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Molecular mechanisms of absorption, storage, and secretion of vitamin A

Research Project

Project/Area Number 09670066
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental physiology (including Physical medicine and Nutritional physiology)
Research InstitutionAkita University

Principal Investigator

MATANO Yoshikazu  Akita University, Department of Anatomy, Associate Professor, 医学部, 助教授 (40006739)

Co-Investigator(Kenkyū-buntansha) SATO Mitsuru  Akita University, Department of Anatomy, Research Associate, 医学部, 助手 (60226008)
IMAI Katsuyuki  Akita University, Department of Anatomy, Research Associate, 医学部, 助手 (80006741)
SENOO Haruki  Akita University, Department of Anatomy, Professor, 医学部, 教授 (90171355)
Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 1998: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1997: ¥2,900,000 (Direct Cost: ¥2,900,000)
Keywordsvitamin A / retinyl palmitate / jejunum / ileum / lamina propria mucosae / fibroblast-like cell / hepatic stellate cell / extrahepatic stellate cell / ビタミンA貯蔵細胞 / デスミン / α-平滑筋アクチン
Research Abstract

Male Wistar strain rats maintained on a normal chow diet were fasted for 18 h and used. Experimental animals were administered 50,000IU retinyl palmitate/0.5 ml corn oil to the stomach through a gastric tube. Three, 6, 24, 48, 96 h and 1 week after the administration of retinyl palmitate, each rat was deeply anesthetized and the stomach, duodenum, jejunum, ileum, and ascending colon were examined morphologically. Three h after the administration, autofluorescence of vitamin A was observed in the absorptive epithelial cells in the duodenum, jejunum and ileum. Six h after the administration, the autofluorescence emanated from not only the epithelial cells of the jejunum but cells in the lamina propria mucosae of the jejunum. Twenty-four, 48 and 96 h and even 1 week after the administration, the autofluorescence disappeared from the epithelial cells but remainedin the cells in the lamina propria mucosae of the jejunum. Electron microscopically, numerous pores were observed in the basement membrane beneath the epithelial cells. Fibroblast-like cells, pericytes, and macrophage-like cells in the lamina propria mucosacstored many large lipid droplets within the cytoplasm. Immunofluorescence demonstrated that the fibroblast-like cells in the lamina propna mucosae of the jejunum, ileum, and colon expressed desmin and alpha - smooth muscle actin that are specific markers for the hepatic stellate cells (vitamin A-storing cells). These data indicate that the vitamin A absorption and storage system, belonging to the extrahepatic stellate cell system, exists in the digestive tract.

Report

(3 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • Research Products

    (27 results)

All Other

All Publications (27 results)

  • [Publications] Senoo H, et al: "Hepatic stellate cells-from the viewpoint of retinoid handling and functions of extracellular matrix" Acta Anat Nippon. 72. 79-94 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Nagy NE, et al.: "Storage of vitamin A in extrahepatic stellate cells in normal rats" J Lipid Res. 38. 645-658 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Senoo H, et al.: "Molecular mechanisms in the reversible regulation of morphology, proliferation, and collagen metabolism in hepatic stellate cells by the three-dimensional structure of the ECM" J Gastroent Hepatol. 13. S19-32 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kojima N, et al.: "Stellate cells(vitamin A-stroing cells)change their cytoskeleton and signal transduction system according to extracellular matrix" Histochem Cell Biol. 110. 121-128 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Sato M, et al.: "Induction of cellular processes containing collagenase and retinopid by integrin-binding to type I collagen in hepatic stellate cell culture" Cell Biol Int. 22. 115-125 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Matano Y, et al.: "Hepatic stellate cells and extrahepatic stellate cells(extrahepatic vitamin A-storing cells)" Cells Hepatic Sinuoid. in press.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 妹尾春樹、 他: "細胞外マトリックス研究法" コラーゲン技術研修会, 25 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Senoo H,et al.: "Hepatic stellate cells-from the viewpoint of retinoid handling and functions of extracellular matrix." Acta Anat Nippon.72. 79-94 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Nagy EN,et al.: "Storage of vitamin A in extrahepatic steelate cells in normal rats." J Lpid Res.38. 645-685 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Senoo H,et al.: "Molecular mechanisms in the reversible regulation of morphology, proliferation, and Collagen metabolism in hepatic stellate cells by the three-dimensional structure of the extracellular matrix." J Gastroent Hepatol.13. S19-32 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Kojima N,et al.: "Stellate cells (vitamin A-storing cells) change their cytoskeleton and signal transduction system according to extracellular matrix." Histochem Cell Biol.110. 121-128 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Sato M,et al.: "Induction of cellular processes containing collagenase and retinoid by integrin-binding to type I collagen in hepatic stellate cell culture." Cell Biol Int. 22. 115-125 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Matano Y,et al.: "Hepatic stellate cells and exprahepatic stellate cells (estrahepatic vitamin A-storing cells)." Cells Hepatic Sinusoid. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Senoo H,et al.: "Research Methods for Extracellular Matrix" Collagen Research Study and Training Society. (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Senoo H,et al.: "Hepatic stellate cells-from the viewpoint of retinoid handling and functions of extracellular matrix-" Acta Anat Nippon. 72. 79-94 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Nagy NE,et al.: "Storage of vitamin A in extrahepatic stellate cells in normal rats" J Lipid Res. 38. 645-658 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Senoo H,et al.: "Molecular mechanisms in the reversible regulation of morphology,proliferation,and collagen metabolism in hepatic stellate cells by the three-dimensional structure of the extracellular matrix" J Gastroent Hepatol. 13. S19-32 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Kojima N,et al.: "Stellate cells (Vitamin-A-storing cells) change their cytoskeleton and signal transduction system according to extracellular matrix" Histochem Cell Biol. 110. 121-128 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Sato M,et al.: "Induction of cellular processes containing collagenase and retinoid by integrin-binding to type I collagen in hepatic stellate cell culture" Cell Biol Int. 22. 115-125 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Matano Y,et al.: "Hepatic stellate cells and extrahepatic stellate cells (extrahepatic vitamin A-storing cells)" Cells Hepatic Sinousoid. in press.

    • Related Report
      1998 Annual Research Report
  • [Publications] 妹尾春樹、他: "細胞外マトリックス研究法" コラーゲン技術研修会, 25 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 俣野 吉計: "小腸のビタミンA吸収・貯蔵細胞系" ビタミン. 71. 174 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Nagy N: "Storage of vitamin A in extrahepatic stellate cells in normal rats" J. Lipid Res.38. 645-658 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Senoo H.: "Hepatic stellate cells-From the viewpoint of retinoid handling and function of extracellular matrix-" Acta Anat, Nippon. 72. 79-94 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Matano Y.: "Absorption and storage of vitamin A in the intestine" Cell Struct. Func. 22. 748 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Matano T.: "Absorption and storage of vitamin A in the digestive tract" Aota Anat.Nippon.72. 301 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Senoo H.: "Vitamin A-storing systetm in the Arctic animals" Acta Anat. Nippon.72. 274 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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