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Lung resident memory Th2 cells amealiorates pulmonary cryptococcosis caused by Cryptococcus gattii

Research Project

Project/Area Number 20K07507
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 49050:Bacteriology-related
Research InstitutionNational Institute of Infectious Diseases

Principal Investigator

Ueno Keigo  国立感染症研究所, 真菌部, 主任研究官 (10550220)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords肺常在性記憶T細胞 / クリプトコックス症 / 肉芽腫 / 多核巨細胞 / Th2 / lung CD4 TRM / 肺常在性記憶Th2細胞 / 経鼻ワクチン / 肺常在性記憶型T細胞 / protective Th2 / 肺真菌症 / 好酸球 / Cryptococcus gattii / 顆粒球 / 肉芽腫形成 / ワクチン / CD11b / 抗原認識 / 免疫回避 / CD4+ TRMs
Outline of Research at the Start

申請者は、高病原性クリプトコックス症に対する予防ワクチンの開発を進めている。 これまでに、病態を顕著に改善する樹状細胞ワクチンを独自に開発し、その作用機序を解明した (Ueno et al., Infect Immun, 2015: Mucosal Immunol, 2019: Med Mycol, 2019)。 最近の解析で、次世代の新規経鼻ワクチンの開発にも成功したことから、本研究では新規経鼻ワクチンが誘導する2種類の新規免疫細胞に着目して、新規経鼻ワクチンの作用機序を解明する。

Outline of Final Research Achievements

The pathogenic fungus Cryptococcus gattii causes pulmonary cryptococcosis. In this study, we developed an intranasal vaccine against this infection. This vaccine induced lung resident memory Th2 cells =lung TRM2 and ameliorated the disease with granuloma formation. In IL-4/IL-13 double-deficient (DKO) mice, the granuloma formation and the protective effect was downregulated. The immunosuppressive agent FTY720 had no effect on this protection. Adoptive transfer of lung TRM2 rendered Rag1-deficient mice resistant to the infection. Coculture of lung TRM2 and macrophages in the presence of the antigen formed multinucleated giant cells (MGCs), while lung TRM2 from DKO mice did not induce MGCs. These MGCs phagocytosed live C. gattii cells independently of opsonization. Taken together, we concluded that the vaccine-related lung TRM2 induces granulomas via IL-4/IL-13 and suppresses C. gattii infection.

Academic Significance and Societal Importance of the Research Achievements

この研究は, 肺常在記憶Th2細胞 = lung TRM2の肺クリプトコックス症に対する防衛的役割を明らかにした. lung TRM2は好酸球を誘導するものの, 好酸球だけでは十分な感染防御効果は得られず, II型肉芽腫を誘導することでクリプトコックス症を制御した. Lung TRM2はマクロファージとの共培養で多核巨細胞を誘導した. これらの新しい知見は, クリプトコックス症ワクチンの開発において有益である.

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (17 results)

All 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (12 results) (of which Int'l Joint Research: 4 results,  Invited: 7 results)

  • [Int'l Joint Research] NIAID(米国)

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Inbred SJL mice recapitulate human resistance to <i>Cryptococcus</i> infection due to differential immune activation2023

    • Author(s)
      Davis M. J.、Martin R. E.、Pinheiro G. M.、Hoke E. S.、Moyer S.、Ueno K.、Rodriguez-Gil J. L.、Mallett M. A.、Khillan J. S.、Pavan W. J.、Chang Y. C.、Kwon-Chung K. J.
    • Journal Title

      mBio

      Volume: 14 Issue: 5

    • DOI

      10.1128/mbio.02123-23

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Detrimental impact of the IL-33/ST2 axis in an animal infection model with <i>Cryptococcus neoformans</i>2023

    • Author(s)
      Ueno Keigo、Miyazaki Yoshitsugu
    • Journal Title

      Allergology International

      Volume: 72 Issue: 4 Pages: 530-536

    • DOI

      10.1016/j.alit.2023.07.002

    • ISSN
      1323-8930, 1440-1592
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Promising whole‐cell vaccines against cryptococcosis2023

