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Analysis of the effect of gut microbiota on periodontitis

Research Project

Project/Area Number 19K21365
Project/Area Number (Other) 18H06274 (2018)
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund (2019)
Single-year Grants (2018)
Review Section 0907:Oral science and related fields
Research InstitutionNiigata University

Principal Investigator

Sato Keisuke  新潟大学, 医歯学総合病院, 医員 (80828905)

Project Period (FY) 2018-08-24 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords歯周炎 / 腸内細菌 / 糞便移植 / メタボローム / 歯周病 / 腸内細菌叢 / 全身疾患 / マウス実験的歯周炎
Outline of Research at the Start

歯周炎と全身性疾患の関連について過去に多くの報告がされてきたが、そのメカニズムについては未だ不明な点が多い。申請者はこれまでに歯周病原細菌口腔投与が腸内細菌叢の変動および腸管免疫応答の変化を介して全身性の炎症を誘導することを確認した。一方、腸内細菌叢の変動を介した全身性の炎症は歯周炎の発症・進行にも影響している可能性がある。本研究では、異なる腸内細菌叢を有するマウスを糞便移植により確立し、その後実験的歯周炎を惹起させることで、歯周炎の発症・進行に対する腸内細菌叢の影響とその関連メカニズムを解明することを目的とする。

Outline of Final Research Achievements

However periodontitis has been implicated as a risk factor for various systemic diseases, underlying mechanisms linking periodontitis and systemic diseases remain elusive. Therefore, the aim of this study is to investigate the effect of gut microbiota on periodontitis using fecal microbiota transplantation in combination with ligature-induced periodontitis in mice.Gut microbiota was isolated from feces of normal chow (NC)- and high-fat diet (HFD)- fed mice.
We found that changes of the gut but not oral microbiota composition were observed between HFD and NC group. The degree of bone destruction was significantly greater in HFD group. Serum endotoxin and IL-17 levels were not different among the groups. However, Serum metabolic profiles were different among the groups.
These results suggest that dysbiosis of gut microbiota could be a risk factor for periodontitis through modulation of responses to oral bacteria possibly by metabolites.

Academic Significance and Societal Importance of the Research Achievements

我々はこれまでに既存の歯周・全身疾患関連メカニズムとは全く異なる、歯周病原細菌による腸内細菌叢の変動を介して全身疾患のリスクが高まる説を世界に先駆けて報告している。本研究により、腸内細菌叢の変動が歯周炎の発症と進行に影響することが明らかとなれば、既存の歯周炎の病因論に大きなインパクトを与えると考えられる。腸内細菌叢の変動が歯周炎の病態に及ぼす影響とそのメカニズムが明らかとなれば、腸内環境を整えることが歯周炎の発症、進行の予防に対する新たな標的候補となる可能性が示唆される。これは既存の歯周病学進展の一助となり、その学術的・社会的意義は大きいと考える。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • Research Products

    (11 results)

All 2019

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (9 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] A novel mechanism linking periodontitis and rheumatoid arthritis2019

    • Author(s)
      Sato Keisuke、Yamazaki Kazuhisa
    • Journal Title

      Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology)

      Volume: 61 Issue: 3 Pages: 142-147

    • DOI

      10.2329/perio.61.142

    • NAID

      130007723756

    • ISSN
      0385-0110, 1880-408X
    • Year and Date
      2019-09-30
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Experimental arthritis and Porphyromonas gingivalis administration synergistically decrease bone regeneration in femoral cortical defects2019

    • Author(s)
      Okumura Go、Kondo Naoki、Sato Keisuke、Yamazaki Kazuhisa、Ohshima Hayato、Kawashima Hiroyuki、Ogose Akira、Endo Naoto
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 20031-20031

    • DOI

      10.1038/s41598-019-56265-6

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Dysbiosis of Gut microbiota aggravates experimental periodontitis.2019

    • Author(s)
      Sato K, Matsuda Y, Yamada-Hara M, Yokoji M, Tsuzuno T, Matsugishi A, Yamazaki K, Tabeta T, Yamazaki K.
    • Organizer
      97th General Session of the IADR
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dysbiosis of gut microbiome in Japanese patients with periodontitis2019

    • Author(s)
      Yamazaki K, Sato K, Nakajima T, Muyazawa H, Takahashi N, Yamada-Hara M, Yokoji M, Yamazaki K
    • Organizer
      97th General Session of the IADR
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 腸内細菌の変動が歯周炎の発症・進行に与える影響の解析2019

    • Author(s)
      佐藤圭祐、松川由実、原 実生、竹内麻衣、都野隆博、松岸 葵、山崎恭子、多部田康一、山崎和久
    • Organizer
      第62回春季日本歯周病学会学術大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Porphyromonas gingivalisがNASH病態に与える影響の解析2019

    • Author(s)
      山崎恭子、中島麻由佳、竹内麻衣、原 実生、都野隆博、松岸 葵、松川由実、佐藤圭祐、高橋直紀、多部田康一、山崎和久
    • Organizer
      第62回春季日本歯周病学会学術大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 歯周炎患者における腸内細菌叢の解析2019

    • Author(s)
      山崎恭子、中島貴子、宮沢春菜、伊藤晴江、佐藤圭祐、原 実生、竹内麻衣、高橋直紀、森田英利、須田 亙、服部正平、山崎和久
    • Organizer
      第23回腸内細菌学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 歯周炎患者唾液細菌叢が腸内細菌叢にあたえる影響の解析2019

    • Author(s)
      山崎恭子,中島貴子,宮沢春菜,伊藤晴江,佐藤圭祐,原 実生,竹内麻衣,高橋直紀,森田英利,須田 亙,服部正平,山崎和久
    • Organizer
      第62回秋季日本歯周病学会学術大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Porphyromonas gingivalisがNASH病態を進行させるメカニズムの解析2019

    • Author(s)
      山崎恭子、中島麻由佳、竹内麻衣、原 実生、都野隆博、松岸 葵、松川由実、佐藤圭祐、高橋直紀、多部田康一、山崎和久
    • Organizer
      日本歯科保存学会2019年度秋季学術大会(第151回)
    • Related Report
      2019 Annual Research Report
  • [Presentation] 腸内細菌の変動が歯周炎の発症・進行に与える影響の解析2019

    • Author(s)
      佐藤圭祐
    • Organizer
      第62回春季日本歯周病学会学術大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Dysbiosis of gut microbiota aggravates experimental periodontitis2019

    • Author(s)
      KEISUKE SATO
    • Organizer
      The 97th General Session of the IADR
    • Related Report
      2018 Annual Research Report

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Published: 2018-08-27   Modified: 2024-03-26  

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