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Can Anti-EGFR Antibodies Turn Colorectal Cancer into Hot Tumors?

Research Project

Project/Area Number 21K08755
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 55020:Digestive surgery-related
Research InstitutionYamaguchi University

Principal Investigator

Tomochika Shinobu  山口大学, 大学院医学系研究科, 助教 (30403679)

Co-Investigator(Kenkyū-buntansha) 恒富 亮一  山口大学, 医学部附属病院, 講師 (10420514)
硲 彰一  山口大学, 医学部, 特別医学研究員 (50253159)
鈴木 伸明  山口大学, 大学院医学系研究科, 講師 (50526910)
吉田 晋  山口大学, 医学部, 特別医学研究員 (60554805)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords癌 / TCRレパトア / 大腸癌肝転移 / TCRレパト
Outline of Research at the Start

我々は大腸癌肝転移の術前化学療法の影響を病理学的に検討した結果、Cetuximab (Cmab)使用群では化学療法単独群に比較して癌局所にCD8陽性T細胞の著明な浸潤を認め、Cmab投与によりHot tumorが誘導される可能性が示唆された。化学療法前後の大腸癌肝転移巣の病理学的解析、並びに、次世代 シーケンサーを用いた腫瘍浸潤リンパ球(TIL)のTCRレパト解析により、治療前後のPBMCと TILのTCRレパトがどのように変化するかを観察して、Cmabが"Cold tumor"である大腸癌を"Hot tumor"に変えることができるかを検証する。

Outline of Final Research Achievements

We investigated the effects of anti-EGFR or anti-VEGF monoclonal antibodies (mAb) on T-cell infiltration and T-cell receptor (TCR) repertoire variation in CRC liver metastases. T-cell infiltrations were approximately 83% (5/6) and 50% (2/4), following treatment with anti-EGFR or anti-VEGF mAb, respectively. TCR repertoire analysis revealed higher clonality and lower diversity of TCR alpha and beta (TRA and TRB) in the anti-VEGF mAb group than that in the anti-EGFR group mAb. Furthermore, the percentage of the common TCR clones between infiltrating T cells and T cells in peripheral blood was significantly lower in the anti-VEGF mAb group compared to that in the anti-EGFR mAb group. In conclusion, the population of T cells infiltrating liver metastases in the anti-VEGF mAB group differed from that in the anti-EGFR mAb group.

Academic Significance and Societal Importance of the Research Achievements

抗EGFR療法と比較して抗VEGF療法では、癌特異的T細胞浸潤が誘導される可能性が示唆された。本研究からの知見は、mCRCに対するさらなる併用療法を支持する情報を提供するものである。

Report

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

    (8 results)

All 2024 2023 2022

All Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results,  Open Access: 4 results) Presentation (2 results)

  • [Journal Article] High serum proteinase-3 levels predict poor progression-free survival and lower efficacy of bevacizumab in metastatic colorectal cancer2024

    • Author(s)
      Furuya Kei、Nakajima Masao、Tsunedomi Ryouichi、Nakagami Yuki、Xu Ming、Matsui Hiroto、Tokumitsu Yukio、Shindo Yoshitaro、Watanabe Yusaku、Tomochika Shinobu、Maeda Noriko、Iida Michihisa、Suzuki Nobuaki、Takeda Shigeru、Hazama Shoichi、Ioka Tatsuya、Hoshii Yoshinobu、Ueno Tomio、Nagano Hiroaki
    • Journal Title

      BMC Cancer

      Volume: 24 Issue: 1 Pages: 165-165

    • DOI

      10.1186/s12885-024-11924-4

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effect of Paxillin Expression and Phosphorylation on Colorectal Cancer Prognosis and Metastasis2024

    • Author(s)
      ZHENG HUANYU、TSUNEDOMI RYOUICHI、XU MING、ZHANG YING、KISHI HIROKO、KOBAYASHI SEI、TOMOCHIKA SHINOBU、NAKAJIMA MASAO、MATSUI HIROTO、TOKUMITSU YUKIO、SHINDO YOSHITARO、IIDA MICHIHISA、IOKA TATSUYA、NAGANO HIROAKI
    • Journal Title

      Anticancer Research

      Volume: 44 Issue: 2 Pages: 511-520

    • DOI

      10.21873/anticanres.16839

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] IL-6 Levels Correlate with Prognosis and Immunosuppressive Stromal Cells in Patients with Colorectal Cancer2023

    • Author(s)
      Yamamoto Tsunenori、Tsunedomi Ryouichi、Nakajima Masao、Suzuki Nobuaki、Yoshida Shin、Tomochika Shinobu、Xu Ming、Nakagami Yuki、Matsui Hiroto、Tokumitsu Yukio、Shindo Yoshitaro、Watanabe Yusaku、Iida Michihisa、Takeda Shigeru、Hazama Shoichi、Tanabe Tsuyoshi、Ioka Tatsuya、Hoshii Yoshinobu、Kiyota Akifumi、et al.
    • Journal Title

      Annals of Surgical Oncology

      Volume: 30 Issue: 8 Pages: 5267-5277

    • DOI

      10.1245/s10434-023-13527-y

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Anti-VEGF and Anti-EGFR Antibody Therapy on T-Cell Infiltration and TCR Variation in Metastatic Colorectal Cancer2023

    • Author(s)
      XU MING、TSUNEDOMI RYOUICHI、KIYOTANI KAZUMA、TOMOCHIKA SHINOBU、FURUYA KEI、NAKAJIMA MASAO、MATSUI HIROTO、TOKUMITSU YUKIO、SHINDO YOSHITARO、YOSHIDA SHIN、IIDA MICHIHISA、SUZUKI NOBUAKI、TAKEDA SHIGERU、IOKA TATSUYA、HAZAMA SHOICHI、NAGANO HIROAKI
    • Journal Title

      Anticancer Research

      Volume: 43 Issue: 2 Pages: 613-620

    • DOI

      10.21873/anticanres.16197

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Serum CCL7 Is a Novel Prognostic Biomarker of Metastatic Colorectal Cancer2022

    • Author(s)
      CHIDIMATSU HIKARI、TSUNEDOMI RYOUICHI、NAKAGAMI YUKI、XU MING、NAKAJIMA MASAO、NAKASHIMA-NAKASUGA CHIYO、TOMOCHIKA SHINOBU、et al
    • Journal Title

      Anticancer Research

      Volume: 43 Issue: 1 Pages: 105-114

    • DOI

      10.21873/anticanres.16139

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] CD4 and FOXP3 as predictive markers for the recurrence of T3/T4a stage II colorectal cancer: applying a novel discrete Bayes decision rule2022

    • Author(s)
      Nakagami Yuki、Hazama Shoichi、Suzuki Nobuaki、Yoshida Shin、Tomochika Shinobu、et al
    • Journal Title

      BMC Cancer

      Volume: 22 Issue: 1 Pages: 1071-1071

    • DOI

      10.1186/s12885-022-10181-7

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 抗VEGF抗EGFR抗体治療後の大腸がん肝転移巣におけるT細胞浸潤とTCRレパトア2023

    • Author(s)
      恒富亮一
    • Organizer
      第32回日本がん転移学会学術集会・総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 転移性大腸癌における T 細胞浸潤および TCR 変動に対する抗 VEGF2022

    • Author(s)
      徐明、恒富亮一、清谷一馬、友近忍、中島正夫、 松井洋人、徳光幸生、新藤芳太郎、吉田晋、飯田通久、 鈴木伸明、武田茂、井岡達也、硲彰一、永野浩昭
    • Organizer
      第81回日本癌学会学術総会
    • Related Report
      2022 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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