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Exploring cancer specific organelle nutrient sensors

Research Project

Project/Area Number 23K18234
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 50:Oncology and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Osawa Tsuyoshi  東京大学, 先端科学技術研究センター, 准教授 (50567592)

Project Period (FY) 2023-06-30 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2024: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2023: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywordsがん / 代謝 / オルガネラ / アミノ酸 / 栄養センサー
Outline of Research at the Start

がんの転移・浸潤・薬剤耐性などの悪性化には腫瘍微小環境が重要な役割を果たす。申請者は、グルタミンなどの非必須アミノ酸には、mTOR非依存的なゴルジ体を介した新規栄養センサーが存在する可能性を見出している。本研究は、これまで知られていないmTOR非依存的、且つがん細胞特異的な新規オルガネラ栄養センサーの探索を目的とし、がん特異的な新規栄養センサーを標的とした画期的な治療法の開発に繋げる挑戦的な研究としての意義を有する。本研究は、先天性アミノ酸代謝異常症などの小児難治性代謝疾患の新規メカニズム解明や治療法へと応用が広がる可能性も秘めている。

Outline of Final Research Achievements

This study aimed to explore and control novel cancer cell-specific nutrient sensors that are important for cancer cell survival and maintenance of stemness, and examined the following items. Establishment of gRNA screening system using organelle morphology as an indicator and identification of target genes: In this research component, (1) we established a system using a CRISPR gRNA library to sort cells with normal Golgi structure and cells with collapsed Golgi using imaging cytometry. (2) Using a cell collection device that can be operated under super-resolution microscopy, we were able to manually collect cells selectively under super-resolution microscopy using Golgi morphology as an indicator. In the future, we plan to identify target factors that maintain nutrient responsiveness using Golgi morphology as an indicator based on gRNA information from the collected cells.

Academic Significance and Societal Importance of the Research Achievements

アミノ酸経路はがん細胞のmTOR複合体を介した悪性化に重要だが、ラパマイシン等のmTOR阻害剤では根治に至らない。理由として、mTOR非依存的な栄養感知機構の存在が考えられる。本研究は申請者の低栄養培養系を用い、gRNAスクリーニング系とイメージングサイトメトリー、超解像イメージング細胞分取法を融合し、ゴルジ体を介した新規栄養センサーを同定する。mTOR非依存的栄養感知機構を標的とした次世代がん分子標的薬開発を目指す。オルガネラ栄養センサー発見による独創的アプローチで、がん治療法開発と先天性代謝異常疾患の病態解明への応用が期待される挑戦的研究である。

Report

(3 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • Research Products

    (23 results)

All 2025 2024 2023 Other

All Journal Article (11 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 11 results,  Open Access: 10 results) Presentation (8 results) (of which Int'l Joint Research: 1 results,  Invited: 8 results) Book (2 results) Remarks (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Immune evasion through mitochondrial transfer in the tumour microenvironment2025

    • Author(s)
      Ikeda H, Kawase K, Nishi T, Watanabe T, Takenaga K, Inozume T, Ishino T, Aki S, Lin J, Kawashima S, Togashi Y, et al
    • Journal Title

      Nature

      Volume: 638 Issue: 8049 Pages: 225-236

    • DOI

      10.1038/s41586-024-08439-0

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Vaccine Therapy for Heart Failure Targeting the Inflammatory Cytokine Igfbp72024

    • Author(s)
      Katoh Manami、Nomura Seitaro、Komuro Issei et al.
    • Journal Title

      Circulation

      Volume: 150 Issue: 5 Pages: 374-389

    • DOI

      10.1161/circulationaha.123.064719

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Scoring system for diagnosis and pretreatment risk assessment of neuroblastoma using urinary biomarker combinations2024

    • Author(s)
      Amano Hizuru, Uchida Hiroo, Harada Kazuharu, Narita Atsushi, Fumino Shigehisa, et al.
    • Journal Title

      Cancer Science

      Volume: - Issue: 5 Pages: 1634-1645

    • DOI

      10.1111/cas.16116

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Antibody-mimetic drug conjugate with efficient internalization activity using anti-HER2 VHH and duocarmycin2024

    • Author(s)
      Sakata Juri、Tatsumi Toshifumi、Sugiyama Akira, et al.
    • Journal Title

      Protein Expression and Purification

      Volume: 214 Pages: 106375-106375

    • DOI

      10.1016/j.pep.2023.106375

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Acidic Extracellular pH Drives Accumulation of N1-Acetylspermidine and Recruitment of Pro-Tumor Neutrophils2023

    • Author(s)
      Kato M, Maeda K, Nakahara R, Hirose H, Kondo A, Aki S, Sugaya M, Hibino S, Nishida M, Hasegawa M, Morita H, Ando R, Tsuchida R, Yoshida M, Kodama T, Yanai H, Shimamura T and Osawa T
    • Journal Title

      PNAS Nexus

      Volume: 10 Issue: 10 Pages: 1093-1093

    • DOI

      10.1093/pnasnexus/pgad306

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Hypoxia activates SREBP2 through Golgi disassembly in bone marrow-derived monocytes for enhanced tumor growth2023

    • Author(s)
      Nakahara R, Aki S, Sugaya M, Hirose H, Kato M, Maeda K, Sakamoto DM, Kojima Y, Nishida M, Ando R, Muramatsu M, Pan M, Tsuchida R, Matsumura Y, Yanai H, Takano H, Yao R, Sando S, Shibuya M, Sakai J, Kodama T, Kidoya H, Shimamura T, Osawa T.
    • Journal Title

