• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Dysregulation of intestinal homeostasis by ammonia

Research Project

Project/Area Number 19H04052
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 59040:Nutrition science and health science-related
Research InstitutionHiroshima University

Principal Investigator

Suzuki Takuya  広島大学, 統合生命科学研究科(生), 教授 (30526695)

Co-Investigator(Kenkyū-buntansha) 井上 亮  摂南大学, 農学部, 教授 (70443926)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2021: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2020: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Keywords腸管バリア / アンモニア / タイトジャンクション / 短鎖脂肪酸 / ミトコンドリア / エピジェネティクス
Outline of Research at the Start

腸管は、大量の異物が流れ込む場であるため、それらの侵入を防ぐバリアの最前線を担っている。本研究は、腸管上皮のエピジェネティクス制御機構に着眼し、腸内細菌の主要な代謝産物であるアンモニアによる遺伝子発現のON/OFF制御から、腸管の恒常性の破綻のメカニズムを解明する。さらに、そのアンモニア蓄積に関わる食習慣と腸内フローラの特徴を明らかにし、それに基づいた食事介入による予防手段を開発する。

Outline of Final Research Achievements

The intestinal tract is the front line of biological defense (barrier) that prevents the entry of large numbers of foreign substances into the intestine. When the intestinal barrier is out of control, it leads to various inflammation-based diseases. The purpose of this study was to clarify the mechanism of disruption of intestinal homeostasis by ammonia, a major metabolite of intestinal bacteria. A series of studies revealed that ammonia accumulated abnormally in the intestinal tract damages tight junctions, the main structure of the intestinal barrier, and that this effect is caused by ammonia damaging the mitochondrial function of intestinal epithelial cells and causing oxidative stress. The results of this study demonstrate a new mechanism of intestinal barrier regulation.

Translated with www.DeepL.com/Translator (free version)

Academic Significance and Societal Importance of the Research Achievements

腸管バリアの損傷は、炎症性腸疾患だけでなく、代謝性疾患、腎臓病、自閉症スペクトラムなど、様々な疾患の発症や進展に関わることが明らかになり、新たな治療ターゲットとしても注目されてきている。本研究は、アンモニアが腸管バリアのネガティブレギュレータであることを見出し、その作用機序を明らかにした。広く人の研究に貢献しうることが考えられる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (42 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (7 results) Journal Article (12 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 12 results,  Open Access: 5 results) Presentation (22 results) (of which Int'l Joint Research: 3 results,  Invited: 5 results) Book (1 results)

  • [Int'l Joint Research] Universitas Gadjah Mada(インドネシア)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Dalat University(ベトナム)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] University of Malawi(マラウイ)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Dalat University(ベトナム)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] University of Malawi(マラウイ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Ho Chi Minh University of Food Industry(ベトナム)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] University of Tennessee(米国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Ammonia impairs tight junction barriers by inducing mitochondrial dysfunction in Caco-2 cells2021

    • Author(s)
      Yokoo K, Yamamoto Y, Suzuki T.
    • Journal Title

      FASEB J

      Volume: 35 Issue: 11

    • DOI

      10.1096/fj.202100758r

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 3,5,7,3',4'-Pentamethoxyflavone Enhances the Barrier Function through Transcriptional Regulation of the Tight Junction in Human Intestinal Caco-2 Cells2021

    • Author(s)
      Mayangsari Y, Sugimachi N, Xu W, Mano C, Tanaka Y, Ueda O, Sakuta T, Suzuki Y, Yamamoto Y, Suzuki T
    • Journal Title

      J Agric Food Chem

      Volume: 69 Issue: 35 Pages: 10174-10183

    • DOI

      10.1021/acs.jafc.1c04295

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Curcumin increases heat shock protein 70 expression via different signaling pathways in intestinal epithelial cells2021

    • Author(s)
      Guo M, Xu W, Yamamoto Y, Suzuki T.
    • Journal Title

      Arch Biochem Biophys

      Volume: 15 Pages: 108938-108938

    • DOI

      10.1016/j.abb.2021.108938

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Citrus limon Peel Powder Reduces Intestinal Barrier Defects and Inflammation in a Colitic Murine Experimental Model2021

    • Author(s)
      Tinh Nguyen Thi Thanh、Sitolo Gertrude Cynthia、Yamamoto Yoshinari、Suzuki Takuya
    • Journal Title

