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Functional and morphological analysis orme main excretory auct epithelium of the salivary gland. VI. Secretory ability of the tuft cell

Research Project

Project/Area Number 11671833
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Morphological basic dentistry
Research InstitutionFukuoka Dental College

Principal Investigator

SATO Atsuko  Fukuoka Dental College, Fukuoka Dental College Biological, Morphology, Associate professor (20099047)

Co-Investigator(Kenkyū-buntansha) SUGANUMA Tatsuo  Miyazaki Medical College, Anatomy, professor (60115350)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2001: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2000: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1999: ¥1,200,000 (Direct Cost: ¥1,200,000)
Keywordstuft cell / main excretory duct / submandibu ar gland / lectin cytochemistry / 3-D reconstruction / radioautography / ^3H-galactose / rat / light cell type I / light cell type II / オートラジオグラフィー / レクチン
Research Abstract

1. The surface of microvilli and the tubulovesicular system of the tuft cell exhibited the SBA (Soybean agglutinin) reactivity, suggesting a elationship between them.
2. 3-D reconstruction of the tuft cell reveald the hypolemmal terminal-tuft cell relationship and that tubulovesicular system composed of the complex and coherent vesicles and small network of tubules separated respectively, suggesting the stock of membrane for rapid change of the surface area.
3. The ability to secrete the glycoprotein by the tuft cells in the main exc etory duct was investigated with light and electron microscope radioautographic study. The glycoprotein precursor 3H-galactose was injected intravenously into rats. At 5min, 20min, 2h,6h, 24h after injection of ^3H-galactose, animals were sacrificed. The results indicated that the tuft cells readily incorporate ^3H-galactose into the membrane glycoproteins, which are incorporated into the Plasma membrane and that have no ability to secrete theglycoprotein into the saliva.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (6 results)

All 2003 2000 Other

All Journal Article (4 results) Publications (2 results)

  • [Journal Article] Three-demensional structure of apical vesicles of tuft cell of the main excretory duct in the rat submandibulargland.2003

    • Author(s)
      Sato A.
    • Journal Title

      Eur J Morphol (in press)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Journal Article] Three-demensional stucture of apical vesicles of tuft cell of the main excretory duct in the rat submandibular gland.2003

    • Author(s)
      Sato A., Hisanaga Y., Inoue Y., Nagato T., Toh H.
    • Journal Title

      Eur J Morphol (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Journal Article] Tuft cell in the main excretory duct of the rat submandibular gland.2000

    • Author(s)
      Sato A.
    • Journal Title

      Eur J Morphol 38

      Pages: 227-231

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Journal Article] Tuft cell in the main excretory dt ct of the rat submandibular gland.2000

    • Author(s)
      Sato A., Suganuma T., Ide S., Kavano J., Nagato T.
    • Journal Title

      Eur J Morphol 38(4)

      Pages: 227-231

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Sato,A.: "Tuft cells in the main excretory duct of the rat submandibular gland."European Journal of Morphology. 38(4). 227-231 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Sato,A.,et al.: "Tuft cells in the main excretory duct of the rat submandibular gland."Eur.J.Morph.. 4(in press). (2000)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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