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mRNA metabolism specific to ILC subsets

Research Project

Project/Area Number 21H02707
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 49030:Experimental pathology-related
Research InstitutionAkita University

Principal Investigator

Ebihara Takashi  秋田大学, 医学系研究科, 教授 (20374407)

Co-Investigator(Kenkyū-buntansha) 久場 敬司  秋田大学, 医学系研究科, 非常勤講師 (10451915)
立松 恵  秋田大学, 医学系研究科, 助教 (70725605)
高須賀 俊輔  秋田大学, 医学系研究科, 助教 (90375262)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2023: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2022: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2021: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Keywords自然リンパ球 / 転写後制御 / NK細胞 / ILC1 / ILC2 / ILC3 / mRNA代謝 / 転写後調節
Outline of Research at the Start

自然リンパ球(ILC: Innate lymphoid cell)は、初期の免疫応答を担う重要な細胞であり、ヘルパーサイトカイン産生を担うヘルパー自然リンパ球(ILC1、ILC2、ILC3)と細胞障害活性をもつナチュラルキラー細胞(NK細胞)に分類される。ILC1やNK細胞は抗腫瘍免疫や抗ウイルス免疫を、ILC2はアレルギー炎症や抗寄生虫免疫を、ILC3は病原性大腸菌等の細胞外病原体に対する免疫を、それぞれ誘導する。本研究では、全てのILCにおけるmRNA代謝機能の役割を、多角的な生理条件下で網羅的に検討し、その分子メカニズムを明らかにすることを目的とする。

Outline of Final Research Achievements

Innate lymphoid cells (ILCs) are crucial for the early immune response and are classified into three groups: T-bet-dependent group 1 (NK cells, ILC1), GATA-3-dependnet group 2 (ILC2), and RORgt-dependent group 3 (ILC3). CNOT3 is a core unit of the CCR4-NOT complex, playing a central role in poly(A) deadenylation. When CNOT3 deficiency was induced in ILCs, the expression of T-bet and RORγt increased in ILC2. Additionally, the mRNA of T-bet and RORγt was degraded in a CNOT3-dependent manner. Thus, CNOT3 is an important molecule for maintaining the ILC2 integrity.

Academic Significance and Societal Importance of the Research Achievements

自然リンパ球は、抗原非特異的に免疫の方向性を決める免疫細胞であり、しばしば免疫体質を決定する細胞と呼ばれる。本研究は自然リンパ球の転写後調節に着目することにより、自然リンパ球の新しい分化・機能制御機構を発見するに至った。自然リンパ球を介した免疫体質のコントロールを目指す上で大事な知見であり、今後新しい治療戦略を生み出す可能性がある。

Report

(3 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (25 results)

All 2023 2022 2021 Other

All Int'l Joint Research (7 results) Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (11 results) (of which Int'l Joint Research: 1 results,  Invited: 4 results) Book (1 results) Remarks (1 results)

  • [Int'l Joint Research] Institut Pasteur(フランス)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] German Cancer Research Center/Hannover Medical School(ドイツ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Veterinary University of Vienna(オーストリア)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Cornell University/Washington University in St. Louis(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Institut Pasteur(フランス)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] German Cancer Research Center(ドイツ)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Veterinary University of Vienna(オーストリア)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Quantification of Aspergillus fumigatus antigen Asp f 1 in airway tissue and allergic inflammation2022

    • Author(s)
      Miyabe Yui、Tomizawa Hiroki、Saito Hidekazu、Yamada Toshiki、Shiina Kazuhiro、Koizumi Koh、Kawasaki Yohei、Suzuki Shinsuke、Fukuchi Mineyo、Ueki Shigeharu、Ebihara Takashi、Yamada Takechiyo
    • Journal Title

      Allergy

      Volume: 77 Issue: 10 Pages: 3154-3156

    • DOI

      10.1111/all.15428

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Identification of Galectin-7 as a crucial metastatic enhancer of squamous cell carcinoma associated with immunosuppression2022

    • Author(s)
      An Jianbo、Nagaki Yushi、Motoyama Satoru、Kuze Yuta、Hoshizaki Midori、Kemuriyama Kohei、Yamaguchi Tomokazu、Ebihara Takashi、Minamiya Yoshihiro、Suzuki Yutaka、Imai Yumiko、Kuba Keiji
    • Journal Title

      Oncogene

      Volume: 41 Issue: 50 Pages: 5319-5330

    • DOI

      10.1038/s41388-022-02525-1

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 抗原受容体をもたないリンパ球 NK細胞2022

    • Author(s)
      海老原敬
    • Journal Title

      臨床検査

      Volume: 66 Pages: 582-587

    • Related Report
      2022 Annual Research Report
  • [Journal Article] 2型自然リンパ球の訓練免疫2022

    • Author(s)
      海老原敬, 立松恵, 高須賀俊輔, 山田俊樹, 山田武千代
    • Journal Title

      【COPDと気管支喘息、その周辺疾患-病態・診断・治療の最新動向-】喘息病態up-to-date

      Volume: 80 Pages: 586-590

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Trained innate lymphoid cells in allergic diseases2021

    • Author(s)
      Ebihara T, Tatematsu M, Fuchimukai A, Yamada T, Yamagata K, Takasuga S, Yamada T
    • Journal Title

      Allergology International

      Volume: 70 Issue: 2 Pages: 174-180

    • DOI

      10.1016/j.alit.2020.11.007

    • NAID

      130008024334

    • ISSN
      1323-8930, 1440-1592
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Activation-induced cell death of ILC2 regulates chronic allergic inflammation2022

    • Author(s)
      Toshiki Yamada, Megumi Tatematsu, Shunsuke Takasuga, Kenki Yamagata, Kazuko Shibuya, Akira Shibuya, Takechiyo Yamada, Takashi Ebihara.
    • Organizer
      4TH INTERNATIONAL CONFERENCE ON INNATE LYMPHOID CELLS (ILC4)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Caloric restriction induces cellular quiescence in hepatic ILC1s2022

    • Author(s)
      Megumi Tatematsu, Akane Fuchimukai, Tsukasa Nabekura, Akira Shibuya, and Takashi Ebihara.
    • Organizer
      The 51th Annual Meeting of the Japanese Society for Immunology
    • Related Report
      2022 Annual Research Report
  • [Presentation] TIGIT mediates activation-induced cell death of ILC2s2022

    • Author(s)
      Toshiki Yamada, Akane Fuchimukai, Megumi Tatematsu, Shunsuke Takasuga, Hideyuki Yoshida, Kazuko Shibuya, Akira Shibuya, Takashi Ebihara.
    • Organizer
      The 51th Annual Meeting of the Japanese Society for Immunology
    • Related Report
      2022 Annual Research Report
  • [Presentation] 自然リンパ球の多様性と運命決定機構2022

    • Author(s)
      海老原敬
    • Organizer
      第74回 日本細菌学会東北支部会 学術集会・総会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 低栄養状態により誘導されるILC1 Quiescence2022

    • Author(s)
      立松恵、渕向茜、海老原敬
    • Organizer
      第74回 日本細菌学会東北支部会 学術集会・総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 2型自然リンパ球の多様性とアレルギー疾患2022

    • Author(s)
      海老原敬
    • Organizer
      第3回秋田アレルギー疾患フォーラム
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 自然リンパ球の多様性と疾患2022

    • Author(s)
      海老原敬
    • Organizer
      第86回秋田県医学会総会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 自然リンパ球の多様性と小児疾患2022

    • Author(s)
      海老原敬
    • Organizer
      第121回日本小児科学会秋田地方会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] The Ccr4-Not deadenylase complex controls antitumor NK cell activity.2021

    • Author(s)
      Tatematsu M, Sawa S, Ikuta K, Ebihara T.
    • Organizer
      第50回日本免疫学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Activation-induced cell death of ILC2s confers protection against chronic allergic inflammation.2021

    • Author(s)
      Yamada T, Tatematsu M, Ebihara T.
    • Organizer
      第50回日本免疫学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 肝特異的ホスファチジルグリセロールリン酸ホスファターゼ遺伝子欠損によるラロン型低身長症様疾患モデルマウス2021

    • Author(s)
      高須賀俊輔、海老原敬、佐々木雄彦
    • Organizer
      第94回日本生化学会大会
    • Related Report
      2021 Annual Research Report
  • [Book] 標準微生物学 第14版 第3版 第30章 ウイルスの病原性2023

    • Author(s)
      海老原敬
    • Total Pages
      11
    • Publisher
      医学書院
    • ISBN
      9784260043311
    • Related Report
      2022 Annual Research Report
  • [Remarks] 微生物学講座所属 山田 俊樹 医員が自然リンパ球の国際学会において、Travel Awardsを受賞

    • URL

      https://www.med.akita-u.ac.jp/topics/20221220.php

    • Related Report
      2022 Annual Research Report

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

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