    • Author(s)
      Ueno Keigo、Tsuge Soichiro、Shimizu Kiminori、Miyazaki Yoshitsugu
    • Journal Title

      Microbiology and Immunology

      Volume: 67 Issue: 5 Pages: 211-223

    • DOI

      10.1111/1348-0421.13056

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Cryptococcus gattii evades CD11b‐mediated fungal recognition by coating itself with capsular polysaccharides2021

    • Author(s)
      Ueno Keigo、Otani Yoshiko、Yanagihara Nao、Urai Makoto、Nagamori Akiko、Sato‐Fukushima Miyuki、Shimizu Kiminori、Saito Noriko、Miyazaki Yoshitsugu
    • Journal Title

      European Journal of Immunology

      Volume: x Issue: 9 Pages: 2281-2295

    • DOI

      10.1002/eji.202049042

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Lung resident memory Th2 cells induce multinucleated giant cells that can engulf live cryptococcal cells without opsonization2024

    • Author(s)
      Keigo Ueno, Yoshitsugu Miyazaki
    • Organizer
      The 10th Global Network Forum on Infection and Immunity
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高病原性クリプトコックスに対する肺常在性記憶Th2細胞は多核巨細胞を誘導する2023

    • Author(s)
      上野 圭吾, 宮﨑 義継
    • Organizer
      第96回 日本生化学会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 肺常在性記憶Th2細胞 lung TRM2の<i>Cryptococcus gattii</i>に対する感染制御機構2023

    • Author(s)
      上野 圭吾, 宮﨑 義継
    • Organizer
      第67回 日本医真菌学会総会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Vaccine-inducing lung resident memory Th2 cells protect against lethal pulmonary cryptococcosis2023

    • Author(s)
      Keigo Ueno, Yoshitsugu Miyazaki
    • Organizer
      The 21st Awaji International Forum on Infection and Immunity
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Two intranasal vaccines against Cryptococcus gattii induce protective lung resident memory Th2 cells2023

    • Author(s)
      Keigo Ueno , Yoshitsugu Miyazaki
    • Organizer
      The 9th Global Network Forum on Infection and Immunity
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Vaccine-inducing lung resident CD4+ memory T cells are protective against Cryptococcus gattii infections.2022

    • Author(s)
      Keigo Ueno , Kiminori Shimizu , Yun Chang , June Kwon-Chung , Yoshitsugu Miyazaki
    • Organizer
      21st Congress of the International Society for Human and Animal Mycology (ISHAM)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 高病原性クリプトコックス症に対する獲得免疫とワクチンの研究: 米国NIHへの留学を経験して2022

    • Author(s)
      上野 圭吾, 宮﨑 義継
    • Organizer
      第95回 日本細菌学会総会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] クリプトコックス症に対するワクチンの基盤研究: 感染制御に寄与する獲得免疫の新知見2021

    • Author(s)
      上野 圭吾, 宮﨑 義継
    • Organizer
      第65回日本医真菌学会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Cryptococcus gattiiは莢膜による抗原被覆作用でCD11bによる菌体認識を回避する2021

    • Author(s)
      上野 圭吾, 清水 公徳, 山越 智, 宮﨑 義継
    • Organizer
      第65回日本医真菌学会
    • Related Report
      2021 Research-status Report
  • [Presentation] クリプトコックス症ワクチンの基盤研究から見えてきた肺常在性記憶型T細胞の重要性2021

    • Author(s)
      上野 圭吾, 宮﨑 義継
    • Organizer
      第70回 日本感染症学会東日本地方会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 高病原性クリプトコックス症に対するワクチン開発とその生体防御機構について2020

    • Author(s)
      上野 圭吾, 宮﨑 義継
    • Organizer
      第64回 日本医真菌学会総会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 肺常在性記憶型T細胞による高病原性クリプトコックス症の制御2020

    • Author(s)
      上野 圭吾, 山越 智, 宮﨑 義継
    • Organizer
      第94回 日本感染症学会総会
    • Related Report
      2020 Research-status Report
    • Invited

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Published: 2020-04-28   Modified: 2025-01-30  

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