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Development of anti-cancer strategy using IDH gene activation

Research Project

Project/Area Number 18K07214
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 InstitutionOkayama University of Science

Principal Investigator

Kanki Keita  岡山理科大学, 生命科学部, 准教授 (10516876)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords肝細胞癌 / IDH / 脱分化 / 癌悪性化 / 低酸素応答 / 悪性化 / HDAC / 低酸素シグナル / 上皮間葉系移行
Outline of Final Research Achievements

Anti-cancer strategy using isocitrate dehydrogenase (IDH) activation was investigated in hepatocellular carcinoma (HCC) cells. IDH expression in HCC cells paralleled with a differentiation status, being downregulated during dedifferentiation induced by TGF-β signaling, Sonic hedgehog signaling and HDAC activation. Restoration of IDH expression was shown to play a role for inhibiting hypoxic response, an major cellular signaling for cancer progression, in HCC cells. Comparative study of three IDH-subtypes revealed that diverse function of these molecules in cancer cells

Academic Significance and Societal Importance of the Research Achievements

本研究では癌細胞の脱分化において発現低下するTCA回路代謝酵素の一つであるイソクエン酸脱水素酵素(IDH)に着目し、その発現賦活化により癌細胞悪性化を抑止する機構を明らかにすることを目的とした。IDHについては腫瘍学分野では癌促進作用のある変異型IDHについての研究が広く進められているが、それに比べ野生型IDHの癌細胞における働きについてはあまり知られていない。本研究で野生型IDHの低酸素応答抑制作用や、サブタイプによる違いを明らかにしたことは、IDH変異の報告のない癌種において共有される貴重な情報となる。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (8 results)

All 2021 2020 2019 2018

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (6 results)

  • [Journal Article] HDAC9 Is Preferentially Expressed in Dedifferentiated Hepatocellular Carcinoma Cells and Is Involved in an Anchorage-Independent Growth2020

    • Author(s)
      Keita Kanki, Ryota Watanabe, Le Nguyen Thai, Chun-Hao Zhao, Kyoko Naito
    • Journal Title

      Cancers

      Volume: 12 Issue: 10 Pages: 2734-2746

    • DOI

      10.3390/cancers12102734

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Hedgehog Signal Inhibitor GANT61 Inhibits the Malignant Behavior of Undifferentiated Hepatocellular Carcinoma Cells by Targeting Non-Canonical GLI Signaling.2020

    • Author(s)
      Harada K, Ohashi R, Naito K, Kanki K
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 21 Issue: 9 Pages: 3126-3126

    • DOI

      10.3390/ijms21093126

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] HDAC9 is preferentially expressed in dedifferentiated hepatocellular carcinoma cells and is involved in an anchorage-independent growth2021

    • Author(s)
      神吉けい太
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 肝癌細胞におけるヘッジホッグ経路阻害剤GANT-61の抗腫瘍効果2019

    • Author(s)
      神吉けい太、原田健資
    • Organizer
      第26回肝細胞研究会
    • Related Report
      2019 Research-status Report 2018 Research-status Report
  • [Presentation] Anti-tumor effect of hedgehog pathway inhibitor GANT61 in undifferentiated liver cancer cells.2019

    • Author(s)
      Keita Kanki
    • Organizer
      第78回日本癌学会学術総会
    • Related Report
      2019 Research-status Report
  • [Presentation] 未分化肝癌細胞におけるヘッジホッグ阻害剤GANT61の抗腫瘍効果2019

    • Author(s)
      神吉けい太
    • Organizer
      第78回日本癌学会学術総会
    • Related Report
      2018 Research-status Report
  • [Presentation] イソクエン酸脱水素酵素が肝細胞癌上皮間葉系移行に与える影響2018

    • Author(s)
      植村仁、神吉けい太
    • Organizer
      第25回肝細胞研究会
    • Related Report
      2018 Research-status Report
  • [Presentation] イソクエン酸脱水素酵素発現がTGFβ誘導肝癌細胞上皮間葉移行における細胞分化状態に与える影響2018

    • Author(s)
      神吉けい太
    • Organizer
      第77回日本癌学会学術総会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2023-01-30  

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