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Relations of periodontal diseases to systemic diseases and involvement of degradation of bioactive peptides by oral bacterial peptidases

Research Project

Project/Area Number 16K11481
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Functional basic dentistry
Research InstitutionNagasaki University

Principal Investigator

OHARA-NEMOTO Yuko  長崎大学, 医歯薬学総合研究科(歯学系), 准教授 (10164667)

Co-Investigator(Kenkyū-buntansha) 根本 孝幸  長崎大学, 医歯薬学総合研究科(歯学系), 教授 (90164665)
下山 佑  岩手医科大学, 歯学部, 講師 (90453331)
馬場 友巳  長崎大学, 医歯薬学総合研究科(歯学系), 助教 (60189727)
小早川 健  長崎大学, 医歯薬学総合研究科(歯学系), 技術職員 (10153587)
木村 重信  関西女子短期大学, その他部局等, 教授 (10177917)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
KeywordsDPP4 / インクレチン / 歯周病 / 2型糖尿病 / インスリン / ペプチダーゼ / 全身疾患 / 口腔細菌 / 口腔細菌叢 / GLP-1 / 歯周病菌 / GIP / 血糖 / ジペプチジルペプチダーゼ / 生理活性ペプチド / 糖尿病
Outline of Final Research Achievements

Enzymatic parameters and substrate specificities of periodontopathic bacterial dipeptidyl peptidases (DPP)4, DPP5, and DPP7 were determined. Bacterial DPP4 degraded human and mouse incretin hormones (glucagon-like peptide-1 and glucose-dependent insulinotropic polypeptide). Administration of bacterial DPP4 to mouse decreased in concentrations of active glucagon-like peptide-1 and insulin in the blood, accompanied by a substantial elevation of postprandial hyperglycemia and delayed reduction of blood glucose. Databases search revealed that anaerobic Bacteroidetes bacteria possess the dpp4 genes, suggesting that a molecular mechanism of degradation of bioactive peptides by periodontopathic bacterial peptidases, which is possibly involved in the association between periodontal and systemic diseases.

Academic Significance and Societal Importance of the Research Achievements

我々が発見した新規ペプチダーゼ含む口腔細菌ペプチダーゼの基質特異性が確定し,酵素学的パラメーターが決定された。口腔細菌由来DPP4がヒトDPP4と同様にインスリン分泌誘導作用のある生理活性ペプチド(インクレチン,GLP-1,GIP)分解能があること示し,口腔細菌ペプチダーゼと血糖値調節について新たな知見が得られた。
概要に記した成果は,歯周病原性細菌に関係する歯学・医学分野での疾病予防と治療の観点から重要であるばかりでなく,ヒトでの新規のペプチド分解による制御系の発見に繋がる可能性があり,極めて意義のある研究である。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (19 results)

All 2018 2017 2016 Other

All Int'l Joint Research (4 results) Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Open Access: 7 results,  Acknowledgement Compliant: 1 results) Presentation (8 results) (of which Int'l Joint Research: 4 results)

  • [Int'l Joint Research] University of Vienna(Austria)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] European Molecular Biology Laboratory(France)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] ウィーン大学/Max F. Perutz研究所(オーストリア)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] ヨーロッパ分子生物学研究所(フランス)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Periodontopathic bacterial DPP4 as a risk factor for type 2 diabetes mellitus2018

    • Author(s)
      中里 茉那美,下山 佑,根本 優子,佐々木 大輔,根本 孝幸,佐々木 実,八重柏 隆
    • Journal Title

      Dental Journal of Iwate Medical University

      Volume: 43 Issue: 1 Pages: 48-60

    • DOI

      10.20663/iwateshigakukaishi.43.1_48

    • NAID

      130007396589

    • ISSN
      0385-1311, 2424-1822
    • Year and Date
      2018-05-25
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Distribution of dipeptidyl peptidase (DPP) 4, DPP5, DPP7, and DPP11 in human oral microbiota ? potent biomarkers indicating presence of periodontopathic bacteria2018

    • Author(s)
      Ohara-Nemoto Yuko、Shimoyama Yu、Nakasato Manami、Nishimata Haruka、Ishikawa Taichi、Sasaki Minoru、Kimura Shigenobu、Nemoto Takayuki K
    • Journal Title

      FEMS Microbiology Letters

      Volume: 365 Pages: 1-7

    • DOI

      10.1093/femsle/fny221

    • NAID

      120006987966

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Establishment of potent and specific synthetic substrate for dipeptidyl-peptidase 7.2018

    • Author(s)
      Nemoto TK, Ono T, Ohara-Nemoto Y.
    • Journal Title

      Anal Biochem

      Volume: 548 Pages: 78-81

    • DOI

      10.1016/j.ab.2018.02.008

    • NAID

      120006987355

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Identification of a new subtype of dipeptidyl peptidase 11 and a third group of the S46-family members specifically present in the genus Bacteroides.2018

