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Elucidation of the acquisition of anti-tumor immunity by novel STING interacting proteins in cancer

Research Project

Project/Area Number 18K07191
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 50010:Tumor biology-related
Research InstitutionHokkaido University

Principal Investigator

Sato Seiichi  北海道大学, 遺伝子病制御研究所, 講師 (60459724)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords自然免疫応答 / STING / インターフェロン / 腫瘍 / がん細胞 / 腫瘍抑制 / 核酸 / パターン認識受容体 / 抗腫瘍応答 / IFN / シャペロンタンパク質 / Hsp90 / タンパク質安定化 / シグナル伝達 / サイトカイン / 腫瘍免疫 / tumor suppressor / 小胞体 / アダプタータンパク質 / がん / 抗原提示機構 / ウイルス感染
Outline of Final Research Achievements

Based on the previous study elucidating the signaling pathways of properties of cancer and innate immune response, we hypothesize whether our previous effort can extend in tumor therapy. It is unknown how cancer cells acquire anti-tumor immunity. In this study, we identified some STING interacting proteins, we demonstrated that STING is a client protein of Hsp90beta, in particular stabilization of STING protein is crucial for efficient innate immune response, and ANT2 is a negative regulator of STING pathway.

Academic Significance and Societal Importance of the Research Achievements

臨床においては腫瘍が見つかった場合はすでに免疫細胞からの攻撃回避が成立した状態になっているが、がん細胞がどのようにして、免疫細胞からの攻撃を回避しているか、そのメカニズムは十分に分かっていない。どのようにがん細胞は腫瘍免疫を抑制しているのか?――この問題に対する1つの答えの手がかりとして、代表者らはSTINGと新規会合するタンパク質を同定した。この分子は、がん細胞で発現が更新し、STINGを抑制し、抗腫瘍免疫に寄与していることが明らかになった。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (3 results)

All 2020 2019

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

  • [Journal Article] Regulation of an adaptor protein STING by Hsp90β to enhance innate immune responses against microbial infections2020

    • Author(s)
      Seiichi Sato, Kai Li, Nozomi Sakurai, Mei Hashizume, Sunanda Baidya, Hirotaka Nonaka, Koki Noguchi, Kozo Ishikawa, Chikashi Obuse, Akinori Takaoka
    • Journal Title

      Cellular Immunology

      Volume: 356 Pages: 104188-104188

    • DOI

      10.1016/j.cellimm.2020.104188

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] MicroRNA-30e-5p has an integrated role in the regulation of the innate immune response during virus infection and systemic lupus erythematosus2020

    • Author(s)
      Mishra R, Bhattacharya S, Rawat BS, Kumar A, Kumar A, Niraj K, Chande A, Gandhi P, Khetan D, Aggarwal A, Sato S, Tailor P, Takaoka A, Kumar H
    • Journal Title

      iSCIENCE

      Volume: 23 Issue: 7 Pages: 101322-101322

    • DOI

      10.1016/j.isci.2020.101322

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Genotoxicなストレスに対する自然免疫応答に対する新規抑制因子の同定2019

    • Author(s)
      佐藤精一、高岡晃教
    • Organizer
      第84回日本インターフェロンサイトカイン学会学術集会
    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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