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Immunohistological study of immune system associated with periodontal tissue breakdown by endotoxin

Research Project

Project/Area Number 02454440
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Conservative dentistry
Research InstitutionNagasaki University

Principal Investigator

KATO Ihachi  Nagasaki University School of Dentistry, Professor, 歯学部, 教授 (30005087)

Co-Investigator(Kenkyū-buntansha) ICHIMARU Eiji  Nagasaki University School of Dentistry, Research associate, 歯学部, 助手 (60223111)
HARA Yoshitaka  Nagasaki University School of Dentistry, Associate Professor, 歯学部, 助教授 (60159100)
Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥5,300,000 (Direct Cost: ¥5,300,000)
Fiscal Year 1991: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1990: ¥4,500,000 (Direct Cost: ¥4,500,000)
KeywordsEndotoxin / Histopathological study / Node mouse / Bone resorption / Osteoclast / ELISA法 / EIA法 / 血清抗体
Research Abstract

<Purpose> Endotoxin exhibits the toxic and immunological activities, which and associated with the establishment of periodontal disease under the influence of various immune cells. The purpose of this study is to clarify the role of immune cells on the osteoclastic bone resorption and periodontal inflammation induced by endotoxin in immunized (IM), non-immunized (NI) mice and congenital T Lymphocyte deficet (NU) mice.
<Methods and Results> Eight-week-old mice of the BALB/c (+/+) and BALB/c (nu/nu) strains were used for this study. Consecutive infections of E. coli endotoxin into gingival tissue of IM, NI and NU mice were performed. Anti-endotoxin titer of the mouse serum was measured by the ELISA method. IM mice showed osteoclastic bone resorption on alveolar bone and severe inflammation of gingival tissue in earlier period tnan NI mice. The slight inflammation was observed in NU mice compared with IM and NI mice, and was not formed osteoclastic bone resorption. Anti-endotoxin titers of NI and NU mice serum gradually increased, finally overtaked IM mice serum.
<Conclusions> In this study, we could make it clear that the existence of T cell has a great influence on osteoclast formation and periodontal inflammation.

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] 井村 憲二ほか: "内毒素によるマウスの歯周組織破壊と免疫反応に関する実験的研究第1報" 日本歯周病学会会誌. 33秋季特別号. 76 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Kenji IMURA et al.: "AN EXPERIMENTAL STUDY OF IMMUNE CELLS ON OSTEOCLAST FORMATION AND PERIODONTAL INFLAMATION INDUCED BY ENDOTOXIN" The 9th International Conference on Periodontal Research. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Kenji IMURA, Eiji ICHIMARU, Yoshitaka HARA , Ihachi KATO: "An experimental study on periodontal tissue breakdown and immune response of mice to endotoxin (Part 1)." J. Japan. Ass. Periodont.33. 76 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Kenji IMURA, Yoshitaka HARA, Eiji ICHIMARU, Atsutoshi YOSHIMURA, Ihachi KATO: "An experimental study of immune cells on osteoclast formation and periodontal inflammation induced by endotoxin" The 9th International Conference on Periodontal Research, Abstract. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 井村 憲二 ほか: "内毒素によるマウスの歯周組織破壊と免疫反応に関する実験的研究 第1報" 日本歯周病学会会誌. 33 秋季特別号. 76 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Kenji IMURA et al.: "AN EXPERIMENTAL STUDY OF IMMUNE CELLS.ON OSTEOCLAST FORMATION AND PERIODONTAL INFLAMMATION INDUCED BY ENDOTOXIN" The 9th International Conference on Periodontal Research. (1992)

    • Related Report
      1991 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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