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Elucidation of the mechanism for immunological memory by single cell analysis

Research Project

Project/Area Number 21H02749
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 49070:Immunology-related
Research InstitutionThe University of Tokyo (2023)
Osaka University (2021-2022)

Principal Investigator

Inoue Takeshi  東京大学, 新世代感染症センター, 教授 (80466838)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2023: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2022: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2021: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Keywords胚中心 / 免疫記憶 / B細胞受容体 / 記憶B細胞 / シングルセル / 抗体 / 記憶B細胞
Outline of Research at the Start

液性免疫記憶の中心は、記憶B細胞が抗体産生細胞へ分化し高親和性抗体を産生してウイルス・病原体を無毒化することであり、記憶B細胞産生メカニズムの理解は有効なワクチン開発のためにも必須である。申請者らは先行研究において、胚中心から記憶B細胞が産生されるメカニズム解明に注力し、記憶B前駆細胞亜集団を同定して胚中心における代謝制御とB細胞受容体からの生存シグナルが記憶B細胞分化に重要であることを明らかにした。本研究ではこの研究を発展させ、ヘテロジニアスな胚中心B細胞集団のなかでBCR発現の勾配を生み出して記憶B細胞分化を導く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

We have previously identified memory B precursor cells in the germinal center (GC) and found that GC B cells expressing higher surface BCR favor memory B cell fate. To elucidate the physiological significance of BCR expression during memory B cell differentiation, we analyzed the factor for generating the difference in surface BCR expression in GC B cells. Using our single B cell analysis technology, we generated BCR knock-in B cells with similar affinity and different levels of surface BCR expression, and analyzed their in vivo differentiation upon immunization. Our results suggest that the difference in BCR surface expression can affect the efficiency of GC B cell differentiation into memory B cells.

Academic Significance and Societal Importance of the Research Achievements

本研究はこれまで明らかになっていない複雑な液性免疫記憶の成立のメカニズムの解明につながる基礎研究であり、将来的により効率的な新しいワクチン開発に貢献する可能性がある。

Report

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

    (17 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (3 results) Journal Article (8 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 8 results,  Open Access: 6 results) Presentation (6 results) (of which Invited: 4 results)

  • [Int'l Joint Research] The University of Iowa(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] The University of Iowa(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Rockefeller University(米国)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] STIM-mediated calcium influx regulates maintenance and selection of germinal center B cells2024

    • Author(s)
      Yutaro Yada, Masanori Matsumoto, Takeshi Inoue, Akemi Baba, Ryota Higuchi, Chie Kawai, Masashi Yanagisawa, Daisuke Kitamura, Shouichi Ohga, Tomohiro Kurosaki, Yoshihiro Baba
    • Journal Title

      Journal of Experimental Medicine

      Volume: 221 Issue: 1

    • DOI

      10.1084/jem.20222178

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Memory B cell differentiation from germinal centers2023

    • Author(s)
      Inoue Takeshi
    • Journal Title

      International Immunology

      Volume: 35 Issue: 12 Pages: 565-570

    • DOI

      10.1093/intimm/dxad017

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] CD62L expression marks SARS-CoV-2 memory B cell subset with preference for neutralizing epitopes2023

    • Author(s)
      Onodera T, Sax N, Sato T, Adachi Y, Kotaki R, Inoue T, Shinnakasu R, Nakagawa T, Fukushi S, Terooatea T, Yoshikawa M, Tonouchi K, Nagakura T, Moriyama S, Matsumura T, Isogawa M, Terahara K, Takano T, Sun L, Nishiyama A, Omoto S, Shinkai M, Kurosaki T, Yamashita K, Takahashi Y.
    • Journal Title

      Science Advances

      Volume: 9 Issue: 24

    • DOI

      10.1126/sciadv.adf0661

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Memory B cells2023

    • Author(s)
      Inoue T, Kurosaki T.
    • Journal Title

      Nature Reviews Immunology

      Volume: 24 Issue: 1 Pages: 5-17

    • DOI

      10.1038/s41577-023-00897-3

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Antibody feedback contributes to facilitating the development of Omicron-reactive memory B cells in SARS-CoV-2 mRNA vaccinees2023

    • Author(s)
      Inoue T, Shinnakasu R, Kawai C, Yamamoto H, Sakakibara S, Ono C, Itoh Y, Terooatea T, Yamashita K, Okamoto T, Hashii N, Ishii-Watabe A, Butler NS, Matsuura Y, Matsumoto H, Otsuka S, Hiraoka K, Teshima T, Murakami M, Kurosaki T.
    • Journal Title

      J Exp Med.

      Volume: 220(2) Issue: 2

    • DOI

      10.1084/jem.20221786

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The transcription factor Bach2 negatively regulates murine natural killer cell maturation and function2022

    • Author(s)
      Li S, Bern MD, Miao B, Fan C, Xing X, Inoue T, Piersma SJ, Wang T, Colonna M, Kurosaki T, Yokoyama WM.
    • Journal Title

      eLife

      Volume: 11

    • DOI

      10.7554/elife.77294

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Generation of High Quality Memory B Cells2022

    • Author(s)
      Inoue Takeshi、Shinnakasu Ryo、Kurosaki Tomohiro
    • Journal Title

      Frontiers in Immunology

      Volume: 12 Pages: 825813-825813

    • DOI

      10.3389/fimmu.2021.825813

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] B cell-intrinsic TBK1 is essential for germinal center formation during infection and vaccination in mice2021

    • Author(s)
      Lee MSL, Inoue T, Ise W, Matsuo-Dapaah J, Wing JB, Temizoz B, Kobiyama K, Hayashi T, Patil A, Sakaguchi S, Simon AK, Bezbradica JS, Nagatoishi S, Tsumoto K, Inoue J, Akira S, Kurosaki T, Ishii KJ, Coban C
    • Journal Title

      Journal of Experimental Medicine

      Volume: 219 Issue: 2

    • DOI

      10.1084/jem.20211336

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Overview of immunological basis for vaccination2024

    • Author(s)
      Takeshi Inoue
    • Organizer
      第52回日本免疫学会学術集会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Csk restrains BCR-mediated ROS production and contributes to germinal center selection and affinity maturation2024

    • Author(s)
      Takeshi Inoue, Yuma Matsumoto, Masato Okada, Tomohiro Kurosaki
    • Organizer
      第1回AMED-SCARDAワクチン開発拠点事業合同シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] 3回目mRNAワクチン接種によってオミクロン中和抗体ができるしくみ2023

    • Author(s)
      井上 毅
    • Organizer
      第1回新型コロナウイルス研究集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] COVID-19 mRNAワクチンでなぜオミクロン中和抗体が作られるのか2023

    • Author(s)
      井上 毅
    • Organizer
      第2回日本医学会連合リトリート
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Why can 3rd mRNA vaccination induce Omicron-neutralizing antibodies?2023

    • Author(s)
      Takeshi Inoue
    • Organizer
      東京大学医科学研究所 学友会セミナー
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Germinal center B cell selection and survival regulated by optimal BCR signaling2022

    • Author(s)
      井上 毅
    • Organizer
      第51回日本免疫学会学術集会
    • Related Report
      2022 Annual Research Report
    • Invited

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

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