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Preventive effect of indigestible polysaccharide on of inflammatory bowel disease through the alteration of gut microenvironment.

Research Project

Project/Area Number 20K05929
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38050:Food sciences-related
Research InstitutionToyama Prefectural University

Principal Investigator

Furusawa Yukihiro  富山県立大学, 工学部, 准教授 (80632306)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords食物繊維 / 腸内細菌 / 短鎖脂肪酸 / 制御性T細胞 / 炎症性腸疾患 / 大腸炎 / 難消化性多糖類 / 腸管免疫
Outline of Research at the Start

本研究ではまず、短鎖脂肪酸の産生や短鎖脂肪酸産生菌の増加を介して、腸管のTregを誘導する難消化性多糖をスクリーニングする。次に、Treg誘導能を示した難消化性多糖が大腸炎モデルマウスの症状を改善するか検証する。また、マウスで効果が認められたものについては、ヒトのIBD発症予防への応用について検証するため、難消化性多糖を摂取する前後の健常人糞便における腸内細菌叢と短鎖脂肪酸濃度を調べる。

Outline of Final Research Achievements

In this study, we explored non-digestible polysaccharides that improve the intestinal environment and prevent the onset of colitis. Two of the four low viscosity water-soluble non-digestible polysaccharides (alpha-cyclodextrin and inulin), which are highly fermentable, promoted butyrate production and colonic Treg induction, thereby inhibiting the onset of experimental colitis in mice . Furthermore, highly viscous indigestible polysaccharides derived from cereal grains, such as β-glucan and arabinoxylan, increased butyrate-producing bacteria and colonic Treg, thereby suppressing the onset of experimental colitis in mice.

Academic Significance and Societal Importance of the Research Achievements

本研究は、これまで一緒くたに考えられてきた水溶性難消化性多糖の保健作用について、腸内微小環境への影響の観点からメスをいれたものである。結果として、腸内細菌組成の変化、代謝物である短鎖脂肪酸の質的・量的変化、大腸制御性T細胞の割合の変化などは摂取する難消化性多糖の種類によって異なり、疾患予防に対する有効性も異なることが明らかとなった。本研究成果は、基礎栄養学としての難消化性多糖による腸内環境への影響の理解に留まらず、炎症性腸疾患の新たな予防戦略の開発に貢献するものである。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (8 results)

All 2023 2022 2021

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (5 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Effect of soluble oat fiber on intestinal microenvironment and TNBS-induced colitis.2023

    • Author(s)
      Chudan S., Ishibashi R., Nishikawa M., Tabuchi Y., Nagai Y., Ikushiro S., Furusawa Y (Corresponding author).
    • Journal Title

      Food Funct

      Volume: 14 Issue: 4 Pages: 2188-2199

    • DOI

      10.1039/d2fo03396h

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Wheat-Derived Arabinoxylan on the Gut Microbiota Composition and Colonic Regulatory T Cells.2023

    • Author(s)
      Chudan S., Ishibashi R., Nishikawa M., Tabuchi Y., Nagai Y., Ikushiro S., Furusawa Y (Corresponding author).
    • Journal Title

      Molecules

      Volume: 28 Issue: 7 Pages: 3079-3079

    • DOI

      10.3390/molecules28073079

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Impact of Low‐Viscosity Soluble Dietary Fibers on Intestinal Microenvironment and Experimental Colitis: A Possible Preventive Application of Alpha‐Cyclodextrin in Intestinal Inflammation2022

    • Author(s)
      Yamanouchi Yuka、Chudan Seita、Ishibashi Riko、Ohue‐Kitano Ryuji、Nishikawa Miyu、Tabuchi Yoshiaki、Kimura Ikuo、Nagai Yoshinori、Ikushiro Shinichi、Furusawa Yukihiro
    • Journal Title

      Molecular Nutrition & Food Research

      Volume: 66 Issue: 22 Pages: 2200063-2200063

    • DOI

      10.1002/mnfr.202200063

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 腸内微小環境に影響を与える水溶性食物繊維の比較検討2022

    • Author(s)
      古澤之裕
    • Organizer
      第18回食品免疫学会学術大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 水溶性食物繊維による腸内環境変化と腸炎抑制効果の比較2022

    • Author(s)
      古澤之裕, 山之内祐香,中段晴太,石橋璃子,西川美宇, 長井良憲, 生城真一
    • Organizer
      第27回日本フードファクター学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] アルファシクロデキストリン摂取による腸内微小環境の変化と薬剤誘発性腸炎の抑制2022

    • Author(s)
      古澤之裕
    • Organizer
      第38回シクロデキストリンシンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] Commensal microbiota maintains gut homeostasis through its metabolic products and epigenetic modification2021

    • Author(s)
      Furusawa Y.
    • Organizer
      6th Toyama-Basel Joint Symposium 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 低粘性水溶性食物繊維による腸内微小環境の変動と実験的腸炎の抑制.2021

    • Author(s)
      古澤之裕
    • Organizer
      第75回日本栄養・食糧学会
    • Related Report
      2021 Research-status Report

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

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