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2007 Fiscal Year Annual Research Report

歯肉上皮細胞によるP.gingivalis殺菌機構と歯周病感受性との関連の解析

Research Project

Project/Area Number 17390559
Research InstitutionOsaka University

Principal Investigator

天野 敦雄  Osaka University, 歯学研究科, 教授 (50193024)

Co-Investigator(Kenkyū-buntansha) 河合 伸治  大阪大学, 歯学研究科, 助教 (40362678)
Keywords歯学 / 細菌 / 感染症 / 細胞・組織 / シグナル伝達
Research Abstract

Porphyromonas gingivalisの宿主細胞内侵入経路および、細胞内侵入後の同菌の細胞内動態につき検討を加えた。その結果、下記3つの知見が得られた。
1.P.gingivalisの細胞侵入に関与する宿主因子は、リピッドラフト、□□□1インテグリン、small-GTPaseのRac1、アクチン、微小管の他アクチンの再構築やエンドサイトーシスに関わる分子であることが示された。
2.エンドサイトーシス経路を利用して細胞内に侵入したP.gingivalisは、一部は後期エンドソームに包まれたまま分解されてしまうが、一部は初期エンドソームから脱出し、細胞質内に留まる菌と、オートファジーによって殺される菌とがあることが示された。この違いが何故起こるのかは不明であり、今後の研究課題である。
3.P.gingivalisの細胞侵入に不可欠な線毛には6つの遺伝子多型が存在し、II型線毛遺伝子をもつ菌株は効率よく歯周細胞に侵入し、強力な細胞機能傷害と細胞死を引き起こすことを示した。

  • Research Products

    (28 results)

All 2008 2007

All Journal Article (17 results) (of which Peer Reviewed: 16 results) Presentation (10 results) Book (1 results)

  • [Journal Article] Inflammatory responses of gingival epithelial cells stimulated with Porphyromonas gingivalis vesicles are inhibited by hop-associated polyphenols.2008

    • Author(s)
      Kou Y, et. al.
    • Journal Title

      Journal of Periodontology 79(1)

      Pages: 174-180

    • Peer Reviewed
  • [Journal Article] Heterogenic virulence and related factors among clinical isolates of Porphyromonas gingivalis with type II timbriae.2008

    • Author(s)
      Inaba H, et. al.
    • Journal Title

      Oral Microbiology and Immunology 23(1)

      Pages: 29-35

    • Peer Reviewed
  • [Journal Article] Signaling pathways in osteoblast proinflammatory responses to infection by Porphyromonas gingivalis.2008

    • Author(s)
      Ohno T, et. al.
    • Journal Title

      Oral Microbiology and Immunology 23(in press)

    • Peer Reviewed
  • [Journal Article] Porphyromonas gingivalis gingipains cause Gl arrest in osteoblastic/stromal cells.2008

    • Author(s)
      Kato T, et. al.
    • Journal Title

      Oral Microbiology and Immunology (in press)

    • Peer Reviewed
  • [Journal Article] Distribution of Porphyromonas gingivalis fimA genotypes in cardiovascular specimens from Japanese patients.2008

    • Author(s)
      Nakano K, et. al.
    • Journal Title

      Oral Microbiology and Immunology (in press)

    • Peer Reviewed
  • [Journal Article] Molecular interaction of alanine-rich and proline-rich regions of cell surface protein antigen PAc in Streptococcus mutans.2008

    • Author(s)
      Matsumoto-Nakano M, et. al.
    • Journal Title

      Oral Microbiology and Immunology (in press)

    • Peer Reviewed
  • [Journal Article] Cellular motility of Down syndrome gingival fibroblasts susceptible to impairment by Porphyromonas gingivalis invasion.2008

    • Author(s)
      Murakami J, et. al.
    • Journal Title

      Journal of Periodontology (in press)

    • Peer Reviewed
  • [Journal Article] P. gingivalis accelerates gingival epithelial cell progression through the cell cycle.2008

    • Author(s)
      Kuboniwa M, et. al.
    • Journal Title

      Microbes and Infection (in press)

    • Peer Reviewed
  • [Journal Article] Relationship of Porphyromonas gingivalis with glycemic level in patientswith type 2 diabetes following periodontal treatment.2008

    • Author(s)
      Makiura N, et. al.
    • Journal Title

      Oral Microbiology and Immunology (in press)

    • Peer Reviewed
  • [Journal Article] Identification of hop polyphenolic components which inhibit prostaglandin E_2 production by gingival epithelial cells stimulated with periodontal pathogen.2008

    • Author(s)
      Inaba H, et. al.
    • Journal Title

      Biological & Pharmaceutical Bulletin (in press)

    • Peer Reviewed
  • [Journal Article] Upregulation of S100 calcium-binding protein by periodontal pathogen. Porphyromonas gingivalis, is the critical cause of intimal hyperplasia in the aorta.2008