      Foods

      Volume: 10 Issue: 2 Pages: 240-240

    • DOI

      10.3390/foods10020240

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Hydrogen sulfide suppresses the proliferation of intestinal epithelial cells through cell cycle arrest2021

    • Author(s)
      Xu Wenxi、Watanabe Kenji、Mizukami Yoichi、Yamamoto Yoshinari、Suzuki Takuya
    • Journal Title

      Archives of Biochemistry and Biophysics

      Volume: 712 Pages: 109044-109044

    • DOI

      10.1016/j.abb.2021.109044

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Propionate and Dietary Fermentable Fibers Upregulate Intestinal Heat Shock protein70 in Intestinal Caco-2 Cells and Mouse Colon2021

    • Author(s)
      Adesina PA, Isayama K, Sitolo GC, Yamamoto Y, Suzuki T.
    • Journal Title

      J Agric Food Chem

      Volume: 69 Issue: 30 Pages: 8460-8460

    • DOI

      10.1021/acs.jafc.1c03036

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 5,7-Dimethoxyflavone enhances barrier function by increasing occludin and reducing claudin-2 in human intestinal Caco-2 cells2021

    • Author(s)
      Mayangsari Y, Okudaira M, Mano C, Tanaka Y, Ueda O, Sakuta T, Suzuki Y, Yamamoto Y, Suzuki T
    • Journal Title

      Journal of Functional Foods

      Volume: 85 Pages: 104641-104641

    • DOI

      10.1016/j.jff.2021.104641

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Fermentable fibers upregulate suppressor of cytokine signaling1 in the colon of mice and intestinal Caco-2 cells through butyrate production2020

    • Author(s)
      Sitolo Gertrude Cynthia、Mitarai Aya、Adesina Precious Adedayo、Yamamoto Yoshinari、Suzuki Takuya
    • Journal Title

      Bioscience, Biotechnology, and Biochemistry

      Volume: 84 Issue: 11 Pages: 2337-2346

    • DOI

      10.1080/09168451.2020.1798212

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Lactobacillus pentosus strain S-PT84 improves steatohepatitis by maintaining gut permeability2020

    • Author(s)
      Sakai Yuriko、Arie Hideyuki、Ni Yinhua、Zhuge Fen、Xu Liang、Chen Guanliang、Nagata Naoto、Suzuki Takuya、Kaneko Shuichi、Ota Tsuguhito、Nagashimada Mayumi
    • Journal Title

      Journal of Endocrinology

      Volume: 247 Issue: 2 Pages: 169-181

    • DOI

      10.1530/joe-20-0105

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Regulation of the intestinal barrier by nutrients: The role of tight junctions2020

    • Author(s)
      Suzuki Takuya
    • Journal Title

      Animal Science Journal

      Volume: 91 Issue: 1

    • DOI

      10.1111/asj.13357

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 腸腎連関と食物繊維-腸管バリアの関わり-2020

    • Author(s)
      鈴木卓弥
    • Journal Title

      ルミナコイド研究

      Volume: 24 Pages: 1-9

    • NAID

      40022308224

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 乳酸菌Leuconostoc mesenteroides NTM048株が産生する菌体外多糖は乾癬モデルマウスの症状を軽減する2020

    • Author(s)
      畑堀翔,中野智裕,久景子,米島靖記,鈴木卓弥
    • Journal Title

      ルミナコイド研究

      Volume: 24 Pages: 29-37

    • NAID

      40022308257

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] 5,7-ジメトキシフラボンは、ヒト腸管上皮Caco-2細胞のオクルディンを増加、クローディン-2を減少させてバリア機能を高める2022

    • Author(s)
      ユニカ・マヤングサリ、真野 千夏、作田 智洋、山本 祥也、鈴木 卓弥
    • Organizer
      日本農芸化学会2022年京都大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Akkermansia muciniphilaの摂取はマウスの乾癬症状を軽減する2021

    • Author(s)
      小川 知紗、山本 祥也、鈴木 卓弥
    • Organizer
      日本栄養食糧学会中四国支部大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 食物繊維による腸管保護作用とその作用機序2021

    • Author(s)
      鈴木卓弥
    • Organizer
      日本栄養食糧学会中四国支部大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 腸管上皮ヒートショックプロテイン70(HSP70)発現への短鎖脂肪酸による影響2021

    • Author(s)
      アデシナ・プレシャス・アデダヨ、山本 祥也、鈴木 卓弥
    • Organizer
      日本食物繊維学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] グァー豆由来食物繊維による腸管保護作用に関する研究2021

