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Oral dysbiosis increases a risk of hepatic carcinogenesis

Research Project

Project/Area Number 19K08361
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53010:Gastroenterology-related
Research InstitutionUniversity of Tsukuba

Principal Investigator

Mizokami Yuji  筑波大学, 医学医療系, 客員研究員 (70268556)

Co-Investigator(Kenkyū-buntansha) 鈴木 英雄  筑波大学, 医学医療系, 准教授 (00400672)
蕨 栄治  筑波大学, 医学医療系, 講師 (70396612)
内田 文彦  筑波大学, 医学医療系, 講師 (70736008)
岡田 浩介  筑波大学, 医学医療系, 准教授 (80757526)
正田 純一  筑波大学, 医学医療系, 教授 (90241827)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
KeywordsNASH / 歯周病 / Nrf2 / 遺伝子改変マウス / LPS / 歯周病菌 / 肝癌 / 肥満者 / 口腔内細菌叢 / 腸内細菌叢 / ゲノム解析 / 脂肪性肝炎 / エンドトキシン / 口腔-腸管-肝臓軸
Outline of Research at the Start

DKOマウスは「Gut-Liver Axis」をベースに,腸内細菌叢の異常とKeap1-Nrf2 pathwayの生体防御系の脆弱化により高齢期にNASHと肝癌を自然発症する.学術的独自性の高い本マウスを用いて基礎実験を展開し,歯周病菌感染がNASHと肝癌の発症を促進させるかどうかを検証し,その結果より,口腔内細菌叢の乱れ(dysbiosis)が「Oral-Gut-Liver Axis」を介してNASHと肝発癌NASHと肝発癌に関与するといった新しくコンセプトを構築することを目的とする.

Outline of Final Research Achievements

We fed WT mice, Nrf2-KO mice and macrophage-specific Nrf2 gene rescue mice which were generated based on Nrf2-KO mice, with a high-fat die coupled with P.g bacteria-derived LPS, and induced NASH. By comparing the phenotype of NASH, we studied the biological role of Nrf2 in periodontal disease bacteria-related NASH in the mice. Transcription factor Nrf2, especially Nrf2 in macrophage, inhibited hepatic inflammation and fibrogenesis, which in turn played a preventive role in the onset of NASH.

Academic Significance and Societal Importance of the Research Achievements

歯歯周病原菌のリポ多糖を介した腸肝連関という新しい視点から非アルコール性脂肪性肝疾患の進展機序を明らかにしようとした.高脂肪食とP.g 菌由来のLPS投与によるNASHモデルにおいて,Nrf2遺伝子の欠失は,肥満とインスリン抵抗性の改善を介さずに肝組織の炎症と線維化を悪化させた.これらの結果より,歯周病菌関連NASHにおいて,転写因子Nrf2,特にKupffer細胞を含むマクロファージにおけるNrf2は,防御的に機能することが示唆されことは意義が大きい.

Report

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

    (30 results)

All 2021 2020 2019

All Journal Article (15 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 15 results,  Open Access: 12 results) Presentation (15 results) (of which Invited: 1 results)

  • [Journal Article] Association of dietary habits and physical activity levels with non-alcoholic fatty liver disease with advanced liver fibrosis2021

    • Author(s)
      Yabe Y, Kim T, Oh S, Oshida N, Hasegawa N, Kamimaki T, Someya N, Shoda J
    • Journal Title

      Int J Environ Res and Public Health

      Volume: 18 Issue: 17 Pages: 8918-8918

    • DOI

      10.3390/ijerph18178918

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The prevalence and clinical implications of pancreatic fat accumulation identified during a medical check-up2021

    • Author(s)
      Okada K, Watahiki T, Horie M, Takayama T, Aida Y, To K, Shida T, Ishige K, Suzuki H, Nishiyama H, Shoda J
    • Journal Title

      Medicine

      Volume: 100 Issue: 41 Pages: e27487-e27487

    • DOI

      10.1097/md.0000000000027487

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prevention of non-alcoholic steatohepatitis by long-term exercise via the induction of phenotypic changes in Kupffer cells of hyperphagic obese mice2021

    • Author(s)
      Miura I, Komine S, Okada K, Wada S, Warabi E, Uchida F, Oh S, Suzuki H, Mizokami Y, Shoda J
    • Journal Title

      Physiol Reps

      Volume: 9 Issue: 9

    • DOI

      10.14814/phy2.14859

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Weight loss-independent benefits of exercise on liver steatosis and stiffness in Japanese men with NAFLD2021

    • Author(s)
      Oh S, Tsujimoto T, Kim B, Uchida F, Iizumi S, Isobe T, Sakae T, Tanaka K, Shoda J
    • Journal Title

      JHEP Reports

      Volume: 3 Pages: 100253-100253

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effect of a sulforaphane supplement on muscle soreness and damage induced by eccentric exercise in young adults: A pilot study2021

    • Author(s)
      Komine S, Miura I, Shoda J, TokinoyaK, Oh S, Miyashita N, Omori H
    • Journal Title

      Physiol Reps

      Volume: 9 Issue: 24 Pages: 15130-15130

    • DOI

      10.14814/phy2.15130

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of Exercise on the Oral Microbiota and Saliva of Patients with Non-Alcoholic Fatty Liver Disease2021

    • Author(s)
      Uchida F, Oh S, Shida T, Suzuki H, Yamagata K, Mizokami Y, Bukawa H, Tanaka K, Shoda J
    • Journal Title

      Int J Environ Res Public Health

      Volume: 18 Issue: 7 Pages: 3470-3470

    • DOI

      10.3390/ijerph18073470

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Endoscopic retrograde cholangiopancreatography and endoscopic ultrasound in children2021

    • Author(s)
      Tagawa M, Morita A, Imagawa K, Mizokami Y
    • Journal Title

      Dig Endosc

      Volume: 未定 Issue: 7 Pages: 1045-1058

    • DOI

      10.1111/den.13928

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Pathologically confirmed oesophageal involvement in idiopathic multicentric Castleman disease mimicking early oesophageal cancer2021

    • Author(s)
      Tsuboi H, Suzuki H, Akutsu D, Terasaki T, Okamoto S, Kondo Y, Matsumoto I, Mizokami Y, Sumida T
    • Journal Title

      Rheumatology

      Volume: 60 Issue: 2 Pages: 50-52

    • DOI

      10.1093/rheumatology/keaa431

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Current states of prevention of drug-induced gastroduodenal ulcer in real clinical practice: a cross-sectional study2020

    • Author(s)
      Iwamoto J, Murakami M, Monma T, Ueda H, Tamamushi M, Konishi N, Yara SI, Hirayama T, Ikegami T, Honda A, Mizokami Y
    • Journal Title

      Journal of Clinical Biochemistry and Nutrition

      Volume: 66 Issue: 2 Pages: 158-162

    • DOI

      10.3164/jcbn.19-66

    • NAID

      130007804498

    • ISSN
      0912-0009, 1880-5086
    • Year and Date
      2020-03-01
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Current status of proton pump inhibitor use in Japanese elderly patients with non-valvular atrial fibrillation: class FormattedString { value: A subanalysis of the ANAFIE Registry }2020

    • Author(s)
      Mizokami Y, Yamamoto T, Atarashi H, Yamashita T, Akao M, Ikeda T, Koretsune Y, Okumura K, Shimizu W, Tsutsui H, Toyoda K, Hirayama A, Yasaka M, Yamaguchi T, Teramukai S, Kimura T, Kaburagi J, Takita A, Inoue H
    • Journal Title

      PLoS One

      Volume: 15 Issue: 11 Pages: e0240859-e0240859

    • DOI

      10.1371/journal.pone.0240859

    • URL

      https://localhost/en/publications/4ed92a75-ff71-42a8-bf33-b403648da795

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Gender difference in development of steatohepatitis in <i>p62/Sqstm1 and Nrf2</i> double-knockout mice2020

    • Author(s)
      Watahiki T, Okada K, Warabi E, Nagaoka T, Suzuki H, Ishige K, Yanagawa T, Takahashi S, Mizokami Y, Tokushige K, Ariizumi SI, Yamamoto M, Shoda J
    • Journal Title

      Experimental Animals

      Volume: 69 Issue: 4 Pages: 395-406

    • DOI

      10.1538/expanim.20-0028

    • NAID

      130007938666

    • ISSN
      0007-5124, 1341-1357, 1881-7122
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The preventive effect of Qing Dai on bisphosphonate-induced gastric cellular injuries2019

    • Author(s)
      Yasuda Go、Ito Hiromu、Kurokawa Hiromi、Terasaki Masahiko、Suzuki Hideo、Mizokami Yuji、Matsui Hirofumi
    • Journal Title

      Journal of Clinical Biochemistry and Nutrition

      Volume: 64 Issue: 1 Pages: 45-51

    • DOI

      10.3164/jcbn.17-108

    • NAID

      130007542313

    • ISSN
      0912-0009, 1880-5086
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Influence of living environment during childhood on helicobacter pylori Infection in Japanese young adults.2019

    • Author(s)
      Ueno T, Suzuki H, Hirose M, Shida T, Ikezawa K, Matsui H, Mizokami Y, Yanaka A.
    • Journal Title

      Digestion

      Volume: 24 Issue: 6 Pages: 1-6

    • DOI

      10.1159/000502574

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Progressive reduction in skeletal muscle mass to visceral fat area ratio is associated with a worsening of the hepatic conditions of non-alcoholic fatty liver disease2019

    • Author(s)
      Shida T, Oshida N, Oh S, Okada K, Shoda J
    • Journal Title

      Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy

      Volume: 12 Pages: 495-503

    • DOI

      10.2147/dmso.s185705

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Urinary Levels of Titin-N Fragment, a Skeletal Muscle Damage Marker, are Increased in Subjects with Nonalcoholic Fatty Liver Disease2019

    • Author(s)
      Oshida Natsumi、Shida Takashi、Oh Sechang、Kim Taeho、Isobe Tomonori、Okamoto Yoshikazu、Kamimaki Takashi、Okada Kosuke、Suzuki Hideo、Ariizumi Shun-ichi、Yamamoto Masakazu、Shoda Junichi
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 19498-19498

    • DOI

      10.1038/s41598-019-56121-7

    • NAID

      120007132916

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 運動実践はKupffer細胞機能の改善と関連してNASHモデルp62遺伝子欠失マウスにおける脂肪性肝炎を改善する2021

    • Author(s)
      三浦 征,岡田 浩介,蕨 英治,正田 純一
    • Organizer
      第11回肥満と消化器疾患研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] p62およびNrf2遺伝子二重欠失マウスは,腸内細菌叢の変化に関連したlipopolysaccharide増加により脂肪性肝炎を自然発症する2021

    • Author(s)
      岡田 浩介,綿引 隆久,正田 純一
    • Organizer
      第107回日本消化器病学会総会
    • Related Report
      2021 Annual Research Report
  • [Presentation] NASH進行とNASH肝癌におけるautophagy調節因子p62の役割2021

    • Author(s)
      陶 経緯,綿引 隆久,岡田 浩介,石毛 和紀,鈴木 英雄,有泉 俊一,山本 雅一,正田 純一
    • Organizer
      第25回日本肝臓学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] レドックスナノ粒子 (RNP) はNASHモデルの肝線維化進展と肝発癌を抑止する2021

    • Author(s)
      綿引 隆久,岡田 浩介,正田 純一
    • Organizer
      第25回日本肝臓学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 骨格筋のp62は骨格筋機能を改善させ脂肪性肝炎の炎症・線維化を減弱する2021

    • Author(s)
      三浦 征,岡田 浩介,石井 亜紀子,正田 純一
    • Organizer
      第7回日本筋学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 歯周病に対する運動の影響―口腔内細菌叢および唾液分析2020

    • Author(s)
      内田 文彦、廣畠 広実、福澤 智、菅野 直美、 山縣 憲司、武川 寛樹
    • Organizer
      第65回日本口腔外科学会総会・学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 中年肥満男性の歯周病に対する運動療法の効果 口腔内細菌叢とメタゲノムの解析より2020

    • Author(s)
      内田 文彦、 志田 隆史、 大森 翔英、 呉 世昶、 福澤 智、 菅野 直美、 山縣 憲司、 鈴木 英雄、 正田 純一、 武川 寛樹
    • Organizer
      第74回日本口腔科学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] レドックスナノ粒子(RNP)はp62:Nrf2遺伝子二重欠失マウス脂肪性肝炎における線維化を抑止する2020

    • Author(s)
      綿引隆久,岡田浩介,正田純一
    • Organizer
      JDDW2020
    • Related Report
      2020 Research-status Report
  • [Presentation] p62は肝臓-脂肪組織の連関による脂肪酸代謝の制御を介してマウス脂肪性肝炎を防御する2020

    • Author(s)
      岡田浩介,綿引隆久,正田純一
    • Organizer
      第106回消化器病学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 継続的走運動は筋-肝連関を介して脂肪性肝炎の炎症・線維化を改善する2020

    • Author(s)
      三浦征,石井亜紀子,綿引隆久,岡田浩介,和田聖大,正田純一
    • Organizer
      第43回日本肝臓学会東部会
    • Related Report
      2020 Research-status Report
  • [Presentation] 胆管空腸吻合術後の肝内結石に対する治療の現状2019

    • Author(s)
      遠藤 壮登, 石毛 和紀, 長谷川 直之, 福田 邦明, 溝上 裕士
    • Organizer
      第61回日本消化器病学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 免疫チェックポイント阻害剤による肝障害に対する治療戦略2019

    • Author(s)
      長谷川 直之, 福田 邦明, 溝上 裕士
    • Organizer
      第23回日本肝臓学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 経鼻内視鏡の最前線 経鼻内視鏡発展の変遷と展望2019

    • Author(s)
      溝上裕士
    • Organizer
      第97回日本消化器内視鏡学会総会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 脂肪酸代謝に着目したマウス脂肪性肝炎におけるp62の役割2019

    • Author(s)
      岡田浩介, 石毛和紀,蕨 栄治,正田純一
    • Organizer
      第105回消化器病学会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] Lipophagy制御因子p62は,中性脂肪-脂肪酸代謝を介してマウス脂肪性肝炎を防御する2019

    • Author(s)
      岡田浩介, 石毛和紀,正田純一
    • Organizer
      第55回肝臓学会総会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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