    • Author(s)
      Hokamura K, et. al.
    • Journal Title

      Circulation (in press)

    • Peer Reviewed
  • [Journal Article] Serotype distribution of Streptococcus mutans a pathogen of dental caries in cardiovascular specimens from Japanese patients2007

    • Author(s)
      Nakano K, et. al.
    • Journal Title

      Journal of Medical Microbiology 56(4)

      Pages: 551-556

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Maturation of fimbria precursor protein by exogenous gingipains in Porphyromonas gingivalis gingipain-null mutant.2007

    • Author(s)
      Kato T, et. al.
    • Journal Title

      FEMS Microbiology Letters 273

      Pages: 96-102

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Zinc-finger transcription factor Odd-skipped related 2 is one of the regulators in osteoblast proliferation and bone formation.2007

    • Author(s)
      Kawai S, et. al.
    • Journal Title

      The Journal of Bone and Mineral Research 22(9)

      Pages: 1362-1372

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] Disruption of epithelial barrier and impairment of cellular function by Porphyromonas gingivalis.2007

    • Author(s)
      Amano A
    • Journal Title

      Frontiers in Bioscience 12

      Pages: 3965-3974

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Journal Article] 糖尿病と歯科骨粗鬆症2007

    • Author(s)
      天野敦雄、河合伸治
    • Journal Title

      CLINICAL CALCIUM 17(2)

      Pages: 186-191

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Detection of novel serotype k Streptococcus mutans in infective endocarditis patients.2007

    • Author(s)
      Nakano K, et. al.
    • Journal Title

      Journal of Medical Microbiology 56(10)

      Pages: 1413-1415

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
  • [Presentation] Sharing of roles by cellular α5β1 integrin and lipid rafts to internalize Porphyromonas gingivlis2007

    • Author(s)
      Furuta N, et. al.
    • Organizer
      International symposium "Membrane Traffic"
    • Place of Presentation
      淡路島
    • Year and Date
      2007-12-26
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Starategy of Porphyromonas gingivalis for periodontal destruction.2007

    • Author(s)
      Amano A
    • Organizer
      Osaka University-UCSF Joint Symposium in San Francisco
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2007-11-28
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] ビールホップポリフェノールによる歯周炎症の抑制2007

    • Author(s)
      天野敦雄, 他
    • Organizer
      第24回日本障害者歯科学会学術大会
    • Place of Presentation
      長崎市
    • Year and Date
      2007-11-24
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] 歯肉肥大発症因子のDNAマイクロアレイ解析2007

    • Author(s)
      加藤隆大, 他
    • Organizer
      第24回日本障害者歯科学会学術大会
    • Place of Presentation
      長崎市
    • Year and Date
      2007-11-24
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Effect of genotypes of Porphyromonas gingivalis fimbriae on biofilm formation2007

    • Author(s)
      Kuboniwa M, et. al.
    • Organizer
      55th Annual Meeting of Japanese Association for Dental Research
    • Place of Presentation
      横浜
    • Year and Date
      2007-11-17
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Odd-skipped related 2 functions in cell proliferation2007

    • Author(s)
      Kawai S, et. al.
    • Organizer
      29th Annual Meeting of the American Society of Bone and Mineral Research
    • Place of Presentation
      Honolulu, USA
    • Year and Date
      2007-09-17
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Osrl gene expression is regulated by Runx2 and Ikaros transcription factors2007

    • Author(s)
      Yamauchi M.
    • Organizer
      29th Annual Meeting of the American Society of Bone and Mineral Research
    • Place of Presentation
      Honolulu, USA
    • Year and Date
      2007-09-17
  • [Presentation] Hop-polyphenol prevents cellular inflammatory responses.2007

    • Author(s)
      Kou Y, et. al.
    • Organizer
      8th Annual Scientific Meeting of IADR Chinese Division
    • Place of Presentation
      Xi'an, China
    • Year and Date
      2007-09-14
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] P. gingivalis II型線毛株の細胞傷害性2007

    • Author(s)
      天野敦雄
    • Organizer
      特定領域研究「学術フロンティア」平成19年度班会議
    • Place of Presentation
      千葉県松戸市
    • Year and Date
      2007-08-17
    • Description
      「研究成果報告書概要(和文)」より
  • [Presentation] Molecular interaction between periodontal bacteria and gingival epithelial cells.2007

    • Author(s)
      Amano A
    • Organizer
      Egypt-Japan Scientific Collaboration Conference
    • Place of Presentation
      Alexandria. Egypt
    • Year and Date
      2007-05-31
  • [Book] 歯科医学の最先端2008

    • Author(s)
      天野敦雄, 他4名(分担)
    • Total Pages
      321
    • Publisher
      大阪大学出版会
    • Description
      「研究成果報告書概要(和文)」より

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Published: 2010-02-04   Modified: 2016-04-21  

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