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Interaction between outer membrane vesicles and host cells- targeting the development of a new pertussis vaccine

Research Project

Project/Area Number 19K07561
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 49050:Bacteriology-related
Research InstitutionKyorin University

Principal Investigator

Hanawa Tomoko  杏林大学, 医学部, 教授 (80255405)

Co-Investigator(Kenkyū-buntansha) 阿部 章夫  北里大学, 感染制御科学府, 教授 (50184205)
桑江 朝臣  北里大学, 感染制御科学府, 准教授 (60337996)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsワクチン / 外膜ベシクル / 百日咳 / 定着 / バイオフィルム / メンブレンベシクル / OMV / 病原因子 / 百日咳菌 / FHA / Vag8 / ベシクル / 分泌
Outline of Research at the Start

外膜ベシクル(OMV: outer membrane vesicle)は細菌由来のタンパク質、DNAなどが外膜成分により包まれた直径30-250 nmの小胞であり、グラム陰性菌により分泌される。申請者らは、百日咳菌が宿主内微小環境に応答して種々のOMVを分泌しそれらが異なる役割を担うことで病原性を制御しているという仮説の下、細胞表層ストレス応答およびペリクルに由来するOMVの特徴および宿主細胞との相互作用を解析する。

Outline of Final Research Achievements

Membrane vesicle (MV) is a vesicle with a diameter of 30-250 nm secreted by bacterial cells and contains virulence factors. Therefore, outer membrane vesicles (OMVs) which secreted by Gram-negative bacteria such as B. pertussis are attracted for their application in vaccines.
In this study, we compared the proteins in OMVs released from planktonic bacterial cells to those from biofilms. Accordingly, OMVs commonly contained the Vag8, which relates to serum resistance. On the other hand, OMVs of planktonic bacteria contained significantly more adenylate cyclase toxin than those of biofilms. On the other hand, OMVs released from biofilms contained several colonization factors. Additionally, both OMVs secreted from planktonic cells and biofilm showed cytotoxicity to J774, mouse macrophage-like cell and A549, an alveolar epithelial cell.
These results suggest that the OMVs released by bacteria have different roles on the pathogenicity.

Academic Significance and Societal Importance of the Research Achievements

OMVについては真核細胞の放出する小胞であるエクソゾームとの類似点も多く、近年多くの発見があった。中でも細菌のバイオフィルムからのベシクルの分泌にはファージ由来のエンドライシンが関与する新たな機構が発見された。従って、百日咳菌のバイオフィルムから放出されるOMVは浮遊菌から放出されるOMVとは異なる機構分泌されることが予想された。本研究の成果は百日咳ワクチンの開発に重要な知見となる。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (13 results)

All 2023 2022 2020 2019

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (8 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Bcr4 Is a Chaperone for the Inner Rod Protein in the Bordetella Type III Secretion System2022

    • Author(s)
      Goto M, Abe A, Hanawa T, Suzuki M, Kuwae A.
    • Journal Title

      Microbiology Spectrum

      Volume: 10 Issue: 5

    • DOI

      10.1128/spectrum.01443-22

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Transcriptional Downregulation of a Type III Secretion System under Reducing Conditions inBordetella pertussis2020

    • Author(s)
      Goto Masataka、Hanawa Tomoko、Abe Akio、Kuwae Asaomi
    • Journal Title

      Journal of Bacteriology

      Volume: 202 Issue: 21

    • DOI

      10.1128/jb.00400-20

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Skin and Soft Tissue Infections Caused by Different Genotypes of PVL-Positive Community-Acquired Methicillin-Resistant <i>Staphylococcus aureus</i> Strains2020

    • Author(s)
      Hanawa T, Shimoda-Komatsu Y, Araki K, Ohyama M, Ohnishi H, Kamiya S, Matsuda T.
    • Journal Title

      Japanese Journal of Infectious Diseases

      Volume: 73 Issue: 1 Pages: 72-75

    • DOI

      10.7883/yoken.JJID.2019.162

    • NAID

      130007789141

    • ISSN
      1344-6304, 1884-2836
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Enhanced infectivity of strains of Helicobacter pylori isolated from children compared with parental strains2019

    • Author(s)
      Zaman Cynthia、Osaki Takako、Furuta Yoshikazu、Hojo Fuhito、Yonezawa Hideo、Konno Mutsuko、Kurata Satoshi、Hanawa Tomoko、Kamiya Shigeru
    • Journal Title

      Journal of Medical Microbiology

      Volume: 68 Issue: 4 Pages: 633-641

    • DOI

      10.1099/jmm.0.000918

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Silviavirus phage phiMR003 displays a broad host range against methicillin-resistant Staphylococcus aureus of human origin.2019

    • Author(s)
      Peng C, Hanawa T, Azam AH, LeBlanc C, Ung P, Matsuda T, Onishi H, Miyanaga K, Tanji Y.
    • Journal Title

      Appl Microbiol Biotechnol.

      Volume: 103 Issue: 18 Pages: 7751-7765

    • DOI

      10.1007/s00253-019-10039-2

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] ボルデテラが産生するBcr4はIII型分泌装置のロッドタンパク質のシャペロンである2023

    • Author(s)
      後藤雅貴、桑江朝臣、花輪智子、鈴木仁人、阿部章夫
    • Organizer
      第96 回 日本細菌学会総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 気管支敗血症が産生するBcr4によるIII型分泌装置制御機構の解析2022

    • Author(s)
      後藤雅貴、桑江朝臣、花輪智子、阿部章夫
    • Organizer
      第95回日本細菌学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] 百日咳菌メンブレンベシクルに含まれるタンパク質の網羅的解析2020

    • Author(s)
      花輪智子、 米澤英雄、 大崎敬子、神谷茂
    • Organizer
      第69回日本感染症学会東日本地方会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] 百日咳菌の浮遊菌およびバイオフィルム形成菌から分泌されるメンブレンベシクルに含まれる病原因子2020

    • Author(s)
      花輪智子、蒲地一成、桑江麻臣、阿部章夫、米澤英雄、大崎敬子、北条史、神谷茂、三戸部治郎
    • Organizer
      第94回 日本細菌学会
    • Related Report
      2020 Research-status Report
  • [Presentation] ファージ療法の実現に向けた治療効果の基礎的検討 - ヒト臨床試験の検証から -2020

    • Author(s)
      花輪智子、松田剛明
    • Organizer
      第93回日本細菌学会総会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 百日咳菌の外膜ベシクルに含まれる病原因子の解析2019

    • Author(s)
      花輪智子、蒲地 一成、米澤 英雄、蔵田 訓、大崎 敬子、北条 史、神谷茂
    • Organizer
      第92回日本細菌学会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] (p)ppGpp欠損変異によるHelicobacter pylori の性状の変化2019

    • Author(s)
      宮岡千尋、花輪智子、北条史、河野洋平、米澤英雄、大崎敬子、蔵田訓、川上速人、青山隆夫、神谷茂
    • Organizer
      第33回日本バイオフィルム学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] Efficacy of Novel MRSA phage Treatment in Murine Wound Infection Model2019

    • Author(s)
      T. Hanawa, K. Miyanaga, F. Hojo, N. Ohura, H. Ohnishi, S. Kamiya, Y. Tanji, T. Matsuda
    • Organizer
      ASM Microbe 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2024-01-30  

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