• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Analysis of rRNA methylation in tumor immune system though PD-1

Research Project

Project/Area Number 17K07164
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Tumor biology
Research InstitutionKyoto University

Principal Investigator

Waku Yuka  京都大学, 医学研究科, 研究員 (40399499)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
KeywordsrRNA / 塩基メチル化 / 腫瘍免疫 / PD-1
Outline of Final Research Achievements

In this study, I performed FACS analysis using specific antibodies and found that the positive cells of N1-methyladenosime (m1A) was increased in highly differentiated CD8+ T-cell subsets which expressed m1A methyltransferase NML. Moreover, the percentage of m1A positive CD8+ T-cells in young mice was increased by PD-1 blockade therapy. On the other hand, the induction in aged mice, that could not reject tumors, was not induced by PD-1 blockade. These results suggest that m1A RNA modification is involved in the activation of CD8+ T-cells through PD-1 blockade.

Academic Significance and Societal Importance of the Research Achievements

これまでにタンパク質合成制御を調節するための修飾として考えられてきたrRNAのメチル化が、腫瘍免疫機能を制御するという全く新しい機能の解明を推し進め普遍性を追求する本研究は、RNA修飾分野のみならず免疫の分野において、パラダイムシフトを引き起こすものと考える。また、本研究により得られたPD-1経路阻害に対する不応答性がんの問題の克服に繋がる成果は、新しいがん免疫療法の開発に繋がるのみならず、PD-1阻害治療の有効性を判断するためのバイオマーカー開発にも繋がると予想される。治療前に不応答患者かどうかを判定出来れば、抗体治療という高額医療費の削減にも繋がり得ると考えられる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (5 results)

All 2019 2018 2017

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (1 results) Book (3 results)

  • [Journal Article] Nucleomethylin deficiency impairs embryonic erythropoiesis2018

    • Author(s)
      Murakami Shohei、Suzuki Takuma、Yokoyama Wataru、Yagi Satoko、Matsumura Keita、Nakajima Yuka、Harigae Hideo、Fukamizu Akiyoshi、Motohashi Hozumi
    • Journal Title

      J. Biochem.

      Volume: 印刷中 Issue: 5 Pages: 413-423

    • DOI

      10.1093/jb/mvx086

    • NAID

      40021555326

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Age-related resistance to PD-1 blockade therapy through reduction of a specific CD8+ T-cell subpopulation2019

    • Author(s)
      Yuka Nakajima, Kenji Chamoto, Tasuku Honjo
    • Organizer
      第78回日本癌学会
    • Related Report
      2019 Annual Research Report
  • [Book] Trends in Cancer Immunology2019

    • Author(s)
      仲島由佳、茶本健司、河上裕
    • Total Pages
      4
    • Publisher
      メディカルビュー社
    • Related Report
      2019 Annual Research Report
  • [Book] がん分子標的治療 分子標的薬の新しいバイオマーカー2018

    • Author(s)
      仲島由佳、茶本健司
    • Total Pages
      4
    • Publisher
      メディカルレビュー社
    • Related Report
      2018 Research-status Report
  • [Book] THE LUNG perspectives 特集:免疫学の新展開と呼吸器疾患2017

    • Author(s)
      仲島由佳、波多江龍亮、茶本健司
    • Total Pages
      5
    • Publisher
      メディカルビュー社
    • Related Report
      2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2023-12-25  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi