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Characterization of memory T cells generated by mucosal vaccinations in teleost fish.

Research Project

Project/Area Number 20H03075
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 40040:Aquatic life science-related
Research InstitutionKyushu University

Principal Investigator

Somamoto Tomonori  九州大学, 農学研究院, 准教授 (40403993)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2023: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2020: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Keywords粘膜免疫 / ギンブナ / γδ型T細胞 / αβ型T細胞 / ウイルス / B細胞 / ワクチン / 抗体産生応答 / 腸管免疫 / 粘膜ワクチン / 粘膜関連リンパ組織 / IgM抗体 / IgT抗体 / T細胞 / 腸管粘膜リンパ組織 / 記憶T細胞 / 経肛門挿管法 / Immunoglobulin T (IgT) / 記憶T細胞
Outline of Research at the Start

全身粘膜組織で覆われている魚類にとって、粘膜ワクチンは長期免疫記憶を付与することが可能な有望なワクチンとして期待されている。本研究は、粘膜抗原投与法によって生成される魚類の記憶T細胞の誘導機構を明らかにする。先ず、エラ、体表、腸管や鼻腔に存在する魚類の代表的な粘膜関連リンパ組織に抗原を直接投与し、その後の抗原特異的な免疫応答を明らかにする。次にクローンギンブナを用いて生体内の移植細胞を追跡することで、魚類の循環型、常在型のT細胞を同定しその動態を調査する。これらの研究により、魚類の粘膜ワクチンの有効性および粘膜免疫系における記憶T細胞の機能解明が期待される。

Outline of Final Research Achievements

The present study demonstrated that adaptive immune responses of T- and B-cells induced by direct antigen administration to mucosal lymphoid tissues such as gills, skin, intestine, and nasal cavity of teleost fish. The anal intubation method, in which antigen was administered directly to the intestine, can confer strongest antigen-specific antibody responses more rapidly and for a longer period of time than the injection method, which the main method of vaccine administration in cultured fish. In addition, CD8- and CD4-positive T cells are more abundant in the mucosal tissues of fish than cells of the innate immune system, such as granulocytes and macrophages, suggesting that T cells play an important role in mucosal tissue where are the site for pathogen invasion.

Academic Significance and Societal Importance of the Research Achievements

水産養殖において感染症による被害は甚大であり、ワクチンは最も効果的な感染症予防法だと考えられている。本研究では、魚の免疫機構の特徴を活かしたワクチンの開発を目的に粘膜組織への抗原投与による獲得免疫誘導機構を調査した。その結果、腸管に直接抗原する経肛門挿管法は、養殖魚の主なワクチン投与法である注射法よりも、強力な獲得免疫を誘導することが可能であることを明らかにした。この成果は、今後、魚類の腸管免疫の活性化に着目した粘膜ワクチンの開発に貢献するものと期待される。

Report

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

    (19 results)

All 2023 2022 2021 2020

All Journal Article (6 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (13 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

  • [Journal Article] Non-specific cytotoxic cell receptor protein-1 (NCCRP-1) is involved in anti-parasite innate CD8+ T cell-mediated cytotoxicity in ginbuna crucian carp.2023

    • Author(s)
      Sukeda M, Prakash H, Nagasawa T, Nakao M, Somamoto T.
    • Journal Title

      Fish & Shellfish Immunology

      Volume: 139 Pages: 108904-108904

    • DOI

      10.1016/j.fsi.2023.108904

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Local immune responses to two stages of Ichthiophthirius multifiliis in ginbuna crucian carp2021

    • Author(s)
      Shiota K, Sukeda M, Prakash H, Kondo M, Nakanishi T, Nagasawa T, Nakao M, Somamoto T
    • Journal Title

      Fish & Shellfish Immunology

      Volume: 118 Pages: 19-24

    • DOI

      10.1016/j.fsi.2021.08.013

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Innate cell-mediated cytotoxicity of CD8+ T cells against the protozoan parasite Ichthyophthirius multifiliis in the ginbuna crucian carp, Carassius auratus langsdorfii.2021

    • Author(s)
      Sukeda M, Shiota K, Kondo M, Nagasawa T, Nakao M, Somamoto T
    • Journal Title

      Developmental and Comparative Immunology

      Volume: 115 Pages: 103886-103886

    • DOI

      10.1016/j.dci.2020.103886

    • NAID

      120007188795

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mucosal delivery of fish vaccines: Local and systemic immunity following mucosal immunisations.2020

