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Clarification of the mechanism of seasonal influenza-related enteritis

Research Project

Project/Area Number 18K16183
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 54030:Infectious disease medicine-related
Research InstitutionKyoto Prefectural University of Medicine

Principal Investigator

Hirose Ryohei  京都府立医科大学, 医学(系)研究科(研究院), 助教 (50795383)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsインフルエンザ / インフルエンザウイルス / 腸管感染 / レオロジー / 粘液
Outline of Final Research Achievements

In this study, we elucidated the mechanism by which influenza viruses in mucus from the human upper respiratory tract are not inactivated by exposure to gastric acid or digestive juices (bile and pancreatic juice). In addition, we conducted influenza virus infection experiments using three-dimensional cultured intestinal epithelial cells and intestinal tissues from autopsies, and demonstrated that influenza viruses can infect intestinal epithelium. Thus, we clarified the mechanism of influenza virus infection of the intestinal tract.

Academic Significance and Societal Importance of the Research Achievements

本研究ではヒト上気道由来粘液中のインフルエンザウイルスが外部環境から保護されるメカニズムの解明を行った。さらに、これらのウイルスが腸管上皮で感染を起こしうることを明らかにした。高齢者や妊婦・基礎疾患のある患者においてインフルエンザ感染は致死的になりうる。また若年者においてもインフルエンザのアウトブレイクによる社会的損失は極めて深刻な問題となっている。そのためインフルエンザウイルスにおける腸管感染の可否の評価は臨床上非常に重要で、インフルエンザの診断・予防・治療に大きく貢献する。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (6 results)

All 2020 2019 2018

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (3 results) Book (1 results)

  • [Journal Article] Situations leading to reduced effectiveness of current hand hygiene against infectious mucus from influenza-infected patients.2019

    • Author(s)
      Hirose R, Nakaya T, Naito Y, Daidoji T, Bandou R, Inoue K, Dohi O, Yoshida N, Konishi H, Itoh Y.
    • Journal Title

      mSphere

      Volume: 4 Issue: 5

    • DOI

      10.1128/msphere.00474-19

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reply to Peters and Pittet, "Influenza and Alcohol-Based Handrub: the Danger of Ignoring Clinical Relevance," and Boyce, "Alcohol-Based Handrubs and Influenza A".2019

    • Author(s)
      Hirose R, Nakaya T
    • Journal Title

      mSphere

      Volume: 4 Issue: 6

    • DOI

      10.1128/msphere.00745-19

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 季節性インフルエンザによる腸管感染に対する基礎・臨床研究両面からのアプローチ2019

    • Author(s)
      廣瀬亮平
    • Organizer
      JDDW 2019
    • Related Report
      2019 Research-status Report
  • [Presentation] Viscosity is an important factor in acquisition of resistance to alcohol-based disinfectants by pathogens present in mucus2018

    • Author(s)
      廣瀬亮平
    • Organizer
      第92回 日本感染症学会総会
    • Related Report
      2018 Research-status Report
  • [Presentation] 季節性インフルエンザ関連腸炎に関する研究の最前線2018

    • Author(s)
      廣瀬亮平
    • Organizer
      第109回 日本消化器病学会近畿支部例会
    • Related Report
      2018 Research-status Report
  • [Book] INFECTION CONTROL2020

    • Author(s)
      廣瀬亮平
    • Total Pages
      1
    • Publisher
      株式会社メディカ出版
    • ISBN
      4840470154
    • Related Report
      2019 Research-status Report

URL: 

Published: 2018-04-23   Modified: 2022-01-27  

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