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The involvement of intestinal mucosa-associated microbiome in disease state of irritable bowel syndrome

Research Project

Project/Area Number 17K15895
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field General internal medicine(including psychosomatic medicine)
Research InstitutionKobe University

Principal Investigator

Inoue Jun  神戸大学, 医学部附属病院, 特定助教 (50631561)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords過敏性腸症候群 / 腸内細菌
Outline of Final Research Achievements

Irritable bowel syndrome (IBS) has a high prevalence in Japan, but its pathology is unknown. In IBS patients, the composition of intestinal flora in the mucosal layer and its involvement in the pathological condition are not clear.
The purpose of this study is to collect intestinal bacteria on the mucosal surface using a lower gastrointestinal endoscope and analyze their composition and involvement in pathological conditions.
In this study, we established a method for analyzing the bacterial flora of the mucosal surface layer collected by gastrointestinal endoscopy, and obtained basic knowledge about the bacterial flora of the mucosal surface layer in IBS patients. From this study, the microbiota on the surface of the mucous membrane could serve as a biomarker for IBS diagnosis or disease status. The progress toward research on IBS pathology mediated via microbiome is expected which have great social significance.

Academic Significance and Societal Importance of the Research Achievements

過敏性腸症候群(IBS)において、腸管粘膜表層の細菌叢の構成や病態への関与はこれまでほとんど明らかとされていない。本研究では、消化管内視鏡により採取した粘膜表層の細菌叢の解析方法を確立し、IBS患者の腸管粘膜表層の細菌叢の解析を行った。本研究により、粘膜表層の菌叢の違いがIBS診断や病勢のバイオマーカーとなる可能性や、腸内細菌を介したIBS発病メカニズム研究への進展が見込まれ、その社会的意義は大きい。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (6 results)

All 2019 2018 2017

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

  • [Journal Article] Construction of a Model Culture System of Human Colonic Microbiota to Detect Decreased Lachnospiraceae Abundance and Butyrogenesis in the Feces of Ulcerative Colitis Patients.2019

    • Author(s)
      Sasaki K, Inoue J, Sasaki D, Hoshi N, Shirai T, Fukuda I, Azuma T, Kondo A, Osawa R
    • Journal Title

      Biotechnology journal

      Volume: Epub ahead of print Issue: 5 Pages: 1800555-1800555

    • DOI

      10.1002/biot.201800555

    • NAID

      120006645722

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Proton Pump Inhibitors Increase the Susceptibility of Mice to Oral Infection with Enteropathogenic Bacteria.2018

    • Author(s)
      1Yasutomi E, Hoshi N, Adachi S, Otsuka T, Kong L, Ku Y, Yamairi H, Inoue J, Ishida T, Watanabe D, Ooi M, Yoshida M, Tsukimi T, Fukuda S, Azuma T.
    • Journal Title

      Dig Dis Sci.

      Volume: 63 Issue: 4 Pages: 881-889

    • DOI

      10.1007/s10620-017-4905-3

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Indigo Naturalis Ameliorates Oxazolone-Induced Dermatitis but Aggravates Colitis by Changing the Composition of Gut Microflora.2017

    • Author(s)
      2Adachi S, Hoshi N, Inoue J, Yasutomi E, Otsuka T, Dhakhwa R, Wang Z, Koo Y, Takamatsu T, Matsumura Y, Yamairi H, Watanabe D, Ooi M, Tanahashi T, Nishiumi S, Yoshida M, Azuma T.
    • Journal Title

      Int Arch Allergy Immunol.

      Volume: 173 Issue: 1 Pages: 23-33

    • DOI

      10.1159/000471923

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] The dynamics of mucosa-associate bacteria in Irritable Bowel Disease​2019

    • Author(s)
      Jun Inoue
    • Organizer
      UEGW 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Successful detection of dysbiosis and altered short-chain-fatty acids levels in in vitro colonic microbiota culture system using fecal samples of ulcerative colitis.2018

    • Author(s)
      1.Jun Inoue, Kengo Sasaki, Namiko Hoshi, Daisuke Sasaki, Itsuko Fukuda, Ken-ichi Yoshida, Takeshi Azuma, Akihiko Kondo, Ro Osawa
    • Organizer
      European Crohn’s and Colitis Organisation
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Patent(Industrial Property Rights)] 潰瘍性大腸炎の検査方法および装置ならびに治療薬のスクリーニング方法2017

    • Inventor(s)
      佐々木建吾、星奈美子、井上潤、東健、大澤朗、佐々木大介、近藤明彦
    • Industrial Property Rights Holder
      佐々木建吾、星奈美子、井上潤、東健、大澤朗、佐々木大介、近藤明彦
    • Industrial Property Rights Type
      特許
    • Filing Date
      2017
    • Acquisition Date
      2017
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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