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Identifying the Involvement of the Bacterium Persister as a Cause of Recurrent or Chronic Periodontal Disease

Research Project

Project/Area Number 22K17020
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 57020:Oral pathobiological science-related
Research InstitutionKyushu Dental College

Principal Investigator

Yamasaki Ryota  九州歯科大学, 歯学部, 助教 (70841998)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2022: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
KeywordsPersister / A. actinomycetemcomitans / 歯周病 / 過酸化水素 / 歯周病原性細菌 / 殺菌 / A.actinomycetemcomitans / バイオフィルム / 薬剤治療
Outline of Research at the Start

歯周病はおもに口腔病原細菌により惹起され、成人の多くが罹患している疾患である。本申請研究では、歯周病が持続する原因の1つは細菌が形成するPersisterであるとの仮説のもと、歯科治療で用いられている薬剤に対する歯周病原性細菌のPersisterの存在とそのリスクを明らかにし、治療・予防戦略の確立につながる研究を展開していく。

Outline of Final Research Achievements

Periodontal disease is primarily caused by pathogenic bacteria in the oral cavity, but no matter how many drugs are used to treat patients with periodontal disease, it is difficult to completely eliminate the oral pathogenic bacteria, which quickly multiply and pose a risk of recurrence after treatment. One of the causes of bacterial survival in response to drug therapy is “persister”. In periodontal disease, a small percentage of periodontopathogenic bacteria may survive drug treatment by forming persisters, which may lead to re-growth and persistence of the disease. The purpose of this study is to clarify the risk of Persister in drug therapy, to elucidate its mechanism, to find a method to eliminate it completely, and to obtain new knowledge on the control of chronicity and recurrence of periodontal disease.

Academic Significance and Societal Importance of the Research Achievements

成人の約8割が歯肉炎や歯周炎を患っているとされるほど、世界的にも最も多い感染症の一つとされる。さらに歯周病は慢性化することが問題となっているが、最も大きな要因は歯周病原細菌の存在である。これら歯周病原細菌が歯科治療後に再発することがしばしばあるが、その原因として「口腔細菌のPersister化」を提案する。Persisterという新たな概念をもとに、これまでとは異なる歯周病の治療や予防法を提唱し、歯周病の根治や再発を防ぐための効果的な方法を確立することで、歯周病の根治または歯周疾患リスクの低減という社会的意義をもつ。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (13 results)

All 2024 2023 2022

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (9 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results)

  • [Journal Article] Medicinal herbs, especially Hibiscus sabdariffa, inhibit oral pathogenic bacteria2024

    • Author(s)
      Takada Kazuya、Nakano Shizuki、Nishio Reina、Muku Daichi、Mochizuki Shinichi、Inui Inori、Okita Kaede、Koga Ayaka、Watanabe Koji、Yoshioka Yoshie、Ariyoshi Wataru、Yamasaki Ryota
    • Journal Title

      Journal of Oral Biosciences

      Volume: 66 Issue: 1 Pages: 179-187

    • DOI

      10.1016/j.job.2024.01.006

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Persister Cell Formation and Elevated lsrA and lsrC Gene Expression upon Hydrogen Peroxide Exposure in a Periodontal Pathogen Aggregatibacter actinomycetemcomitans2023

    • Author(s)
      Nakamura Yohei、Watanabe Koji、Yoshioka Yoshie、Ariyoshi Wataru、Yamasaki Ryota
    • Journal Title

      Microorganisms

      Volume: 11 Issue: 6 Pages: 1402-1402

    • DOI

      10.3390/microorganisms11061402

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Magnesium Hydroxide Nanoparticles Inhibit the Biofilm Formation of Cariogenic Microorganisms2023

    • Author(s)
      Okamoto Kentaro、Kudo Daisuke、Phuong Dao Nguyen Duy、Iwamoto Yoshihito、Watanabe Koji、Yoshioka Yoshie、Ariyoshi Wataru、Yamasaki Ryota
    • Journal Title

      Nanomaterials

      Volume: 13 Issue: 5 Pages: 864-864

    • DOI

      10.3390/nano13050864

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Quick and environmentally friendly sterilization process of dental instruments by radical vapor reactor2022

    • Author(s)
      Okita Kaede、Yamasaki Ryota、Nakamura Yohei、Sakakura Tatsuya、Kawano Aki、Takatsuji Yoshiyuki、Haruyama Tetsuya、Yoshioka Yoshie、Ariyoshi Wataru
    • Journal Title

      Process Biochemistry

      Volume: 113 Pages: 22-26

    • DOI

      10.1016/j.procbio.2021.12.014

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] Elucidation of the persistence formation mechanism of Aggregatibacter actinomycetemcomitans caused by hydrogen peroxide treatment2023

    • Author(s)
      Yohei Nakamura, Ryota Yamasaki, Yoshie Yoshioka, Wataru Ariyoshi
    • Organizer
      IAPD2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Persistence of oral pathogenic bacteria causing infective endocarditis to antibiotics2023

    • Author(s)
      Takada Kazuya, Ryota Yamasaki, Yoshie Yoshioka, Koji Watanabe1, Katura Saeki, Wataru Ariyoshi
    • Organizer
      IAPD2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 休眠・冬眠研究の最前線 細菌"Persister"と歯周病持続化の関連2023

    • Author(s)
      山崎 亮太, 中村 鷹平, 沖田 楓, 吉岡 香絵, 有吉 渉
    • Organizer
      第96回日本生化学会大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] マクロファージに貪食されたAggregatibacter actinomycetemcomitans Persisterの生理的動態2023

    • Author(s)
      沖田 楓、山﨑 亮太、中村 鷹平、吉岡 香絵、有吉 渉
    • Organizer
      第65回歯科基礎医学会学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] パン酵母β-グルカンによるStrepotococcus mutansバイオフィルムの形成抑制効果2023

    • Author(s)
      山﨑 亮太、吉岡 香絵、有吉 渉
    • Organizer
      第96回日本細菌学会
    • Related Report
      2022 Research-status Report
  • [Presentation] β-glucan from baker's yeast inhibits Streptococcus mutans biofilm2022

    • Author(s)
      Ryota Yamasaki, Yoshie Yoshioka, Wataru Ariyoshi
    • Organizer
      Asia-Pacific Conference 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 細菌“Persister”と歯周病持続化の関連2022

    • Author(s)
      山﨑 亮太、中村 鷹平、沖田 楓、吉岡 香絵、有吉 渉
    • Organizer
      九州微生物研究フォーラム 2022
    • Related Report
      2022 Research-status Report
  • [Presentation] Elucidation of the persistence formation mechanism of Aggregatibacter actinomycetemcomitans caused by hydrogen peroxide treatment2022

    • Author(s)
      Yohei Nakamura, Ryota Yamasaki, Wataru Ariyoshi, Yoshie Yoshioka
    • Organizer
      Asia-Pacific Conference 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Physiological dynamics of Aggregatibacter actinomycetemcomitans Persister phagocytosed by macrophages2022

    • Author(s)
      Kaede Okita, Ryota Yamasaki, Yohei Nakamura, Yoshie Yoshioka, Wataru Ariyoshi
    • Organizer
      Asia-Pacific Conference 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research

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Published: 2022-04-19   Modified: 2025-01-30  

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