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Molecular architecture and function of endothelial cells

Research Project

Project/Area Number 62480096
Research Category

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

Allocation TypeSingle-year Grants
Research Field General anatomy (including Histology/Embryology)
Research InstitutionKyushu University

Principal Investigator

YAMAMOTO Torao  Kyushu University,Faculty of Medicine,Professor, 医学部, 教授 (80037324)

Co-Investigator(Kenkyū-buntansha) NAKAMURA Keiichirou  Kyushu University,Faculty of Medicine,Lecturer, 医学部, 講師 (20172398)
WASANO Kojirou  Kyushu University,Faculty of Medicine,Assistant Professor, 医学部, 助教授 (90117292)
Project Period (FY) 1987 – 1988
Project Status Completed (Fiscal Year 1988)
Budget Amount *help
¥5,000,000 (Direct Cost: ¥5,000,000)
Fiscal Year 1988: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1987: ¥3,500,000 (Direct Cost: ¥3,500,000)
KeywordsEndothelial cells / Quick-freeze replica / Deep-etching replica / Plasmalemmal Vesicles / Actin filaments / 蛍光顕微鏡 / 電子顕微鏡 / 凍結割断レプリカ / デスミン / ビメンチン / アクチン / エッチングレプリカ / 縞状構造 / クラスリン
Research Abstract

The present study was carried out to clarify the structural basis, particularly molecular arckitectural basis, of the functions of endothelial cells by using ultrathin section, freeze-fracture replica and fluorescence microscope techniques.
The cytoplasmic surface of plasmalemmal vesicles in aortic endothelial cells was examined in quick-freeze, deep-etching replicas. The cytoplasmic surface membranes of small vesicles (60-80 nm in diameter) which are usually observed as smooth vesicles in section were associated with striped patterns. These stripes were composed of several ridges or strands of 6-10 nm in width, and some were crossed. These striped structures were enhanced by treatment with myosin subfragment-1 or-phalloidin, thus indicating a possible relation to actin filaments. These striped structures may be suggested to be involved in the formation and transport of smooth vesicles. The freeze-fracture replicas of the luminal surface membrane of the endothelial cells did not show any regular distribution patterns. The actin filaments consisting the cytoskelet were different in nature from those of medial smooth muscle cells as demonstrated by immuno-fluorescence microscopy.

Report

(3 results)
  • 1988 Annual Research Report   Final Research Report Summary
  • 1987 Annual Research Report
  • Research Products

    (20 results)

All Other

All Publications (20 results)

  • [Publications] Noguchi,Y.;Shibata,Y.;Yamamoto,T.: Anatomical Record. 217. 355-360 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Mohtai,M.;Yamamoto,T.: Atherosclerosis. 63. 193-202 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Izumi,T.;Shibata,Y.;Yamamoto,T.: Anatomical Record. 220. 225-232 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Tahara,T.;Yamamoto,T.: Virchowe Archiv A Pathological Anatomy and Histopathology. 413. 151-158 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Matsuura,T.;Yamamoto,T.: Virchows Archiv.A Pathological Anatomy and Histopathology. 413. 123-131 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 中村桂一郎,張学軍,馬渡正明,泉敏弘,山元寅男: 福岡医学雑誌. 79. 341-346 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Noguchi,Y.; Shibata,Y.; Yamamoto,T.: "Endothelial vesicular system in rapid-frozen muscle capillaries revealed by serial sectioning and deep etching." Anatomical Record. 217. 355-360 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Mohtai,M.; Yamamoto,T.: "Smooth muscle cell proliferation in the rat coronary artery induced by vitamin D." Atherosclerosis. 63. 193-202 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Izumi,T.; Shibata,Y.; Yamamoto,T.: "Striped structures on the cytoplasmic surface membranes of the endothelial vesicles of the rat aorta revealed by quick-freeze, deep-etching replicas." Anatomical Record. 220. 225-232 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Tahara,T.; Yamamoto,T.: "Morphological changes of the villous microvascular architecture and intestinal growth in rats with streptozotocin-induced diabetes." Virchows Archiv A Pathological Anatomy and Histopathology. 413. 151-158 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Matsuura,T.; Yamamoto,T.: "An electron microscope study of arteriolar branching sites in the normal gastric submucosa of rats and in experimental gastric ulcer." Virchows Archiv A Pathological Anatomy and Histopathology. 413. 123-131 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Izumi,T.;Shibata,Y.;Yamamoto,T.: Anatomical Record. 220. 225-232 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Matsuura,T.;Yamamoto,T.: Virchows Archiv A.Pathological Anatomy. 413. 123-131 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Tahara,T.;Yamamoto,T.: Virchows Archiv A.Pathological Anatomy. 413. 151-158 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 中村桂一郎,張学單,馬渡正明,泉敏弘,山元寅男: 福岡医学雑誌. 79. 341-346 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Noguchi,Y.: Anatomical Record. 217. 355-360 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] Izumi,T.: Anatomical Record.

    • Related Report
      1987 Annual Research Report
  • [Publications] Matuura,T.: Virchow Archiv A;Pathological Anatomy and Histopathology.

    • Related Report
      1987 Annual Research Report
  • [Publications] Tahara,T.: Virchow Archiv A;Pathological Anatomy and Histopathology.

    • Related Report
      1987 Annual Research Report
  • [Publications] 中村桂一郎: 福岡医学雑誌.

    • Related Report
      1987 Annual Research Report

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Published: 1987-04-01   Modified: 2016-04-21  

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