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Identification of functions related to oral bacteria colonization

Research Project

Project/Area Number 19K21384
Project/Area Number (Other) 18H06296 (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 InstitutionKyushu University

Principal Investigator

Kageyama Shinya  九州大学, 歯学研究院, 助教 (90822495)

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乳幼児 / 口腔マイクロバイオーム / 定着 / 成熟 / 16S rRNA / ロングリードシークエンサー / メタゲノム
Outline of Research at the Start

口腔や全身の健康に口腔常在細菌叢 (マイクロバイオーム) が影響していることが明らかとなってきている。生後様々な細菌種に曝露されていく中で、ヒト口腔に固有の細菌種が定着することから、環境適応に必要な機能を持つ細菌種が選択的に定着していることが予想される。本研究では、細菌種構成が急激に多様化する乳幼児期の口腔マイクロバイオームの遺伝子群を調べ、口腔常在細菌の定着に関わる機能を網羅的に同定する。本研究の結果は、口腔常在細菌の定着メカニズム解明の足がかりとなり、さらには口腔マイクロバイオームの細菌種構成を制御し誘導することで疾患発症を予防する、新しい歯科治療法につながる可能性を秘めている。

Outline of Final Research Achievements

In this study, we found that drastic compositional shifts in oral microbiota occurred by the age of 2 years and bacterial diversity and overall bacterial composition reached levels comparable to those in adults. We also found bacterial strains that belonged to same species but showed quite different behavior in these period. These results may be helpful for elucidation of colonization mechanism of oral bacteria and preventing the development of various diseases associated with oral microbiota throughout life.

Academic Significance and Societal Importance of the Research Achievements

口腔マイクロバイオームが全身の健康に大きく影響することから、常在細菌定着のメカニズムを明らかにし、マイクロバイオーム形成を制御・誘導することで、疾患発症を予防することができると考えられる。本研究の結果は、常在細菌定着のメカニズム解明の基盤となり、口腔マイクロバイオームをターゲットにした新たな治療法の開発につながる点で社会的意義は大きい。

Report

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

    (11 results)

All 2019 2018

All Journal Article (4 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Transition of Bacterial Diversity and Composition in Tongue Microbiota during the First Two Years of Life2019

    • Author(s)
      Kageyama Shinya、Asakawa Mikari、Takeshita Toru、Ihara Yukari、Kanno Shunsuke、Hara Toshiro、Takahashi Ichiro、Yamashita Yoshihisa
    • Journal Title

      mSphere

      Volume: 4 Issue: 3

    • DOI

      10.1128/msphere.00187-19

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characteristics of the salivary microbiota in patients with various digestive tract cancers.2019

    • Author(s)
      Kageyama S, Takeshita T, Takeuchi K, Asakawa M, Matsumi R, Furuta M, Shibata Y, Nagai K, Ikebe M,Morita M, Masuda M, Toh Y, Kiyohara Y, Ninomiya T,Yamashita Y.
    • Journal Title

      Front Microbiol.

      Volume: 10 Pages: 1780-1780

    • DOI

      10.3389/fmicb.2019.01780

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 舌苔細菌叢と誤嚥性肺炎2019

    • Author(s)
      山下喜久、影山伸哉
    • Journal Title

      感染症

      Volume: 49

    • Related Report
      2019 Annual Research Report
  • [Journal Article] 嚥下されている口腔常在微生物叢の構成と健康状態との関連2019

    • Author(s)
      竹下徹、影山伸哉、山下喜久
    • Journal Title

      日本嫌気性菌感染症学会雑誌

      Volume: 49 Pages: 51-55

    • NAID

      40022752983

    • Related Report
      2019 Annual Research Report
  • [Presentation] Association of Oral Microbiota with Digestive Tract Cancers2019

    • Author(s)
      Kageyama S, Takeshita T, Asakawa M, Matsumi R, Takeuchi K, Nagai K, Morita M, Masuda M, Toh Y, Ninomiya T, Kiyohara Y, Yamashita Y
    • Organizer
      The 97th IADR General Session & Exhibition
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Identification of distinct bacterial species in the salivary microbiota of digestive tract cancer patients2019

    • Author(s)
      Kageyama S
    • Organizer
      第61回歯科基礎医学会学術大会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 消化管がん患者の唾液マイクロバイオームに特徴的な細菌種の同定2019

    • Author(s)
      影山伸哉、竹下徹、竹内研時、朝川美加李、古田美智子、柴田幸江、山下喜久
    • Organizer
      第69回日本口腔衛生学会・総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 小学校でのフッ化物洗口の経験と成人のう蝕との関係2019

    • Author(s)
      古田美智子、竹内研時、竹下徹、須磨紫乃、影山伸哉、朝川美加李、奥菜央理、黒江慧、高尾直宏、柴田幸江、山下喜久
    • Organizer
      第41回九州口腔衛生学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] A PROSPECTIVE COHORT STUDY FOR THE DEVELOPMENT OF ORAL MICROBIOTA IN INFANCY2019

    • Author(s)
      Yamashita Y, Kageyama S, Asakawa M, Takeshita T, Ihara Y, Kanno S, Hara T, Takahashi I
    • Organizer
      The 7th World Congress on Targeting Microbiota
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Identification of initial colonizing bacteria in dental plaques from young adults using full-length 16S rRNA gene sequencing2019

    • Author(s)
      Takeshita T, Kageyama S, Asakawa M, Shibata Y, Yamashita Y
    • Organizer
      第61回歯科基礎医学会学術大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 乳幼児の口腔マイクロバイオームの多様性と細菌構成の経時変化2018

    • Author(s)
      影山伸哉、竹下徹、朝川美加李、柴田幸江、山下喜久
    • Organizer
      第60回歯科基礎医学会学術大会
    • Related Report
      2018 Annual Research Report

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

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