    • Author(s)
      Nemoto TK, Bezerra GA, Ono T, Nishimata H, Fujiwara T, Ohara-Nemoto Y.
    • Journal Title

      Biochimie

      Volume: 147 Pages: 25-35

    • DOI

      10.1016/j.biochi.2017.10.015

    • NAID

      120006987398

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Degradation of Incretins and Modulation of Blood Glucose Levels by Periodontopathic Bacterial Dipeptidyl Peptidase 4.2017

    • Author(s)
      Ohara-Nemoto, Y., Nakasato, M., Shimoyama, Y., Baba, T., Kobayakawa, T., Ono, T., Yaegashi, T., Kimura, S., Nemoto, T.K.
    • Journal Title

      Infection and Immunity

      Volume: 85 Issue: 9

    • DOI

      10.1128/iai.00277-17

    • NAID

      120006987494

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Bacterial protease uses distinct thermodynamic signatures for substrate recognition.2017

    • Author(s)
      Bezerra, G. A., Ohara-Nemoto, Y., Fedosyuk, S., Cornaciu, I., Hoffmann, G., Round, A., Marquez, J. A., Nemoto, T.K., Djinovic-Carugo, K.
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 2848-2848

    • DOI

      10.1038/s41598-017-03220-y

    • NAID

      120006987515

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dominant prevalence of Porphyromonas gingivalis fimA types I and IV in healthy Japanese children.2017

    • Author(s)
      Shimoyama Y, Ohara-Nemoto Y, Kimura M, Tanaka M, Kimura S, and Nemoto TK.
    • Journal Title

      J Dent Sci.

      Volume: 印刷中 Issue: 3 Pages: 213-219

    • DOI

      10.1016/j.jds.2017.03.006

    • NAID

      120006987517

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Bacteroides属菌が有するS46ファミリージペプチジルペプチダーゼ2017

    • Author(s)
      根本優子,小野俊雄,根本孝幸
    • Organizer
      第90回日本細菌学会総会
    • Place of Presentation
      仙台国際センター(宮城県・仙台市)
    • Year and Date
      2017-03-19
    • Related Report
      2016 Research-status Report
  • [Presentation] S46 family dipeptidyl peptidases (DPPs) in the genus Bacteroides2017

    • Author(s)
      根本優子,小野俊雄,根本孝幸
    • Organizer
      第90回日本細菌学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] Porphyromonas gingivalis および Tannerella forsythia のジペプチジルペプチダーゼ4 活性とインクレチン分解能2017

    • Author(s)
      2.中里茉那美,根本優子,下山佑,木村重信,佐々木大輔,伊東俊太郎,佐々木実,八重柏隆
    • Organizer
      第60回春季日本歯周病学会学術大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 歯周病原性細菌アシルペプチジルオリゴペプチダーゼ(AOP)のアシルペプチド選択機構2017

    • Author(s)
      根本孝幸,小野俊雄,根本優子
    • Organizer
      第59回歯科基礎医学会学術大会・総会
    • Related Report
      2017 Research-status Report
  • [Presentation] Porphyromonas gingivalisのアミノ酸及びオリゴペプチド輸送系の解析2016

    • Author(s)
      根本優子,小早川健,馬場友巳,根本孝幸
    • Organizer
      第58回歯科基礎医学会学術大会・総会
    • Place of Presentation
      札幌コンベンションセンター(北海道・札幌市)
    • Year and Date
      2016-08-24
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Degradation of incretin by the prokaryotic dipeptidyl-peptidase 4 from Porphyromonas gingivalis.2016

    • Author(s)
      Shimoyama, Y., Ohara-Nemoto, Y., Nemoto, T.K., Nakasato, M., Yaegashi, T., Ishikawa, T., Sasaki, M., Kimura, S.
    • Organizer
      Microbe 2016
    • Place of Presentation
      ホ゛ストン(米国)
    • Year and Date
      2016-06-16
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Characterization of dipeptidyl-peptidase 4 from Tannerella forsythia.2016

    • Author(s)
      Nakasato, M., Shimoyama, Y., Ohara-Nemoto, Y., Nemoto, T.K., Takahashi, S., Ito, S., Sasaki, D., Yaegashi, T., Kimura, S.
    • Organizer
      Microbe 2016
    • Place of Presentation
      ホ゛ストン(米国)
    • Year and Date
      2016-06-16
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Porphyromonas sp. dipeptidyl peptidases 11 distinguish substrates from end products via distinct thermodynamic signatures.2016

    • Author(s)
      Bezerra, G. A., Ohara-Nemoto, Y., Fedosyuk, S., Cornaciu, I., Hoffmann, G., Marquez, J. A., Nemoto, T.K., Djinovic-Carugo, K.
    • Organizer
      EMBO Conference The biochemistry and chemistry of biocatalysis: From understanding to design
    • Place of Presentation
      オウル(フィンランド)
    • Year and Date
      2016-06-12
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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