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Studies on tetrameric secretory IgA antibodies as a platform for the development of antiviral antibody therapeutics

Research Project

Project/Area Number 20H03500
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 49060:Virology-related
Research InstitutionNational Institute of Infectious Diseases

Principal Investigator

Suzuki Tadaki  国立感染症研究所, 感染病理部, 部長 (30527180)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2022: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2021: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2020: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Keywords分泌型IgA抗体 / 呼吸器ウイルス感染症 / 抗体医薬 / SARS-CoV-2 / 四量体分泌型IgA抗体 / 抗ウイルス抗体 / IgA抗体 / ウイルス感染症 / 四量体IgA抗体 / 抗ウイルス抗体医薬 / 粘膜抗体 / インフルエンザウイルス
Outline of Research at the Start

四量体SIgAはIgGや単量体IgAより機能活性が高い。我々はモノクローナル抗体の抗原認識部位を保持しつつ基本骨格をIgGからIgAに変換し、さらに四量体化させたモノクローナル四量体SIgAを作製する技術を開発した。この四量体SIgAを抗体医薬として作製することができれば、ウイルス変異に耐性の高い抗ウイルス薬の開発が可能と考えられる。そこで、本研究では、四量体SIgAの抗体医薬への応用を見据え、四量体SIgA分子構造解析による四量体SIgA形成機構の解明を目指すとともに、四量体SIgAによるウイルス感染抑制機構の全容を理解することを目的とする。

Outline of Final Research Achievements

Secretory IgA (sIgA) antibodies induced on respiratory mucosa are thought to play an important role in the suppression of SARS-CoV-2 infection, a respiratory viral infection, as a front line of in vivo infection defense. In this study, we generated human monoclonal sIgA antibodies of several anti-SARS-CoV-2 neutralizing antibody clones, compared and evaluated the variation in their antiviral activity, in order to clarify the role of sIgA antibodies in SARS-CoV-2 infection. The results suggest that multimeric sIgA antibodies are advantageous for protection against SARS-CoV-2 infection due to the enhanced antiviral activity of each antibody clone.

Academic Significance and Societal Importance of the Research Achievements

本研究の結果から、インフルエンザウイルスと同様に呼吸器上皮を標的とするSARS-CoV-2の感染防御において,単量体型のIgG抗体やIgA抗体よりも多量体型のsIgA抗体の方が有利であることが示唆された。以上の結果は,現在,世界中で開発が進められているSARS-CoV-2に対する粘膜抗体誘型ワクチン開発では、多量体型のsIgA抗体の評価が重要であることを示唆するとともに,呼吸器粘膜を標的すとするウイルス感染症に対して粘膜上でウイルス感染を抑制する新たな抗体医薬のプラットフォームとしてsIgA抗体フレームワークが有望であることを示している。

Report

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

    (11 results)

All 2022 2021 2020

All Journal Article (8 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 8 results,  Open Access: 8 results) Presentation (2 results) (of which Invited: 2 results) Patent(Industrial Property Rights) (1 results) (of which Overseas: 1 results)

  • [Journal Article] Intranasal vaccination induced cross-protective secretory IgA antibodies against SARS-CoV-2 variants with reducing the potential risk of lung eosinophilic immunopathology2022

    • Author(s)
      Hemmi Takuya、Ainai Akira、Hashiguchi Takao、Tobiume Minoru、Kanno Takayuki、Iwata-Yoshikawa Naoko、Iida Shun、Sato Yuko、Miyamoto Sho、Ueno Akira、Sano Kaori、Saito Shinji、Shiwa-Sudo Nozomi、Nagata Noriyo、Tamura Koji、Suzuki Ryosuke、Hasegawa Hideki、Suzuki Tadaki
    • Journal Title

      Vaccine

      Volume: 40 Issue: 41 Pages: 5892-5903

    • DOI

      10.1016/j.vaccine.2022.08.049

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Isolation of human monoclonal antibodies with neutralizing activity to a broad spectrum of SARS-CoV-2 viruses including the Omicron variants2022

    • Author(s)
      Ueno M, Iwata-Yoshikawa N, Matsunaga A, Okamura T, Saito S, Ashida S, Yoshida I, Nagashima M, Asakura H, Yaoita Y, Suzuki J, Sadamasu K, Yoshimura K, Kutsuna S, Shiwa-Sudo N, Nagata N, Suzuki T, Suzuki A, Okamoto M, Kimura M, Ohmagari N, Miura R, Ishizaka Y
    • Journal Title

