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Expression of nerve construction protein in developing and regenerating auditory organ

Research Project

Project/Area Number 10671624
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Otorhinolaryngology
Research InstitutionHyogo College of Medicine

Principal Investigator

SEO Toru  Faculty of Medicine, Hyogo College of Medicine Assistant Professor, 医学部, 講師 (30258149)

Co-Investigator(Kenkyū-buntansha) NOGUCHI Koichi  Faculty of Medicine, Hyogo College of Medicine Professor, 医学部, 教授 (10212127)
SAKAGAMI Masafumi  Faculty of Medicine, Hyogo College of Medicine Professor, 医学部, 教授 (10170573)
HATTA Chiiro  Faculty of Medicine, Hyogo College of Medicine Assistant Professor, 医学部, 講師 (00289076)
Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2000: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1999: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1998: ¥1,800,000 (Direct Cost: ¥1,800,000)
KeywordsAuditory organ / Inner ear / Development / Regeneration / NCAM-H / NGF / MAP-2 / synapse / 聴覚器 / 神経細胞 / 電子顕微鏡 / 免疫組織化学 / 細胞分裂 / アポトーシス / 内耳
Research Abstract

Neural cell adhesion molecule (NCAM) is highly polysialylated (NCAM-H) in developing tissues, and recent findings suggest that NCAM-H is more essential development than poorly sialylated NCAM (NCAM-L). In order to understand the precise role of NCAM-H, NGF and MAP-2 in developing, adult and regenerating inner ear, the immunohistochemical localization of NCAM-H, NGF and MAP-2 was examined using a monoclonal antibody. Immunoreaction of NGF and NCAM-H were initially observed on acoustic ganglion cells, when afferent fibers begin to emerge from the ganglion cells. When afferent fibers from synapses with hair cells, NGF and NCAM-H were observed on nerve fibers and the base of hair cells in auditory epithelium. At the adult hair cells, NCAM-H was disappeared. Imunoreaction of MAP-2 were observed on matured hair cells and regenerated hair cells.
These date are consisted with the hypothesis that NCAM-H specifically regulates the afferent nerve fiber growth and synaptogenesis with hair cells during inner ear development, and MAP-2 may be associated with processing auditory information and neural plasticity.

Report

(4 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] Umemoto M,Sakagami M.: "Expression of gicerin in regenerating chick inner ear following Acoustic trauma."21th Association for research in otolaryngology midwinter research meeting. 21. 160 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 梅本匡則,阪上雅史: "鳥類内耳再生時におけるMAP2の経時的変化について"頭頚部自律神経. 12. 24-25 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Sakagami M.: "Role of osteopontin in the rodent inner ear as revealed by In situ hybridization"Med,Electron Microsc.. 33. 3-10 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Umemoto M.Sakagami M.: "Expression of gicerin in regenerating chick inner ear following Acoustic trauma."ARO midwinter research meeting. 21. 160 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Sakagami M.: "Role of osteopontin in the rodent inner ear as revealed by In situ hybridization"Med.Electron Microsc.. 33. 3-10 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Umemoto M,Sakagami M.: "Expression of gicerin in regenerating chick inner ear following Acoustic trauma."21th Association for research in otolaryngology midwinter research meeting. 21. 160 (1998)

    • Related Report
      2000 Annual Research Report
  • [Publications] 梅本匡則,阪上雅史: "鳥類内耳再生時におけるMAP2の経時的変化について"頭頚部自律神経. 12. 24-25 (1998)

    • Related Report
      2000 Annual Research Report
  • [Publications] Sakagami M.: "Role of osteopontin in the rodent inner ear as revealed by In situ hybridization"Med.Electron Microsc.. 33. 3-10 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 梅本 匡則: "鳥類内耳発生時における神経細胞接着因子の経時的観察"頭頚部自律神経学会誌. 12. 24-25 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] 梅本 匡則: "鳥類内耳再生時におけるMAP2の経時的変化について"頭頚部自律神経学会誌. 13. 9-10 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 梅本 匡則: "鳥類内耳発生時における神経細胞接着因子の経時的変化について" 頭頚部自律神経学会誌. 12. 24-25 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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