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New Treatment Strategy for Chemoresistant Urothelial Carcinoma Regarding of Metabolic Reprogramming

Research Project

Project/Area Number 21K20811
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0901:Oncology and related fields
Research InstitutionKeio University

Principal Investigator

SHIGETA KEISUKE  慶應義塾大学, 医学部(信濃町), 訪問研究員 (10649875)

Project Period (FY) 2021-08-30 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords尿路上皮癌 / 抗癌剤耐性 / 代謝リプログラミング / IDH2 / イソクエン酸デヒドロゲナーゼ / 嫌気解糖系 / メタボローム解析 / 膀胱癌 / グルタミン / ペントースリン酸回路 / 抗癌剤耐性尿路上皮癌
Outline of Research at the Start

申請者は、抗癌剤耐性尿路上皮癌細胞を用いて細胞内代謝メタボローム解析により見出したメタボリックリプログラミングによる癌の進化解析を行う。抗癌剤耐性UC株は好気的リン酸化から嫌気解糖系およびTCA回路の逆行により酸素に依存しないエネルギー回路に依存している。その中心的役割を果たす酵素にIDH2があげられ、IDH2のdown regulationや阻害剤投与により代謝メタボロームが阻害され、抗癌剤感受性変化を確認する。

Outline of Final Research Achievements

We found a unique metabolism in chemo resistant urothelial carcinoma (UC). One key finding is the increased glycolytic flux observed in gemcitabine-resistant UC cells. This metabolic reprogramming promotes the activation of the pentose phosphate pathway (PPP), leading to enhanced pyrimidine biosynthesis. Consequently, there is an increase in the production of deoxycytidine triphosphate (dCTP), which competitively inhibits the therapeutic effects of gemcitabine. The study also identified the induction of reductive carboxylation flux of glutamine to citrate, a process known as the "reductive tricarboxylic acid (TCA) cycle," in gemcitabine-resistant UC cells. This phenomenon is mediated by the expression of the enzyme IDH2, which leads to the accumulation of 2-hydroxyglutarate (2-HG). The accumulation of 2-HG stabilizes hypoxia-inducible factor 1-alpha (Hif1-α), establishing an aerobic metabolic reprogramming in gemcitabine-resistant UC.

Academic Significance and Societal Importance of the Research Achievements

膀胱癌細胞は抗癌剤暴露の過程で細胞内代謝機構をリプログラミングすることで抗癌剤耐性機構を獲得することが分かった。IDH2阻害によるHif1-αの制御が難治癌を克服する新規治療標的になりうることが示唆された。IDH2阻害薬は悪性脳腫瘍や再発性急性骨髄性白血病に一部臨床応用が開始されていることから、今後IDH2を標的とした新規治療法の開発は治療選択の乏しい抗癌剤耐性UC患者への予後向上に向けて大きく寄与すると考えている。

Report

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

    (8 results)

All 2023 2022 2021

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] IDH2 stabilizes HIF‐1α‐induced metabolic reprogramming and promotes chemoresistance in urothelial cancer2023

    • Author(s)
      Shigeta Keisuke、Hasegawa Masanori、Hishiki Takako、Naito Yoshiko、Baba Yuto、Mikami Shuji、Matsumoto Kazuhiro、Mizuno Ryuichi、Miyajima Akira、Kikuchi Eiji、Saya Hideyuki、Kosaka Takeo、Oya Mototsugu
    • Journal Title

      The EMBO Journal

      Volume: 42 Issue: 4 Pages: 1-27

    • DOI

      10.15252/embj.2022110620

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Does neoadjuvant chemotherapy have therapeutic benefit for node-positive upper tract urothelial carcinoma? Results of a multi-center cohort study2022

    • Author(s)
      Shigeta Keisuke、Matsumoto Kazuhiro、Ogihara Koichiro、Murakami Tetsushi、Anno Tadatsugu、Umeda Kota、Izawa Mizuki、Baba Yuto、Sanjo Tansei、Shojo Kazunori、Tanaka Nobuyuki、Takeda Toshikazu、Morita Shinya、Kosaka Takeo、Mizuno Ryuichi、Arita Yuki、Akita Hirotaka、Jinzaki Masahiro、Kikuchi Eiji、Oya Mototsugu
    • Journal Title

      Urologic Oncology: Seminars and Original Investigations

      Volume: 40 Issue: 3 Pages: 19-26

    • DOI

      10.1016/j.urolonc.2021.07.029

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Evaluating the Oncological Outcomes of Pure Laparoscopic Radical Nephroureterectomy Performed for Upper-Tract Urothelial Carcinoma Patients: A Multicenter Cohort Study Adjusted by Propensity Score Matching2021

    • Author(s)
      Shigeta Keisuke、Matsumoto Kazuhiro、Takeda Toshikazu、Hattori Seiya、Kaneko Gou、Matsushima Masashi、Abe Takayuki、Tanaka Nobuyuki、Mizuno Ryuichi、Asanuma Hiroshi、Kikuchi Eiji、Oya Mototsugu
    • Journal Title

      Annals of Surgical Oncology

      Volume: 28 Issue: 1 Pages: 465-473

    • DOI

      10.1245/s10434-020-09046-9

    • Related Report
      2021 Research-status Report
  • [Presentation] 尿路上皮癌細胞における細胞内代謝リプログラミング機構と抗癌剤耐性機序との関連2022

    • Author(s)
      Keisuke Shigeta, Eiji Kikuchi1, Masanori Hasegawa, Kazuhiro Matsumoto, Takeo Kosaka, Ryuichi Mizuno, Akira Miyajima, Mototsugu Oya
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Isocitrate dehydrogenase 2 Regulates Intracellular Metabolic Reprogramming in Chemo-resistant Urothelial Carcinoma2022

    • Author(s)
      Shigeta K, Hasegawa M, Kosaka T, Matsumoto K, Mizuno R, Miyajima A, Kikuchi E, Oya M
    • Organizer
      36th EAU Annual Congress, 2021
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Isocitrate dehydrogenase 2 Regulates Intracellular Metabolic Reprogramming in Chemo-resistant Urothelial Carcinoma2021

    • Author(s)
      Shigeta K, Hasegawa M, Kosaka T, Matsumoto K, Mizuno R, Miyajima A, Kikuchi E, Oya M
    • Organizer
      36th EAU Annual Congress, 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Gemcitabine Resistant Urothelial Cancer Cell may Acquire Cross Resistance to Cisplatin via Intracelluar Metabolic Reprogramming2021

    • Author(s)
      Shigeta K, Kikuchi E, Hasegawa M, Matsumoto K, Kosaka T, Mizuno R, Mikami S, Oya M
    • Organizer
      35th EAU Annual Congress, 2020
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Gemcitabine Resistant Urothelial Carcinoma Acquires Cross Resistance to Cisplatin by Altering Intracellular Metabolism2021

    • Author(s)
      Shigeta K, Kikuchi E, Hasegawa M, Matsumoto K, Kosaka T, Mizuno R, Mikami S, Oya M
    • Organizer
      第79回日本癌学会学術集会
    • Related Report
      2021 Research-status Report

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Published: 2021-10-22   Modified: 2024-01-30  

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