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Comprehensive analysis of the effect of metabolic environment on cytotoxic T cells in canine melanoma

Research Project

Project/Area Number 20K15680
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 42020:Veterinary medical science-related
Research InstitutionYamaguchi University

Principal Investigator

Igase Masaya  山口大学, 共同獣医学部, 助教 (70847110)

Project Period (FY) 2020-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords犬 / メラノーマ / 低酸素 / 解糖系 / 腫瘍微小環境 / 代謝 / 免疫 / 免疫療法
Outline of Research at the Start

メラノーマに対する新規治療法として、免疫チェックポイント分子阻害抗体を用いた免疫療法が注目されているが、完全に腫瘍を退縮させるには至らず、その原因の解明と打開策が求められている。腫瘍局所の環境は、不完全な血管新生や腫瘍細胞の解糖系亢進により、低酸素、低栄養状態になっている。近年、その腫瘍局所の代謝環境が免疫療法の治療効果を減弱させる要因の1つであると考えられている。本研究では、犬メラノーマの腫瘍局所の代謝環境により変化する細胞傷害性T細胞の代謝と免疫反応の関係性を解析することで、代謝制御による犬メラノーマの新規治療アプローチの開発を行う。

Outline of Final Research Achievements

To assess the effects of the local metabolic environment of canine melanoma on immune cells including T lymphocytes, immunohistochemical staining of tumor tissue and measurement of lymphocyte activation capacity were performed. The results revealed that the culture supernatant of hypoxic canine melanoma cells contained immunosuppressive factors, and 20 genes that were candidates for those factors could be identified by RNA-seq.

Academic Significance and Societal Importance of the Research Achievements

現在、獣医療において市販されている免疫チェックポイント分子阻害薬はないが、国内外の研究グループが開発を進めており、現場で使用できる日も近くなっている。これまでの獣医師主導臨床試験の結果では、一部のメラノーマ症例で治療効果を示すものの、大部分が治療抵抗性を示している。そのため、その原因の解明が必要とされているが、犬において腫瘍局所の代謝と免疫に焦点を当てた研究は行われていない。そのため、低酸素化によりメラノーマ細胞から放出される免疫抑制性因子が同定され、その制御が可能となれば、将来的に腫瘍局所の代謝環境を制御することによる新しい免疫治療アプローチの創出が期待できる。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (14 results)

All 2022 2021 2020

All Journal Article (11 results) (of which Peer Reviewed: 11 results,  Open Access: 5 results) Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Optimization of Culture Conditions for the Generation of Canine CD20-CAR-T Cells for Adoptive Immunotherapy2022

    • Author(s)
      SAKAI OSAMU、YAMAMOTO HIROKA、IGASE MASAYA、MIZUNO TAKUYA
    • Journal Title

      In Vivo

      Volume: 36 Issue: 2 Pages: 764-772

    • DOI

      10.21873/invivo.12763

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mismatch repair deficiency in canine neoplasms2021

    • Author(s)
      Inanaga Sakuya、Igase Masaya、Sakai Yusuke、Tanabe Mika、Shimonohara Nozomi、Itamoto Kazuhito、Nakaichi Munekazu、Mizuno Takuya
    • Journal Title

      Veterinary Pathology

      Volume: 58 Issue: 6 Pages: 1058-1063

    • DOI

      10.1177/03009858211022704

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of a cell line-based assay to measure the antibody-dependent cellular cytotoxicity of a canine therapeutic antibody2021

    • Author(s)
      Mizuno Takuya、Takeda Yoshiho、Tsukui Toshihiro、Igase Masaya
    • Journal Title

      Veterinary Immunology and Immunopathology

      Volume: 240 Pages: 110315-110315

    • DOI

      10.1016/j.vetimm.2021.110315

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of a monoclonal antibody for the detection of anti-canine CD20 chimeric antigen receptor expression on canine CD20 chimeric antigen receptor-transduced T cells2021

    • Author(s)
      SAKAI Osamu、OGINO Shoji、TSUKUI Toshihiro、IGASE Masaya、MIZUNO Takuya
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: advpub Issue: 0 Pages: 1495-1499

    • DOI

      10.1292/jvms.21-0326

    • NAID

      130008100557

    • ISSN
      0916-7250, 1347-7439
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Expression of DEP Domain-Containing 1B in Canine Lymphoma and Other Types of Canine Tumours2021

    • Author(s)
      Morinaga Yuki、Igase Masaya、Yanase Takuma、Sakai Yusuke、Sakai Hiroki、Fujiwara-Igarashi Aki、Tsujimoto Hajime、Okuda Masaru、Mizuno Takuya
    • Journal Title

      Journal of Comparative Pathology

      Volume: 185 Pages: 55-65

    • DOI

      10.1016/j.jcpa.2021.04.005

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A pilot clinical study of the therapeutic antibody against canine PD-1 for advanced spontaneous cancers in dogs2020

    • Author(s)
      Igase Masaya、Nemoto Yuki、Itamoto Kazuhito、Tani Kenji、Nakaichi Munekazu、Sakurai Masashi、Sakai Yusuke、Noguchi Shunsuke、Kato Masahiro、Tsukui Toshihiro、Mizuno Takuya
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 18311-18311

    • DOI

      10.1038/s41598-020-75533-4

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Establishment and Characterization of Monoclonal Antibody Against Canine CD8 Alpha2020

    • Author(s)
      Sakai Osamu、Ii Tatsuhito、Uchida Kazuyuki、Igase Masaya、Mizuno Takuya
    • Journal Title

      Monoclonal Antibodies in Immunodiagnosis and Immunotherapy

      Volume: 39 Issue: 4 Pages: 129-134

    • DOI

      10.1089/mab.2020.0002

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] The inhibitory effect of canine interferon gamma on the growth of canine tumors2020

    • Author(s)
      Hamamura Yuki、Nakagawa Takayuki、Okuda Masaru、Noguchi Shunsuke、Igase Masaya、Mizuno Takuya
    • Journal Title

      Research in Veterinary Science

      Volume: 132 Pages: 466-473

    • DOI

      10.1016/j.rvsc.2020.08.007

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Establishment of rat anti-canine DEP domain containing 1B (DEPDC1B) monoclonal antibodies2020

    • Author(s)
      IGASE Masaya、MORINAGA Yuki、KATO Masahiro、TSUKUI Toshihiro、SAKAI Yusuke、OKUDA Masaru、MIZUNO Takuya
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: 82 Issue: 4 Pages: 483-487

    • DOI

      10.1292/jvms.19-0667

    • NAID

      130007831571

    • ISSN
      0916-7250, 1347-7439
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Optimization of canine CD20 chimeric antigen receptor T cell manufacturing and in vitro cytotoxic activity against B‐cell lymphoma2020

    • Author(s)
      Sakai Osamu、Igase Masaya、Mizuno Takuya
    • Journal Title

      Veterinary and Comparative Oncology

      Volume: 18 Issue: 4 Pages: 739-752

    • DOI

      10.1111/vco.12602

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Generation of a canine anti-canine CD20 antibody for canine lymphoma treatment2020

    • Author(s)
      Mizuno Takuya、Kato Yukinari、Kaneko Mika K.、Sakai Yusuke、Shiga Toshinori、Kato Masahiro、Tsukui Toshihiro、Takemoto Hirofumi、Tokimasa Akio、Baba Kenji、Nemoto Yuki、Sakai Osamu、Igase Masaya
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 11476-11476

    • DOI

      10.1038/s41598-020-68470-9

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 犬のリンパ球における5-アミノレブリン酸のIL-17産生増強作用2021

    • Author(s)
      伊賀瀬 雅也, 岩谷 直, 酒井 和紀, 渡邊 健司, 水上 洋一, 水野 拓也
    • Organizer
      第164回日本獣医学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 5-アミノレブリン酸が犬のリンパ球に及ぼす影響の検討2021

    • Author(s)
      伊賀瀬雅也、岩谷直、酒井和紀、水野拓也
    • Organizer
      第17回日本獣医内科学アカデミー学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] The effect of 5-aminolevulinic acid (5-ALA) in canine lymphocytes2021

    • Author(s)
      Masaya IGASE, Nao IWATANI, Aki SAKAI, Takuya MIZUNO
    • Organizer
      The 5th international symposium (Association of Japan-Indonesia Veterinary Education)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research

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Published: 2020-04-28   Modified: 2023-01-30  

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