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Pathogenesis of gastrointestinal immune intractable diseases via the intestinal immune response to host invading bacteria.

Research Project

Project/Area Number 20H00536
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 53:Organ-based internal medicine and related fields
Research InstitutionKeio University

Principal Investigator

Kanai Takanori  慶應義塾大学, 医学部(信濃町), 教授 (40245478)

Co-Investigator(Kenkyū-buntansha) 寺谷 俊昭  慶應義塾大学, 医学部(信濃町), 特任准教授 (40624408)
三上 洋平  慶應義塾大学, 医学部(信濃町), 准教授 (80528662)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥45,370,000 (Direct Cost: ¥34,900,000、Indirect Cost: ¥10,470,000)
Fiscal Year 2022: ¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
Fiscal Year 2021: ¥15,340,000 (Direct Cost: ¥11,800,000、Indirect Cost: ¥3,540,000)
Fiscal Year 2020: ¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Keywords炎症性腸疾患 / 潰瘍性大腸炎 / 原発性硬化性胆管炎 / Klebsiella pneumoniae / バクテリオファージ / 慢性免疫難病 / ノトバイオートマウス / 腸内細菌
Outline of Research at the Start

本研究課題は、免疫機能異常が病因とされる免疫疾患群において、病変の首座を「病態の発症臓器」ではなく、「細菌が感染したリンパ節」とし、その病態形成機序の本質に迫ることである。PSCを代表例として、免疫難病において、(1)疾患特異的な体内侵入性細菌による腸管上皮破壊、(2)細菌の侵入ルートとリンパ節への感染、(3)リンパ節での免疫応答、(4)腸管外臓器への免疫細胞蓄積メカニズム、(5)クローン病における生体内侵入腸内細菌による免疫疾患の病態の本質に迫る。さらに、(6)疾患特異的な侵入性細菌を特異的に排除するファージ療法の開発に繋げることを課題とする。

Outline of Final Research Achievements

We focused on the fact that primary sclerosing cholangitis (PSC) frequently occurs in patients with ulcerative colitis (UC) and found that Klebsiella pneumoniae (KP) is abundant in the gut of PSC patients. KP induced TH17 cells in the liver, which we showed is the central mechanism of PSC pathogenesis. The amount of KP invading the lymph nodes and the degree of fibrosis of the liver were positively correlated in PSC/UC mice, indicating that KP-targeted phage therapy may be a potential target for PSC pathology. phage therapy targeting KP may improve PSC.

Academic Significance and Societal Importance of the Research Achievements

慢性免疫疾患と特定腸内細菌との因果関係を示し、その病態機序を解明することは重要である。そこで本研究は、嫌気性腸内細菌がリンパ節を介して生体内に侵入する特性を理解して、これまでの免疫疾患概念と異なり、これら細菌によって惹起される腸管内外の慢性免疫難病の病態形成機序の一端を解明した。これまで原因不明とされた免疫難病において、生体内侵入性腸内細菌による疾患発症機序を提唱するとともに、病因細菌特異的なバクテリオファージを用いた疾患発症・進展に関わる特定腸内細菌の排除を試み、慢性免疫難病の新規治療法の開発につながる基盤的研究成果を得た。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Comments on the Screening Results   Annual Research Report
  • Research Products

    (20 results)

All 2022 2021 2020

All Journal Article (10 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 9 results,  Open Access: 8 results) Presentation (10 results) (of which Invited: 8 results)

  • [Journal Article] Aryl hydrocarbon receptor signals in epithelial cells govern the recruitment and location of Helios+ Tregs in the gut2022

    • Author(s)
      Yoshimatsu Yusuke、Sujino Tomohisa、Hosoe Naoki、et al.
    • Journal Title

      Cell Reports

      Volume: 39 Issue: 6 Pages: 110773-110773

    • DOI

      10.1016/j.celrep.2022.110773

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Enrichment of type I interferon signaling in colonic group 2 innate lymphoid cells in experimental colitis2022

    • Author(s)
      Irie Emi、Ishihara Rino、Mizushima Ichiro、Hatai Shunya、Hagihara Yuya、Takada Yoshiaki、Tsunoda Junya、Iwata Kentaro、Matsubara Yuta、Yoshimatsu Yusuke、Kiyohara Hiroki、Taniki Nobuhito、Sujino Tomohisa、Takabayashi Kaoru、Hosoe Naoki、Ogata Haruhiko、Teratani Toshiaki、Nakamoto Nobuhiro、Mikami Yohei、Kanai Takanori
    • Journal Title

      Frontiers in Immunology

      Volume: 13 Pages: 01-10

    • DOI

      10.3389/fimmu.2022.982827

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effectiveness and Durability of Ustekinumab Therapy With or Without Immunomodulators for Ulcerative Colitis Patients in Japan2022

    • Author(s)
      Aoki Yasuhiro、Sujino Tomohisa、Kawaguchi Takaaki、Sugimoto Shinya、Shimada Fumie、Yoshimatsu Yusuke、Kiyohara Hiroki、Nanki Kosaku、Mikami Yohei、Takabayashi Kaoru、Hosoe Naoki、Ogata Haruhiko、Iwao Yasushi、Kanai Takanori
    • Journal Title

      Crohn's & Colitis 360

      Volume: 4 Issue: 2 Pages: 1-10

    • DOI

      10.1093/crocol/otac010

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Heterogeneity of ILC2s in the Intestine; Homeostasis and Pathology2022

    • Author(s)
      Sunaga Shogo、Tsunoda Junya、Teratani Toshiaki、Mikami Yohei、Kanai Takanori
    • Journal Title

      Frontiers in Immunology

      Volume: 13

    • DOI

      10.3389/fimmu.2022.867351

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Significance of 5-Aminosalicylic Acid Intolerance in the Clinical Management of Ulcerative Colitis2022

    • Author(s)
      Mikami Yohei、Tsunoda Junya、Suzuki Shohei、Mizushima Ichiro、Kiyohara Hiroki、Kanai Takanori
    • Journal Title

      Digestion

      Volume: 104 Issue: 1 Pages: 58-65

    • DOI

      10.1159/000527452

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Organ and brain crosstalk: The liver-brain axis in gastrointestinal, liver, and pancreatic diseases2022

    • Author(s)
      Matsubara Yuta、Kiyohara Hiroki、Teratani Toshiaki、Mikami Yohei、Kanai Takanori
    • Journal Title

      Neuropharmacology

      Volume: 205 Pages: 108915-108915

    • DOI

      10.1016/j.neuropharm.2021.108915

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Circadian rhythms in the tissue-specificity from metabolism to immunity: insights from omics studies2021

    • Author(s)
      Kinouchi Kenichiro、Mikami Yohei、Kanai Takanori、Itoh Hiroshi
    • Journal Title

      Molecular Aspects of Medicine

      Volume: 80 Pages: 100984-100984

    • DOI

      10.1016/j.mam.2021.100984

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bacteriotherapy for inflammatory bowel disease2021

    • Author(s)
      Yusuke Yoshimatsu, Yohei Mikami, Takanori Kanai
    • Journal Title

      Inflammation Regeneration

      Volume: 41 Issue: 1 Pages: 3-3

    • DOI

      10.1186/s41232-020-00153-4

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pathogenesis and management of gastrointestinal inflammation and fibrosis: from inflammatory bowel diseases to endoscopic surgery2021

    • Author(s)
      Iwata Kentaro、Mikami Yohei、Kato Motohiko、Yahagi Naohisa、Kanai Takanori
    • Journal Title

      Inflammation and Regeneration

      Volume: 41 Issue: 1

    • DOI

      10.1186/s41232-021-00174-7

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The liver-brain-gut neural arc maintains the Treg cell niche in the gut2020

    • Author(s)
      Teratani T, Mikami Y, Nakamoto N, Suzuki T, Harada Y, Okabayashi K, Hagihara Y, Taniki N, Kohno K, Sibata S, Miyamoto K, Ishigame H, Chu Po-Sung, Sujino T, Suda W, Hattori M, Matsui M, Okada T, Okano H, Inoue M, Yada T, Kitagawa Y, Yoshimura A, Tanida M, Tsuda M, Iwasaki Y, Kanai T.
    • Journal Title

      Nature

      Volume: 585 Issue: 7826 Pages: 591-596

    • DOI

      10.1038/s41586-020-2425-3

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 消化管疾患と神経の関わり2022

    • Author(s)
      金井 隆典
    • Organizer
      日本消化管学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 臓器間ネットワークでとらえる内科学 腸内細菌beyond the gut2022

    • Author(s)
      金井 隆典
    • Organizer
      第119回日本内科学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 自律神経による免疫の制御 腸管-肝臓-脳ネットワークによる腸管恒常性維持機構の解明2022

    • Author(s)
      寺谷 俊昭, 三上 洋平, 金井 隆典
    • Organizer
      日本自律神経学会総会プログラム
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] マイクロバイオームの最前線2022

    • Author(s)
      金井 隆典
    • Organizer
      日本女性骨盤底医学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] <基礎研究セミナー> 他分野から学ぶメタボエイジング研究の最先端 腸内細菌と腸脳相関2022

    • Author(s)
      金井 隆典
    • Organizer
      日本眼科学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] マイクロバイオーム解析による消化器疾患の病態解明と応用 腸内細菌叢解析による寛解期潰瘍性大腸炎の再燃予測の検討2022

    • Author(s)
      大野 恵子, 三上 洋平, 金井 隆典
    • Organizer
      日本消化器病学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 消化管疾患と神経の関わり2022

    • Author(s)
      金井隆典
    • Organizer
      日本消化管学会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 腸内細菌情報を受信するLiver-brain-gut神経反射は腸管制御性T細胞を調整する2021

    • Author(s)
      金井隆典
    • Organizer
      日本自律神経学会総会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 肝臓-脳-腸管迷走神経反射による腸管制御性T細胞産生機構の解明2021

    • Author(s)
      金井隆典
    • Organizer
      日本消化器病学会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 腸内細菌による免疫・神経反射の臓器連関破綻によるヒト消化器免疫疾患の病態の解明2020

    • Author(s)
      金井隆典
    • Organizer
      第49回日本免疫学会学術集会
    • Related Report
      2020 Annual Research Report

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

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