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Development of a new strategy to treat cancerous peritonitis

Research Project

Project/Area Number 21K19934
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 90:Biomedical engineering and related fields
Research InstitutionKawasaki Medical School

Principal Investigator

Nagasaka Takeshi  川崎医科大学, 医学部, 教授 (30452569)

Co-Investigator(Kenkyū-buntansha) 山口 佳之  川崎医科大学, 医学部, 教授 (10230377)
岡脇 誠  川崎医科大学, 医学部, 講師 (40509254)
谷岡 洋亮  川崎医科大学, 医学部, 特任研究員 (40775491)
矢野 修也  川崎医科大学, 医学部, 講師 (50794624)
Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2022: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2021: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords難治性癌性腹水 / 脱メチル化剤 / 新規養子免疫細胞療法 / 癌性腹膜炎 / 癌免疫 / メチル化 / 脱メチル化
Outline of Research at the Start

T細胞抑制レセプター(IR)は抗原暴露された瞬間から発現することが知られており、IRs発現の有無だけでは、T細胞がEffector stage にいるのか、Exhausted stageにいるのかを判断できない。我々は、DMR methylation patternを検出することにより、T細胞のstagingが可能となると考えている。
本研究では、腹水中T細胞を脱メチル化剤と共に培養を行い、Exhausted CD4/CD8T細胞を再活性化へと誘導することによる難治性癌性腹水患者への新規治療法の開発、T細胞のstagingを可能とするmethylation pattern検出技術の開発を試みる。

Outline of Final Research Achievements

In this study, immune cells and cancer cells obtained from ascites of patients with refractory malignant ascites were co-cultured using the Cell-free and Concentrated Ascites Reinfusion Therapy, followed by the addition of demethylating agents for further culture. As a result, an increase in the viability of immune cells and significant antitumor effects induced by the demethylating agents were observed. Additionally, a technique for detecting the methylation patterns of Differentially Methylated Regions (DMRs) was developed to identify the T cell stage. Consequently, the reversion of immune cells to the effector stage induced by the demethylating agents was confirmed.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果により、難治性癌性腹水から得られる免疫細胞に脱メチル化剤を加えて培養することで、新規養子免疫細胞療法の基礎が得られた。また、免疫細胞がEffector stageに回帰したかを確認するためのDMR methylation pattern検出技術を開発し、脱メチル化剤が免疫細胞にエピジェネティックな変化を誘導し、NaiveからEffector Stageへの誘導、およびExhaustedからEffector Stageへの回帰が起きている可能性を示した。本研究をさらに発展させることで、難治性癌性腹水患者のみならず、すべてのがん患者への新規治療の開発が期待される。

Report

(2 results)
  • 2023 Final Research Report ( PDF )
  • 2021 Research-status Report
  • Research Products

    (8 results)

All 2022 2021

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (4 results) (of which Invited: 1 results)

  • [Journal Article] Phase 3 trial of sequential versus combination treatment in colorectal cancer: The C-cubed study2022

    • Author(s)
      Ryo Inada, Takeshi Nagasaka, Mototsugu Shimokawa, Hitoshi Ojima, Shingo Noura, Hiroaki Tanioka, Yoshinori Munemoto, Yasuhiro Shimada, Keiichiro Ishibashi, Yoshiaki Shindo, Hideyuki Mishima, Masasumi Okajima, Yoshiyuki Yamaguchi
    • Journal Title

      European Journal of Cancer

      Volume: 169 Pages: 166-178

    • DOI

      10.1016/j.ejca.2022.04.009

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Technique of vessel-skeletonized parenchyma-sparing hepatectomy for the oncological treatment of bilobar colorectal liver metastases.2022

    • Author(s)
      Umeda Y, Nagasaka T, Takagi K, Yoshida R, Yoshida K, Fuji T, Matsuda T, Yasui K, Kumano K, Sato H, Yagi T, Fujiwara T.
    • Journal Title

      Langenbecks Arch Surg.

      Volume: 407 (2) Issue: 2 Pages: 685-697

    • DOI

      10.1007/s00423-021-02373-9

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Concordance of acquired mutations between metastatic lesions and liquid biopsy in metastatic colorectal cancer.2021

    • Author(s)
      Taniguchi F, Nyuya A, Toshima T, Yasui K, Mori Y, Okawaki M, Kishimoto H, Umeda Y, Fujiwara T, Tanioka H, Yamaguchi Y, Goel A, Nagasaka T.
    • Journal Title

      Future Sci OA.

      Volume: 7 (10) Issue: 10

    • DOI

      10.2144/fsoa-2021-0059

    • NAID

      120007170517

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Clinical and epigenetic features of colorectal cancer patients with somatic POLE proofreading mutations.2021

    • Author(s)
      Kawai T, Nyuya A, Mori Y, Tanaka T, Tanioka H, Yasui K, Toshima T, Taniguchi F, Shigeyasu K, Umeda Y, Fujiwara T, Okawaki M, Yamaguchi Y, Goel A, Nagasaka T.
    • Journal Title

      Clin Epigenetics.

      Volume: 13 (1) Issue: 1 Pages: 117-117

    • DOI

      10.1186/s13148-021-01104-7

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] RAS/RAF/Microsatellite statusに間葉型を加えた新しいサブタイプによる大腸癌のPrecision Medicine2022

    • Author(s)
      矢野修也, 重安邦俊, 谷岡洋亮, 山崎泰史, 河内麻里子, 平沢晃, 武田正, 香川俊輔, 藤原俊義, 永坂岳司
    • Organizer
      第19回日本臨床腫瘍学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] MLH1 Methylation およびBRAF V600E 変異同定DNA chip によるリンチ症候群除外診断技術の確立2021

    • Author(s)
      永坂岳司
    • Organizer
      第76回日本大腸肛門病学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] 胃癌ニボルマブ投与による末梢血 PD1CD8 陽性 T リンパ球変化は効果予測となりうる2021

    • Author(s)
      谷岡洋亮, 永坂岳司, 堅田洋佑, 岡脇誠, 山村真宏, 山口佳之
    • Organizer
      第 59 回日本癌治療学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] リンチ症候群鑑別診断用DNA Chip (ジーンシリコン)の開発について2021

    • Author(s)
      永坂岳司
    • Organizer
      第42回癌免疫外科研究会
    • Related Report
      2021 Research-status Report
    • Invited

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Published: 2021-07-13   Modified: 2025-01-30  

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