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The impact of lipid composition alteration via beta-oxidation failure on the pathophysiological linkage between nonalcoholic steatohepatitis and sarcopenia

Research Project

Project/Area Number 17K09440
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Gastroenterology
Research InstitutionJuntendo University

Principal Investigator

Kon Kazuyoshi  順天堂大学, 医学部, 准教授 (30398672)

Co-Investigator(Kenkyū-buntansha) 池嶋 健一  順天堂大学, 医学部, 教授 (20317382)
李 賢哲  順天堂大学, 医学部, 助教 (30758321)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords非アルコール性脂肪肝炎 / 脂肪毒性 / ジェントロジー / サルコペニア / リピドミクス / 酸化ストレス / ヘパトカイン / 脂質代謝 / 肝線維化 / 非アルコール脂肪肝炎 / ユビキチン化 / ジエントロジー / ジェロントロジー / 脂質 / 老化 / 筋肝連関
Outline of Final Research Achievements

In this study, we demonstrated age-related exacerbation of steatohepatitis with activation of fibrogenesis through hepatic fatty acid degeneration and intracellular stress enhancement after high fat loading using aged mice + high-fat diet model. As an exacerbation mechanism, we revealed a decrease in polyunsaturated fatty acid groups in phospholipids in addition to a quantitative increase in neutral fat and decreased expression of SIRT1, PPARα and fatty acid desaturase. Aging plus high-fat diet also caused a decrease in skeletal muscle strength and a decrease in the fast/slow muscle ratio.
We elucidated the mechanism of age-related exacerbation of steatohepatitis/sarcopenia through liver-muscle axis following alteration of hepatic lipid metabolism.

Academic Significance and Societal Importance of the Research Achievements

非アルコール性脂肪肝炎(NASH)が加齢により悪化すること、NASHとサルコペニアの進行が相関することは疫学的研究で示されているが、機序はこれまで不明であった。さらに、超高齢化社会においてサルコペニアの予防は重要な社会的課題だが、フィジカルトレーニングのみでは十分な予防は達成できていなかった。
本研究は加齢に伴う脂質代謝の変調を介したNASHの病態増悪機序を証明にすることによって次世代のNASH治療のターゲットを明確にした。さらに、肝-筋連関を介したサルコペニアの進展機序を明らかにすることにより、肝病態コントロールを基軸としたサルコペニアの発症予防・治療を確立するための基礎的知見を示した。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (22 results)

All 2020 2019 2018 2017

All Journal Article (4 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (18 results) (of which Int'l Joint Research: 7 results)

  • [Journal Article] Aging exacerbates high‐fat diet‐induced steatohepatitis through alteration in hepatic lipid metabolism in mice2020

    • Author(s)
      Ishizuka Kei、Kon Kazuyoshi、Lee‐Okada Hyeon‐Cheol、Arai Kumiko、Uchiyama Akira、Yamashina Shunhei、Yokomizo Takehiko、Ikejima Kenichi
    • Journal Title

      Journal of Gastroenterology and Hepatology

      Volume: In press Issue: 8 Pages: 1437-1448

    • DOI

      10.1111/jgh.15006

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 特集 肝臓病学の未来-ウイルス性肝炎から脂肪肝と肝がんの時代へ NAFLD/NASH アルコール摂取量が脂肪肝に与えるインパクト2019

    • Author(s)
      今一義
    • Journal Title

      内科

      Volume: 123 Issue: 5 Pages: 1143-1146

    • DOI

      10.15106/j_naika123_1143

    • ISSN
      0022-1961, 2432-9452
    • Year and Date
      2019-05-01
    • Related Report
      2019 Annual Research Report
  • [Journal Article] Rifaximin prevents ethanol-induced liver injury in obese KK-Ay mice through modulation of small intestinal microbiota signature2019

    • Author(s)
      Kitagawa Ryuta、Kon Kazuyoshi、Uchiyama Akira、Arai Kumiko、Yamashina Shunhei、Kuwahara-Arai Kyoko、Kirikae Teruo、Ueno Takashi、Ikejima Kenichi
    • Journal Title

      American Journal of Physiology-Gastrointestinal and Liver Physiology

      Volume: 317 Issue: 5 Pages: G707-G715

    • DOI

      10.1152/ajpgi.00372.2018

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Chemical Chaperone 4‐Phenylbutyric Acid Prevents Alcohol‐Induced Liver Injury in Obese KK‐A y Mice2019

    • Author(s)
      Suzuki Maiko、Kon Kazuyoshi、Ikejima Kenichi、Arai Kumiko、Uchiyama Akira、Aoyama Tomonori、Yamashina Shunhei、Ueno Takashi、Watanabe Sumio
    • Journal Title

      Alcoholism: Clinical and Experimental Research

      Volume: 43 Issue: 4 Pages: 617-27

    • DOI

      10.1111/acer.13982

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Aging causes the exacerbation of dietary steatohepatitis accompanied by muscle weakness in mice.2019

    • Author(s)
      Ishizuka K, Kon K, Arai K, Uchiyama A, Yamashina S, Ikejima K.
    • Organizer
      Digestive Disease Week2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Endoplasmic reticulum stress and oxidative stress in alcoholic liver injury comorbid metabolic syndrome.2019

    • Author(s)
      Kon K, Suzuki M, Ikejima K.
    • Organizer
      the 17th Congress of the European Society for Biomedical Research on Alcoholism (ESBRA).
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The role of intestinal microbiota in alcoholic liver disease.2019

    • Author(s)
      Kitagawa R, Kon K, Ikejima K.
    • Organizer
      the 17th Congress of the European Society for Biomedical Research on Alcoholism (ESBRA).
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Age-related enhancement of cellular stresses and lipotoxicity exacerbates dietary steatohepatitis in mice.2019

    • Author(s)
      Ishizuka K, Kon K, Lee HC, Arai K, Uchiyama A, Fukuo H, Yamashina S, Yokomizo T, Ikejima K.
    • Organizer
      American Association for the Study of Liver Disease (AASLD) Annual Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高脂質負荷による脂肪性肝炎と脂質組成変化における加齢の影響.2019

    • Author(s)
      石塚敬、今一義、池嶋健一.
    • Organizer
      第105回日本消化器病学会総会.シンポジウム 8
    • Related Report
      2019 Annual Research Report
  • [Presentation] 加齢に伴う脂質代謝変化による食事誘発性脂肪性肝炎の増悪機序.2019

    • Author(s)
      石塚敬、今一義、池嶋健一.
    • Organizer
      第55回日本肝臓学会総会.パネルディスカッション 7-6
    • Related Report
      2019 Annual Research Report
  • [Presentation] リファキシミンによる小腸細菌叢の変化を介したアルコール性肝障害抑制効果:肥満KK-Ay マウスを用いた検討.2019

    • Author(s)
      北川隆太、今一義、池嶋健一.
    • Organizer
      第55回日本肝臓学会総会.ワークショップ8
    • Related Report
      2019 Annual Research Report
  • [Presentation] アルコール性肝炎発症における小胞体-ミトコンドリアストレスの関与.2019

    • Author(s)
      今一義、内山明、池嶋健一.
    • Organizer
      第19回抗加齢医学会総会.
    • Related Report
      2019 Annual Research Report
  • [Presentation] アルコール性肝障害マウスにおける小腸内細菌叢の変化と肝障害に与える影響.2019

    • Author(s)
      今一義、北川隆太、深田浩大、内山明、山科俊平、池嶋健一.
    • Organizer
      第56回日本消化器免疫学会総会.シンポジウム1
    • Related Report
      2019 Annual Research Report
  • [Presentation] リファキシミンを用いた腸内細菌叢の制御によるメタボリック+アルコール性脂肪肝炎の抑制効果.2019

    • Author(s)
      北川隆太、今一義、内山明、山科俊平、池嶋健一.
    • Organizer
      アルコール・アディクション医学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 加齢における脂肪肝炎の増悪と骨格筋萎縮の病態メカニズム2019

    • Author(s)
      石塚敬, 今一義, 内山明, 深田浩大, 山科俊平, 池嶋健一.
    • Organizer
      JDDW2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] KK-Ayマウスアルコール性肝炎モデルにおけるリファキシミンの小腸細菌叢再構築を介した肝障害抑制効果.2019

    • Author(s)
      北川隆太、今一義、池嶋健一.
    • Organizer
      JDDW2019 (第61回日本消化器病学会大会), ンポジウム7-3
    • Related Report
      2019 Annual Research Report
  • [Presentation] AGING CAUSES THE EXACERBATION OF DIETARY STEATOHEPATITIS ACCOMPANIED BY MUSCLE WEAKNESS IN MICE2019

    • Author(s)
      Kei Ishizuka, Kazuyoshi Kon, Kumiko Arai, Akira Uchiyama, Shunhei Yamashina, and Kenichi Ikejima
    • Organizer
      DDW 2019
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 脂肪性肝炎の肝内脂質組成変化における加齢の影響2019

    • Author(s)
      石塚 敬、今 一義、池嶋健一
    • Organizer
      第105回日本消化器病学会総会 シンポジウム8
    • Related Report
      2018 Research-status Report
  • [Presentation] Aging-dependent alterations in hepatic fatty acid metabolism exacerbate murine dietary steatohepatitis through enhancing lipotoxicity2018

    • Author(s)
      Kei Ishizuka, Kazuyoshi Kon, Kumiko Arai, Akira Uchiyama, Tomonori Aoyama, Shunhei Yamashina, and Kenichi Ikejima
    • Organizer
      AASLD 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 加齢による非アルコール性脂肪肝炎の増悪機序―高脂肪負荷高齢マウスを用いた検討―2018

    • Author(s)
      石塚敬、今一義、青山友則、内山明、山科俊平、池嶋健一
    • Organizer
      第22回日本肝臓学会大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 加齢による非アルコール性脂肪肝炎の増悪機序―高齢マウスを用いた検討―2018

    • Author(s)
      石塚敬、今一義、青山友則、内山明、山科俊平、池嶋健一、渡辺純夫
    • Organizer
      第104回 日本消化器病学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] Aging exacerbates high-fat diet-induced steatohepatitis through blunting of lipid metabolic response in mice2017

    • Author(s)
      Ishizuka K, Kon K, Ikejima K, Suzuki M, Arai K, Uchiyama A, Aoyama T, Yamashina S, Watanabe S.
    • Organizer
      AASLD annual meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2021-02-19  

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