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Development of a Novel Treatment for Non-Alcoholic Fatty Liver Disease Focusing on the Intestinal Barrier

Research Project

Project/Area Number 21K07966
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53010:Gastroenterology-related
Research InstitutionYokohama City University

Principal Investigator

KESSOKU Takaomi  横浜市立大学, 医学部, 客員講師 (30738620)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords非アルコール性脂肪肝疾患 / 腸管バリア / フェカリバクテリウム / 腸管透過性
Outline of Research at the Start

非アルコール性脂肪肝疾患(NAFLD)の増悪の原因の一つとして,腸管バリア機能が正常であれば腸管内に留まる腸内細菌由来のエンドトキシン(ET)の血液中への流出が考えられる.我々は,ヒト糞便サンプルから抽出した腸内細菌の1つFaecalibacterium(FB)の占拠率低下が, 血中ET値の増加および腸管バリア機能の低下と有意に相関していることを見出した.そして,NASHマウスモデルにFBを投与すると腸管バリアの改善によって, NASH病態が改善することを明らかにした. 本研究では, FBの腸管バリア機能改善の分子機序を解明および肝外合併症である動脈硬化や大腸がんに対する影響を検討する.

Outline of Final Research Achievements

Fecalibacterium is decreased in stools in patients with non-alcoholic fatty liver and advanced fibrosis. Administration of Fecalibacterium to a mouse model of hepatocellular carcinoma inhibited the progression of hepatocellular carcinoma, and the mechanism was related to the intestinal barrier and CD8 T cells.

Academic Significance and Societal Importance of the Research Achievements

NAFLD-HCC症例でフェカリバクテリウムを増やす治療や腸管バリア、CD8をターゲットとした新規治療開発が重要である。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (2 results)

All 2023 2022

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

  • [Journal Article] Association of Serum and Fecal Bile Acid Patterns With Liver Fibrosis in Biopsy-Proven Nonalcoholic Fatty Liver Disease: An Observational Study2022

    • Author(s)
      Kasai Yuki, Kessoku Takaomi, Nakajima Atsushi
    • Journal Title

      Clinical and Translational Gastroenterology

      Volume: 13 Issue: 7 Pages: e00503-e00503

    • DOI

      10.14309/ctg.0000000000000503

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 腸内細菌/腸管バリアを標的とした非アルコール性脂肪肝疾患に対する新規治療開発2023

    • Author(s)
      結束貴臣
    • Organizer
      日本臨床栄養学会
    • Related Report
      2023 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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