      Antiviral Research

      Volume: 201 Pages: 105297-105297

    • DOI

      10.1016/j.antiviral.2022.105297

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Vaccination-infection interval determines cross-neutralization potency to SARS-CoV-2 Omicron after breakthrough infection by other variants2022

    • Author(s)
      Miyamoto S, Arashiro T, Adachi Y, Moriyama S, Kinoshita H, Fukushi S, Takahashi Y, Suzuki T et al.
    • Journal Title

      Med

      Volume: 3 Issue: 4 Pages: 249-261

    • DOI

      10.1016/j.medj.2022.02.006

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Structure-Guided Creation of an Anti-HA Stalk Antibody F11 Derivative That Neutralizes Both F11-Sensitive and -Resistant Influenza A(H1N1)pdm09 Viruses2021

    • Author(s)
      Kotani Osamu、Suzuki Yasushi、Saito Shinji、Ainai Akira、Ueno Akira、Hemmi Takuya、Sano Kaori、Tabata Koshiro、Yokoyama Masaru、Suzuki Tadaki、Hasegawa Hideki、Sato Hironori
    • Journal Title

      Viruses

      Volume: 13 Issue: 9 Pages: 1733-1733

    • DOI

      10.3390/v13091733

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] An influenza HA stalk reactive polymeric IgA antibody exhibits anti-viral function regulated by binary interaction between HA and the antibody2021

    • Author(s)
      Sano Kaori、Saito Shinji、Suzuki Tadaki、Kotani Osamu、Ainai Akira、van Riet Elly、Tabata Koshiro、Saito Kumpei、Takahashi Yoshimasa、Yokoyama Masaru、Sato Hironori、Maruno Takahiro、Usami Kaede、Uchiyama Susumu、Ogawa-Goto Kiyoko、Hasegawa Hideki
    • Journal Title

      PLOS ONE

      Volume: 16 Issue: 1 Pages: 0245244-0245244

    • DOI

      10.1371/journal.pone.0245244

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A potential role of non-neutralizing IgA antibodies in cross-protective immunity against influenza A viruses of multiple hemagglutinin subtypes2020

    • Author(s)
      Okuya K, Yoshida R, Manzoor R, Saito S, Suzuki T, Sasaki M, Saito T, Kida Y, Mori-Kajihara A, Kondoh T, Sato M, Kajihara M, Miyamoto H, Ichii O, Higashi H, Takada A
    • Journal Title

      J Virol

      Volume: - Issue: 12 Pages: 408-420

    • DOI

      10.1128/jvi.00408-20

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Stereotyped B-cell response that counteracts antigenic variation of influenza viruses2020

    • Author(s)
      Tonouchi Keisuke、Adachi Yu、Moriyama Saya、Sano Kaori、Tabata Koshiro、Ide Keigo、Takeyama Haruko、Suzuki Tadaki、Takahashi Yoshimasa
    • Journal Title

      International Immunology

      Volume: 32 Issue: 9 Pages: 613-621

    • DOI

      10.1093/intimm/dxaa038

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comparative Analyses of the Antiviral Activities of IgG and IgA Antibodies to Influenza A Virus M2 Protein2020

    • Author(s)
      Okuya Kosuke、Eguchi Nao、Manzoor Rashid、Yoshida Reiko、Saito Shinji、Suzuki Tadaki、Sasaki Michihito、Saito Takeshi、Kida Yurie、Mori-Kajihara Akina、Miyamoto Hiroko、Ichii Osamu、Kajihara Masahiro、Higashi Hideaki、Takada Ayato
    • Journal Title

      Viruses

      Volume: 12 Issue: 7 Pages: 780-780

    • DOI

      10.3390/v12070780

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] SARS-CoV-2変異株のウイルス学的特徴と血清学的特徴の解明を目指した基盤研究2022

    • Author(s)
      鈴木忠樹
    • Organizer
      第26回日本ワクチン学会学術集会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] SARS-CoV-2に対する多量体型IgA抗体の機能解析と経鼻ワクチン開発2022

    • Author(s)
      鈴木忠樹
    • Organizer
      日本薬学会第142年会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Patent(Industrial Property Rights)] 多量体IgA抗体の作製法及び多重特異性多量体IgA抗体2020

    • Inventor(s)
      山下泰造、田畑耕史郎、鈴木忠樹、長谷川秀樹
    • Industrial Property Rights Holder
      山下泰造、田畑耕史郎、鈴木忠樹、長谷川秀樹
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-051139
    • Filing Date
      2020
    • Related Report
      2020 Annual Research Report
    • Overseas

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Published: 2020-04-28   Modified: 2024-01-30  

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