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The role of prostaglandins and microbiota in small intestinal ulcer formation

Research Project

Project/Area Number 20K22929
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0903:Organ-based internal medicine and related fields
Research InstitutionKyushu University

Principal Investigator

Matsuno Yuichi  九州大学, 大学病院, 助教 (60876522)

Project Period (FY) 2020-09-11 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords小腸潰瘍 / プロスタグランジン / 腸内細菌叢 / 非特異性多発性小腸潰瘍症 / CEAS / NSAIDs
Outline of Research at the Start

非特異性多発性小腸潰瘍症は、難治性の小腸疾患であり、近年プロスタグランジン (PG)輸送体をコードするSLCO2A1遺伝子の変異が原因であることが明らかとなったが、その発症機序は不明であり、治療法は確立されていない。また非ステロイド性抗炎症薬起因性小腸潰瘍は、PGの欠乏が病因と考えられており、これらのPG代謝に関連した疾患群に対し、PG関連腸症という疾患概念が提唱されている。本研究ではPG関連腸症の小腸組織におけるPGの分布、効果発現を免疫組織化学的手法から検討するとともに細菌叢や遺伝子発現の網羅解析を行うことでPG関連腸症の発症機序に迫り、新規治療ターゲットを探索する。

Outline of Final Research Achievements

Although prostaglandins (PGs) are involved in the pathogenesis of both Chronic enteropathy associated with SLCO2A1 gene (CEAS) and NSAIDs-induced small intestinal ulcer, the pathogenesis of these disease is unclear. We conducted an RCT to clarify the involvement of intestinal microbiota in NSAIDs-induced small intestinal ulcer, and found that the incidence of small intestinal ulcer in the probiotic group was significantly lower than that in the placebo group. Analyzing the microbiota of the small intestine, we examined the differences in the microbiota in each part of the gastrointestinal tract. We are preparing to examine the changes in microbiota in NSAIDs-induced small intestinal ulcers and the expression of PG and its receptors and transporters in CEAS.

Academic Significance and Societal Importance of the Research Achievements

プロバイオティクスによってNSAIDs起因性小腸潰瘍の発生率を有意に低くすることが示唆されたことにより、今後NSAIDs起因性小腸潰瘍の治療としてのプロバイオティクスの可能性が示された。また今後NSAIDs起因性小腸潰瘍の腸内細菌叢の検討により、NSAIDs起因性小腸潰瘍のみならず、CEASを含めたプロスタグランジン関連腸症の発症メカニズムの解明につながる可能性がある。また今回行った消化管各部位での細菌叢の相違の検討結果から、空腸と十二指腸では類似したクラスターが形成されており、空腸からの検体採取が困難であれば十二指腸から採取した検体も解析対象となりうる可能性が示唆された。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (7 results)

All 2022 2021 2020

All Journal Article (6 results) (of which Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (1 results)

  • [Journal Article] The Compositional Structure of the Small Intestinal Microbial Community via Balloon-Assisted Enteroscopy2022

    • Author(s)
      Nagasue T, Hirano A, Torisu T, Umeno J, Shibata H, Moriyama T, Kawasaki K, Fujioka S, Fuyuno Y, Matsuno Y, Esaki M, Kitazono T
    • Journal Title

      Digestion

      Volume: - Issue: 4 Pages: 1-11

    • DOI

      10.1159/000524023

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 炎症性腸疾患の画像所見と鑑別診断 輪状潰瘍2021

    • Author(s)
      松野 雄一,梅野 淳嗣,冬野 雄太,鳥巣 剛弘
    • Journal Title

      胃と腸

      Volume: 56 Pages: 1527-1533

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Ustekinumab improves active Crohn’s disease by suppressing the T Helper 17 pathway.2021

    • Author(s)
      Ihara Y, Torisu T, Miyawaki K, Umeno J, Kawasaki K, Hirano A, Fujioka S, Fuyuno Y, Matsuno Y, Sugio T, Sasaki K, Moriyama T, Akashi K, Kitazono T
    • Journal Title

      Digestion

      Volume: 102 Issue: 6 Pages: 946-955

    • DOI

      10.1159/000518103

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Gastric microbiota in patients with Helicobacter pylori-negative gastric MALT lymphoma.2021

    • Author(s)
      Tanaka T, Matsuno Y, Torisu T, Shibata H, Hirano A, Umeno J, Kawasaki K, Fujioka S, Fuyuno Y, Moriyama T, Esaki M, Kitazono T
    • Journal Title

      Medicine

      Volume: 100 Issue: 38 Pages: e27287-e27287

    • DOI

      10.1097/md.0000000000027287

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Role of barium enema examination for the diagnosis of submucosal invasion depth in T1 colorectal cancers.2021

    • Author(s)
      Kawasaki K, Torisu T, Nagahata T, Esaki M, Kurahara K, Eizuka M, Tanaka Y, Fujiwara M, Kawatoko S, Oshiro Y, Yamada S, Ikegami K, Fujioka S, Fuyuno Y, Matsuno Y, Umeno J, Moriyama T, Kitazono T, Sugai T, Matsumoto T
    • Journal Title

      Cancer Imaging

      Volume: 21 Issue: 1 Pages: 66-66

    • DOI

      10.1186/s40644-021-00437-z

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] B cell receptor signaling related to resistance to Helicobacter pylori eradication therapy in gastric diffuse large B cell lymphoma2020

    • Author(s)
      Torisu Takehiro、Kawano Shinichi、Miyawaki Kohta、Yamamoto Hidetaka、Ihara Yutaro、Matsuno Yuichi、Torisu Kumiko、Sugio Takeshi、Sasaki Kensuke、Shimakawa Takashi、Kato Koji、Akashi Koichi、Nakamura Shotaro、Kitazono Takanari
    • Journal Title

      Hematological Oncology

      Volume: 39 Issue: 1 Pages: 145-147

    • DOI

      10.1002/hon.2816

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] PPI併用下でのNSAIDs起因性小腸粘膜傷害に対するLactobacillus salivarius WB21株による予防効果2020

    • Author(s)
      岡本康治、平野敦士、江崎幹宏、小林広幸、鳥巣剛弘
    • Organizer
      第109回日本消化器内視鏡学会九州支部例会
    • Related Report
      2020 Research-status Report

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Published: 2020-09-29   Modified: 2023-01-30  

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