024

    • Author(s)
      Fujimoto Yosuke、Fujita Yuichi、Tanaka Kazuhiro、Nagashima Hiroaki、Yamanishi Shunsuke、Ikeuchi Yusuke、Iwahashi Hirofumi、Sanada Shoji、Muragaki Yoshihiro、Sasayama Takashi
    • Journal Title

      Neurosurgery

      Volume: 13 Issue: 6 Pages: 1374-1385

    • DOI

      10.1227/neu.0000000000003247

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Association between accumulation of 2-hydroxyglutarate detected by MR spectroscopy and preoperative seizure in IDH-mutant glioma2024

    • Author(s)
      Nagashima Hiroaki、Tanaka Kazuhiro、Yamanishi Shunsuke、Hashiguchi Mitsuru、Iwahashi Hirofumi、Uno Takiko、Somiya Yuichiro、Komatsu Masato、Itoh Tomoo、Sasaki Ryohei、Sasayama Takashi
    • Journal Title

      Journal of Neurosurgery

      Volume: 712-721 Pages: 712-721

    • DOI

      10.3171/2024.6.jns24166

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Association of preoperative seizures with reduced expression of soluble CD163, an M2 macrophage marker, in the cerebrospinal fluid in isocitrate dehydrogenase wild-type glioblastoma2024

    • Author(s)
      Yamanishi Shunsuke、Nagashima Hiroaki、Tanaka Kazuhiro、Uno Takiko、Ikeuchi Yusuke、Iwahashi Hirofumi、Hashiguchi Mitsuru、Horii Shintaro、Itoh Tomoo、Muragaki Yoshihiro、Sasayama Takashi
    • Journal Title

      Journal of Neuro-Oncology

      Volume: 171 Issue: 1 Pages: 95-103

    • DOI

      10.1007/s11060-024-04837-6

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Potential of GSPT1 as a novel target for glioblastoma therapy2024

    • Author(s)
      Sasayama Takashi、Hamada Takeshi、Tanaka Kazuhiro、Nagashima Hiroaki、Yamanishi Shunsuke、Ueyama Takehiko
    • Journal Title

      Cell Death & Disease

      Volume: 15 Issue: 8 Pages: 1-11

    • DOI

      10.1038/s41419-024-06967-1

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mutant IDH inhibitors induce lineage differentiation in IDH-mutant oligodendroglioma2024

    • Author(s)
      Spitzer Avishay、Gritsch Simon、Nomura Masashi、Nagashima Hiroaki, Landau Dan A.、Ligon Keith L.、Cahill Daniel P.、Suva Mario L.、Tirosh Itay
    • Journal Title

      Cancer Cell

      Volume: 42 Issue: 5 Pages: 904-914.e9

    • DOI

      10.1016/j.ccell.2024.03.008

    • Related Report
      2024 Annual Research Report 2023 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] <i>CDKN2A/B</i> Homozygous Deletion Sensitizes IDH-Mutant Glioma to CDK4/6 Inhibition2024

    • Author(s)
      Nasser Ali M.、Melamed Lisa、Wetzel Ethan A.、Chang Jenny Chia-Chen、Nagashima Hiroaki、Kitagawa Yosuke、Muzyka Logan、Wakimoto Hiroaki、Cahill Daniel P.、Miller Julie J.
    • Journal Title

      Clinical Cancer Research

      Volume: 30 Issue: 14 Pages: 2996-3005

    • DOI

      10.1158/1078-0432.ccr-24-0562

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 2-Hydroxyglutarate magnetic resonance spectroscopy in adult brainstem glioma.2023

    • Author(s)
      Iwahashi H, Nagashima H, Tanaka K, Uno T, Hashiguchi M, Maeyama M, Somiya Y, Komatsu M, Hirose T, Itoh T, Sasaki R, Sasayama T.
    • Journal Title

      J Neurosurg

      Volume: 1 Issue: 2 Pages: 1-1

    • DOI

      10.3171/2022.12.jns221954

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access

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Published: 2021-04-28   Modified: 2026-01-16  

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