    • Author(s)
      Somamoto T., Nakanishi T.
    • Journal Title

      Fish & Shellfish Immunology

      Volume: 99 Pages: 199-207

    • DOI

      10.1016/j.fsi.2020.01.005

    • NAID

      120007001038

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Expression profile of kalliklectin, a soluble-type mannose receptor, during embryogenesis and early larval development in fugu (Takifugu rubripes)2020

    • Author(s)
      Shintaro Matsui, Sota Yoshikawa, Shigenori Suzuki, Tomonori Somamoto, Atsushi Yamamoto, Osamu Nakamura, Shigeyuki Tsutsui
    • Journal Title

      Molecular Immunology

      Volume: 126 Pages: 129-135

    • DOI

      10.1016/j.molimm.2020.07.022

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 魚類の粘膜を介したワクチン投与法2020

    • Author(s)
      杣本智軌
    • Journal Title

      アクアネット

      Volume: 7 Pages: 54-57

    • Related Report
      2020 Annual Research Report
  • [Presentation] Characterization of CD83 isotypes expressed on monocyte-macrophage lineage in ginbuna crucian carp2023

    • Author(s)
      Tran Thu Trang, Takahiro Nagasawa, Miki Nakao, Tomonori Somamoto
    • Organizer
      16th Congress of the International Society for Developmental and Comparative Immunology (ISDCI)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ギンブナ後腸部に存在する嚢状組織のリンパ組織としての特性2023

    • Author(s)
      浅沼 里利香 、長澤 貴宏、中尾 実樹、杣本 智軌
    • Organizer
      第34回日本比較免疫学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Expression of CD83 isotypes during the differentiation of monocyte-macrophage lineage in ginbuna crucian carp2023

    • Author(s)
      Tran Thu Trang, Takahiro Nagasawa, Miki Nakao, Tomonori Somamoto
    • Organizer
      第34回日本比較免疫学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 硬骨魚類の病原体に対する細胞性免疫機構2023

    • Author(s)
      杣本智軌
    • Organizer
      令和5年度日本水産学会九州支部大会・ミニシンポジウム
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 魚類の病原体に対する細胞性免疫に関する研究2023

    • Author(s)
      杣本 智軌
    • Organizer
      日本魚病学会春季大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Differential expression of two CD83 isotypes in monocyte-macrophage lineage in ginbuna crucian carp2023

    • Author(s)
      Thu Trang Tran, Takahiro Nagasawa, Miki Nakao, Tomonori Somamoto
    • Organizer
      日本水産学会春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ギンブナの粘膜T細胞の自然免疫機能2022

    • Author(s)
      森岡拓也・趙舸・長澤貴宏・中尾実樹・杣本智軌
    • Organizer
      日本水産学会秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Characterization of CD83 isotypes expressed in monocyte and monocyte-derived dendritic-like cells in ginbuna crucian carp2022

    • Author(s)
      Thu Trang Tran, Harsha Prakash, Takahiro Nagasawa, Miki Nakao, Tomonori Somamoto
    • Organizer
      日本水産学会秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Exploration of antigen-trapping sites in ginbuna crucian carp2022

    • Author(s)
      呉雨、長澤貴宏、中尾実樹、杣本智軌
    • Organizer
      日本水産学会九州支部会
    • Related Report
      2021 Annual Research Report
  • [Presentation] フナ造血器壊死ウイルス(CHNV)に対するDNAワクチン2022

    • Author(s)
      高野倫一、松浦雄太、梅田剛佑、吉野友晃、中西照幸、松山知正、杣本智軌
    • Organizer
      日本魚病学会春季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 粘膜組織を介した抗原投与法の違いによるギンブナ抗体産生応答の比較2021

    • Author(s)
      阪中晴子、長澤貴宏、中尾実樹、杣本智軌,
    • Organizer
      日本魚病学会秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 魚類CD8+ T細胞のMHC非依存的な細胞媒介性細胞傷害における寄生原虫認識受容体の探索2021

    • Author(s)
      助田将樹,長澤貴宏,中尾実樹,杣本智軌
    • Organizer
      日本水産学会春季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 魚類リポカリンタンパク質 TBT-bp2 破壊メダカにおける白点虫感染機構の解析2021

    • Author(s)
      高井優生, 助田将樹, 高村匠, 長野陽介, 島崎洋平, 杣本智軌, 大嶋雄治
    • Organizer
      日本水産学会春季大会
    • Related Report
      2020 Annual Research Report

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

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