      The EMBO Journal

      Volume: 42 Issue: 22 Pages: 15252-15252

    • DOI

      10.15252/embj.2023114032

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Tumor cell derived spermidine is an oncometabolite that suppresses TCR clustering for intratumoral CD8+ T cell activation2023

    • Author(s)
      Hibino S, Eto S, Hangai S, Endo K, Ashitani S, Sugaya M, Osawa T, Soga T, Taniguchi T and Yanai H
    • Journal Title

      PNAS

      Volume: 120 (24) Issue: 24

    • DOI

      10.1073/pnas.2305245120

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Convergent genomic diversity and novel BCAA metabolism in intrahepatic cholangiocarcinoma2023

    • Author(s)
      Kitagawa A, Osawa T,Noda M,Kobayashi Y, Aki S,Nakano Y,Saito T,Shimizu D,Komatsu H,Sugaya M,Takahashi J,...Mimori K.
    • Journal Title

      Br J Cancer

      Volume: - Issue: 12 Pages: 22068-22068

    • DOI

      10.1038/s41416-023-02256-4

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cancer metabolism within tumor microenvironments2023

    • Author(s)
      Aki Sho、Nakahara Ryuichi、Maeda Keisuke、Osawa Tsuyoshi
    • Journal Title

      Biochimica et Biophysica Acta (BBA) - General Subjects

      Volume: 1867 Issue: 5 Pages: 130330-130330

    • DOI

      10.1016/j.bbagen.2023.130330

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Metabolic adaptations of cancer in extreme tumor microenvironments2023

    • Author(s)
      Ryuichi Nakahara、Keisuke Maeda、Sho Aki、Tsuyoshi Osawa
    • Journal Title

      Cancer Science

      Volume: 114 Issue: 4 Pages: 1200-1207

    • DOI

      10.1111/cas.15722

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] NRF3 activates mTORC1 arginine-dependently for cancer cell viability2023

    • Author(s)
      Hirose Shuuhei、Waku Tsuyoshi、Tani Misato、Masuda Haruka、Endo Keiko、Ashitani Sanae、Aketa Iori、Kitano Hina、Nakada Sota、Wada Ayaka、Hatanaka Atsushi、Osawa Tsuyoshi、Soga Tomoyoshi、Kobayashi Akira
    • Journal Title

      iScience

      Volume: 26 Issue: 2 Pages: 106045-106045

    • DOI

      10.1016/j.isci.2023.106045

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 高深度オミクス解析によるがん代謝連関の解明2024

    • Author(s)
      大澤 毅
    • Organizer
      第1回未病検知のための学際領域展開ワークショップ
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] 高深度オミクス解析によるがん代謝連関の解明2024

    • Author(s)
      大澤 毅
    • Organizer
      第10回がんと代謝研究会
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] ニュートリオミクスから迫るがん悪性化機構の解明2024

    • Author(s)
      大澤 毅
    • Organizer
      The Eighth JCA-AACR Special Joint Conference 2024
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 高深度ニュートリオミクスから迫るがん悪性化機構の解明2024

    • Author(s)
      大澤 毅
    • Organizer
      第46回日本分子生物学会年会
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] 高深度オミクスから迫るがん悪性化機構の解明2024

    • Author(s)
      大澤 毅
    • Organizer
      第8回理論免疫学ワークショップ
    • Related Report
      2024 Annual Research Report
    • Invited
  • [Presentation] 高深度オミクスから迫るがん悪性化機構の解明2023

    • Author(s)
      大澤毅
    • Organizer
      第8回理論免疫学ワークショップ
    • Related Report
      2023 Research-status Report
    • Invited
  • [Presentation] 高深度ニュートリオミクスから迫るがん悪性化機構の解明2023

    • Author(s)
      大澤毅
    • Organizer
      計算疾患システム生物学シンポジウム
    • Related Report
      2023 Research-status Report
    • Invited
  • [Presentation] 高深度ニュートリオミクスから迫るがん悪性化機構の解明2023

    • Author(s)
      大澤毅
    • Organizer
      第46回日本分子生物学会年会
    • Related Report
      2023 Research-status Report
    • Invited
  • [Book] 実験デザインからわかる マルチオミクス研究実践テキスト2025

    • Author(s)
      大澤 毅、島村徹平
    • Total Pages
      296
    • Publisher
      羊土社
    • ISBN
      9784758122795
    • Related Report
      2024 Annual Research Report
  • [Book] マルチオミクス研究のすすめ ~ マルチオミクス データ駆動時代の疾患研究2023

    • Author(s)
      大澤 毅
    • Total Pages
      222
    • Publisher
      羊土社
    • Related Report
      2023 Research-status Report
  • [Remarks] 大澤研究室

    • URL

      https://www.onc.rcast.u-tokyo.ac.jp/ja/

    • Related Report
      2023 Research-status Report
  • [Patent(Industrial Property Rights)] 酵素阻害2024

    • Inventor(s)
      大澤毅、相川光介、菅谷麻希、西田美由紀、安藝翔、岡添隆
    • Industrial Property Rights Holder
      大澤毅、相川光介、菅谷麻希、西田美由紀、安藝翔、岡添隆
    • Industrial Property Rights Type
      特許
    • Filing Date
      2024
    • Related Report
      2024 Annual Research Report

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Published: 2023-07-04   Modified: 2026-01-16  

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