    • Author(s)
      鈴木卓弥
    • Organizer
      第3回 抗酸化・機能研究会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Hydrogen sulfide suppresses the proliferation of intestinal epithelial cells through cell-cycle arrest2021

    • Author(s)
      Xu W, Yamamoto Y, Suzuki T.
    • Organizer
      ASCB|EMBO Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] プロピオン酸は腸管上皮Caco-2 細胞の内皮細胞選択的 接着分子の発現を高める2021

    • Author(s)
      諌山 佳奈,山本 祥也,鈴木 卓弥
    • Organizer
      日本農芸化学会 2021年度大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] IgA 誘導におけるClass A CpG オリゴDNA のアジュバ ント効果2021

    • Author(s)
      山本 祥也,大舘 佳歩,鈴木 卓弥
    • Organizer
      日本農芸化学会 2021年度大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 乳酸菌Leuconostoc mesenteroides NTM048 の摂取は マウスの乾癬症状を軽減する2021

    • Author(s)
      小川 知紗,井上 亮,久 景子,米島 靖記,山本 祥也, 鈴木 卓弥
    • Organizer
      日本農芸化学会 2021年度大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Hydrogen sulfide suppresses the proliferation of intestinal epithelial cells through cell-cycle arrest2021

    • Author(s)
      Xu Wenxi,Yamamoto Yoshinari,Suzuki Takuya
    • Organizer
      日本農芸化学会 2021年度大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 腸管タイトジャンクション重要性と食品成分による制御2020

    • Author(s)
      鈴木卓弥
    • Organizer
      酪農科学シンポジウム2020
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 酢酸は腸管上皮の細胞保護タンパク質 HSP27 の発現を高める2020

    • Author(s)
      武田奈々,山本祥也, 鈴木卓弥
    • Organizer
      第 53 回 日本栄養 食糧学会 中国 四国支部大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 低タンパク質食はマウス腸管上皮のタイトジャンクション発現を減少させる2020

    • Author(s)
      井上雄紀,山本祥也,鈴木卓弥
    • Organizer
      第 53 回 日本栄養 食糧学会 中国 四国支部大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] クルクミンは細胞保護タンパク質 HSP70 の発現を高める2020

    • Author(s)
      郭名祖,山本祥也,鈴木卓弥
    • Organizer
      第 53 回 日本栄養 食糧学会 中国 四国支部大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] プロピオン酸は大腸上皮のヒートショックプロテイン70(HSP70)発現を高める2020

    • Author(s)
      Adesina Precious Adedayo,山本 祥也,鈴木 卓弥
    • Organizer
      日本食物繊維学会第25回学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Dietary fermentable fibers reduce the chronic kidney disease through protecting intestinal barrier2019

    • Author(s)
      Tran Van Hung, Takuya Suzuki
    • Organizer
      International Medicine & Health Science Congress
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 腸管上皮バリアの制御に関わる新たな腸内細菌代謝物の探索2019

    • Author(s)
      松本徹也、山本祥也、鈴木卓弥
    • Organizer
      2019年度ハインドガットクラブジャパンシンポジウム
    • Related Report
      2019 Annual Research Report
  • [Presentation] Dietary fermentable fibers increase intestinal heat shock protein70 through short chain fatty acids production2019

    • Author(s)
      Adesina Precious Adedayo, Takuya Suzuki
    • Organizer
      ICoFF2019/ISNFF2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高濃度の腸内アンモニアは腸管上皮バリアを損傷する2019

    • Author(s)
      横尾佳奈,山本祥也,鈴木卓弥
    • Organizer
      2019年度日本食物繊維学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Leuconostoc mesenteroides NTM048株の摂取は 乾癬モデルマウスの症状を軽減する2019

    • Author(s)
      小川知紗,久景子,米島靖記,山本祥也,鈴木卓弥
    • Organizer
      2019年度日本食物繊維学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 腸腎連関と食物繊維 -腸管バリアとの関わり-2019

    • Author(s)
      鈴木卓弥
    • Organizer
      2019年度日本食物繊維学会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 慢性腎不全と食物繊維-腸管上皮バリアの関わり2019

    • Author(s)
      鈴木卓弥
    • Organizer
      2019年度日本食品科学工学会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Book] 腸内細菌―宿主のクロストークと食事要因 第3章2019

    • Author(s)
      鈴木卓弥
    • Total Pages
      264
    • Publisher
      建帛社
    • ISBN
      9784767962115
    • Related Report
      2019 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2023-12-25  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi