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Regulation of pathogenic lymphocyte function and asthma induction mechanism via lipid metabolism

Research Project

Project/Area Number 21K20766
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0803:Pathology, infection/immunology, and related fields
Research InstitutionKazusa DNA Research Institute

Principal Investigator

Nakajima Takahiro  公益財団法人かずさDNA研究所, 先端研究開発部, 特任研究員 (90910943)

Project Period (FY) 2021-08-30 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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)
KeywordsT細胞 / 脂質代謝 / 気管支喘息 / 病原性T細胞 / 解糖系 / IL-5 / 好酸球 / ACC1 / 免疫 / アレルギー / IL-3 / 2型自然リンパ球 / Th2 / 喘息
Outline of Research at the Start

本研究では喘息での肺における病原性Th2細胞(Tpath2)および2型自然リンパ球(ILC2)の脂質代謝にフォーカスする。また、これら病原性細胞集団をコントロールする脂質代謝経路・代謝産物を同定し、「脂質代謝でぜんそくを制御する」ことを最終目標とする。
研究期間中には以下に示す2つの研究項目を実施する。
①細胞特異的ACC1欠損マウスを用いた喘息病態への影響検証
②喘息肺の脂質プロファイル変化とTpath2/ILC2をコントロールする脂質代謝物の同定

Outline of Final Research Achievements

We studied the lipid metabolism mechanisms and immune functions specific to pathogenic cells that induce asthma, including pathogenic Th2 (Tpath2) cells and type 2 innate lymphocytes (ILC2), and revealed two new findings as follows.
1. Regulation mechanism of IL-5 production by de novo fatty acid synthesis in Tpath2 cells: Acetyl-CoA carboxylase 1 (ACC1)-dependent de novo fatty acid synthesis and sufficient activation of the glycolysis are both required for IL-5 production in Tpath2 cells.
2. Suppression of asthmatic pathology in T cell-specific ACC1-deficient mice: T cell specific ACC1 deficient mice showed a decrease in Tpath2-derived IL-5 and eosinophils in alveolar lavage fluid, and attenuated lung inflammation.

Academic Significance and Societal Importance of the Research Achievements

本研究では喘息病態を誘導するのに重要な働きを担うTpath2細胞およびILC2のIL-5産生機能が脂質代謝によって制御されていることを明らかにした。IL-5は好酸球性肺炎症を誘導する重要なサイトカインであり、現在臨床では抗IL-5抗体を用いた治療が行われているが、IL-5を産生する細胞を標的とした治療は広範的な免疫抑制を誘導する薬剤以外はほとんど存在しないため、新たな治療の選択肢につながる非常に重要な発見であると考える。また今回の研究手法を応用することで様々な免疫細胞の脂質代謝による機能制御の解明につなげることが可能で、脂質代謝をターゲットとした自己免疫疾患やがん治療への応用が期待できる。

Report

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

    (9 results)

All 2023 2022 2021

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 6 results) Presentation (3 results)

  • [Journal Article] Lipid metabolism in Th17 cell function2023

    • Author(s)
      Kanno Toshio、Nakajima Takahiro、Miyako Keisuke、Endo Yusuke
    • Journal Title

      Pharmacology & Therapeutics

      Volume: 245 Pages: 108411-108411

    • DOI

      10.1016/j.pharmthera.2023.108411

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fatty acid metabolism in T-cell function and differentiation2022

    • Author(s)
      Endo Y., Kanno T., and Nakajima T
    • Journal Title

      International Immunol.

      Volume: 34 Issue: 11 Pages: 579-579

    • DOI

      10.1093/intimm/dxac025

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] SCD2-mediated cooperative activation of IRF3-IRF9 regulatory circuit controls type I interferon transcriptome in CD4+ T cells2022

    • Author(s)
      Kanno Toshio、Miyako Keisuke、Nakajima Takahiro、Yokoyama Satoru、Sasamoto Shigemi、Asou Hikari K.、Ohara Osamu、Nakayama Toshinori、Endo Yusuke
    • Journal Title

      Frontiers in Immunology

      Volume: 13 Pages: 904875-904875

    • DOI

      10.3389/fimmu.2022.904875

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characterization of proteogenomic signatures of differentiation of CD4+ T cell subsets2022

    • Author(s)
      Kanno T., Konno R., Miyako K, Nakajima T., Yokoyama S., Sasamoto S., Asou HK., Ohzeki J., Kawashima Y., Hasegawa Y., Ohara O., and Endo Y
    • Journal Title

      DNA Res.

      Volume: 30 Issue: 1 Pages: 1-1

    • DOI

      10.1093/dnares/dsac054

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] ACC1-expressing pathogenic T helper 2 cell populations facilitate lung and skin inflammation in mice2021

    • Author(s)
      Nakajima Takahiro、Kanno Toshio、Yokoyama Satoru、Sasamoto Shigemi、Asou Hikari K.、Tumes Damon J.、Ohara Osamu、Nakayama Toshinori、Endo Yusuke
    • Journal Title

      Journal of Experimental Medicine

      Volume: 218(12) Issue: 12

    • DOI

      10.1084/jem.20210639

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Acsbg1-dependent mitochondrial fitness is a metabolic checkpoint for tissue Treg cell homeostasis2021

    • Author(s)
      Kanno Toshio、Nakajima Takahiro、Kawashima Yusuke、Yokoyama Satoru、Asou Hikari K.、Sasamoto Shigemi、Hayashizaki Koji、Kinjo Yuki、Ohara Osamu、Nakayama Toshinori、Endo Yusuke
    • Journal Title

      Cell Reports

      Volume: 37(6) Issue: 6 Pages: 109921-109921

    • DOI

      10.1016/j.celrep.2021.109921

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Inhibition of ACC1-dependent de novo fatty acid biosynthesis augments Th9 cell differentiation and anti-tumor activity2022

    • Author(s)
      Takahiro Nakajima, Toshio Kanno, Yusuke Endo
    • Organizer
      The 51st Annual Meeting of the Japanese Society for Immunology
    • Related Report
      2022 Annual Research Report
  • [Presentation] De novo脂肪酸合成による病原性T細胞の機能制御機構2022

    • Author(s)
      中嶋隆裕
    • Organizer
      第30回東京免疫フォーラム
    • Related Report
      2021 Research-status Report
  • [Presentation] ACC1-expressing pathogenic T helper 2 cell populations facilitate lung and skin inflammation2021

    • Author(s)
      Takahiro Nakajima, Toshio Kanno, Toshinori Nakayama, Yusuke Endo
    • Organizer
      The 50th Annual Meeting of the Japanese Society for Immunology
    • Related Report
      2021 Research-status Report

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Published: 2021-10-22   Modified: 2024-01-30  

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