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Impact of non-coding RNA pathways in radiation-induced immune response

Research Project

Project/Area Number 21K07582
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionNational Cancer Center Japan

Principal Investigator

Kageyama Shun-Ichiro  国立研究開発法人国立がん研究センター, 東病院, 医員 (60644979)

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: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords肺非小細胞癌 / がん免疫応答 / RNA sensor pathway / 1細胞解析 / 食道癌 / RIG-I / RNA virus sensor / ISRE / 放射線治療 / Radiotherpy / Type I IFN / Non-coding RNA / Viral Reaction
Outline of Research at the Start

本研究の目的はこれまでほとんど注目されてこなかった放射線照射によって誘導されるRNA sensor pathwayの解明である。既にこれまでの我々の研究でRNA sensor 遺伝子であるRIG-I遺伝子の欠損が放射線誘導免疫応答を大きく低下させることが明らかになっている。
今後はRNA sensorのリガンドの同定や、RIG-I-MAVS以下のシグナル解析を行い、放射線照射からMHC class遺伝子やPD-L1等のkey遺伝子の発現までのメカニズムを遺伝子レベルで明らかにする。

Outline of Final Research Achievements

In this study, we investigated the mechanisms of radiation-induced immune responses using the non-small cell lung cancer cell line A549. Our results revealed that radiation exposure activates transposons, which in turn induce an interferon response via the RIG-I pathway, thereby triggering an immune response. Additionally, scRNA-seq analysis of esophageal cancer tissues during radiation therapy showed that these RNA sensor-dependent immune responses are also activated within the cancer tissues, confirming their involvement in the immune response.

Academic Significance and Societal Importance of the Research Achievements

放射線治療、免疫チェックポイント阻害薬等の免疫治療は多くのがん種で適応になる治療であり、放射線治療と免疫チェックポイントを併用する治療も大きく期待されている治療であるため、放射線治療による免疫応答を理解し、最適な併用免疫治療を確立することは重要である。今回この放射線誘導免疫応答は少なくとも肺非小細胞癌、食道扁平上皮癌ではRNA sensor RIG-I依存的に誘導され、放射線によるトランスポゾンの活性化を介して誘導されることを明らかにした。本研究成果は放射線生物学的に重要な発見であり、より最適な免疫治療併用放射線治療の確立やバイオマーカー確立につながる知見である。

Report

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

    (8 results)

All 2023 2022 2021

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

  • [Journal Article] Transposable elements potentiate radiotherapy-induced cellular immune reactions via RIG-I-mediated virus-sensing pathways2023

    • Author(s)
      Junyan Du, Shun-Ichiro Kageyama
    • Journal Title

      Communications Biology

      Volume: 6 Issue: 1 Pages: 818-818

    • DOI

      10.1038/s42003-023-05080-x

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comprehensive single-cell analysis demonstrates radiotherapy-induced infiltration of macrophages expressing immunosuppressive genes into tumor in esophageal squamous cell carcinoma2023

    • Author(s)
      Oyoshi H, Du J, Sakai SA, Yamashita R, Okumura M, Motegi A, Hojo H, Nakamura M, Hirata H, Sunakawa H, Kotani D, Yano T, Kojima T, Nakamura Y, Kojima M, Suzuki A, Zenkoh J, Tsuchihara K, Akimoto T, Shibata A, Suzuki Y, Kageyama S. Shun-Ichiro
    • Journal Title

      Science Advances

      Volume: 9 Issue: 50 Pages: 9096-9096

    • DOI

      10.1126/sciadv.adh9069

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Impacts of the STING‐IFNAR1‐STAT1‐IRF1 pathway on the cellular immune reaction induced by fractionated irradiation2022

    • Author(s)
      Du Junyan、Kageyama Shun‐Ichiro、Yamashita Riu、Hirata Hidenari、Hakozaki Yumi、Okumura Masayuki、Motegi Atsushi、Hojo Hidehiro、Nakamura Masaki、Hirano Yasuhiro、Sunakawa Hironori、Minamide Tatsunori、Kotani Daisuke、Tanaka Kosuke、Yano Tomonori、Kojima Takashi、Ohashi Akihiro、Tsuchihara Katsuya、Akimoto Tetsuo
    • Journal Title

      Cancer Science

      Volume: 113 Issue: 4 Pages: 1352-1361

    • DOI

      10.1111/cas.15297

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comprehensive screening for drugs that modify radiation-induced immune responses2022

    • Author(s)
      M. Okumura, J. Du, S.I. Kageyama*, R. Yamashita, Y. Hakozaki, A. Motegi, H. Hojo, M. Nakamura, Y. Hirano, Y. Okuma, H. Okuma, K. Tsuchihara, and T. Akimoto
    • Journal Title

      British journal of Cancer

      Volume: - Issue: 12 Pages: 1815-1823

    • DOI

      10.1038/s41416-021-01688-0

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparative analysis of the immune responses in cancer cells irradiated with X-ray, proton and carbon-ion beams2021

    • Author(s)
      Du Junyan、Kageyama Shun-Ichiro、Hirata Hidenari、Motegi Atsushi、Nakamura Masaki、Hirano Yasuhiro、Okumura Masayuki、Yamashita Riu、Tsuchihara Katsuya、Hojo Hidehiro、Hirayama Ryoichi、Akimoto Tetsuo
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 585 Pages: 55-60

    • DOI

      10.1016/j.bbrc.2021.11.004

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 1細胞解析を用いた放射線治療による食道癌患者組織での免疫学的変化の経時的解析2023

    • Author(s)
      大吉秀和
    • Organizer
      放射線腫瘍学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 時空間解析による放射線治療による食道がん患者組織での免 疫環境変化の解析2023

    • Author(s)
      大吉秀和
    • Organizer
      日本がん治療学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 1 細胞解析を用いた放射線治療による食道癌患者組織での免疫学的変 化の経時的解析2023

    • Author(s)
      大吉秀和
    • Organizer
      日本癌学会
    • Related Report
      2023 Annual Research Report

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

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