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Cloning and characterization of a possible adhesion molecule expressed by hepatic non-parenchymal cells

Research Project

Project/Area Number 06670523
Research Category

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

Allocation TypeSingle-year Grants
Research Field Gastroenterology
Research InstitutionUniversity of Tokyo

Principal Investigator

OGATA Itsuro  Univ.of Tokyo, Fac.of Med., Assistant Professor, 医学部(病), 助手 (80169169)

Co-Investigator(Kenkyū-buntansha) MATSUI Atsushi  Univ.of Tokyo, Fac.of Med., Senior Resident, 医学部(病), 医員 (40260484)
IKEDA Hitoshi  Univ.of Tokyo, Fac.of Med., Assistant Professor, 医学部(病), 助手 (80202422)
HIRATA Keiichi  Univ.of Tokyo, Fac.of Med., Assistant Professor, 医学部(病), 助手 (50199064)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1995: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1994: ¥1,800,000 (Direct Cost: ¥1,800,000)
KeywordsHepatic stellate cell / protein-kinase / Serine / threonine protein-kinase / Endothelial cell / Kupffer cell / Non-parenchymal cell / Molecular biology / フッパー細胞 / スレオニンプロティンキナーゼ
Research Abstract

Cells change their phenotype and functions in response to the specificity of the extracellular matrix. We now report the cloning and characterization of a cDNA encoding a new member of the protein-kinase family, which can be involved in the cell-matrix interaction. The expression cDNA library obtained from a fat-storing cell (FSC) line was screened with an antibody prepared against a plasma membrane fraction of rat hepatocytes, which was supposed to contain the matrix receptor. The antibody reacted with a protein localized on the sinusoidal domain of hepatocytes. It also recognized various proteins synthesized by FSC.From 1.5x10^5 phages, 11 clones were isolated. Ten of the 11 clones derived from the same mRNA corresponding an unkown protein. Finally, we dtermined the nucleotide sequence of 6456bp. The predicted protein of this clone had two copies of serine/threonine protein-kinase domains in N-terminal end, which showed less than 40% homology with catalytic domains of previously reported protein kinases. In the C-terminus, it contained a leucine zipper domain. The cDNA recognized a 7kb mRNA in freshly isolated and cultured FSC,endothelial and Kupffer cells. In contrast, this mRNA was not detected in hepatocytes. The expression of this mRNA appeared to decrease in cultured FSC.The function of the cloned cDNA is currently under investigation.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] 尾形逸郎: "Cloning and characterization of a new member of the protein-Kinase family from a rat fat-storing cell cDNA library." Hepatology. 18. 169A (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 尾形逸郎: "Rat liver fat-storing cell lines express sarcomeric myosin heavy chain mRNA and protein." Cell Motility and the Cytoskeleton. 26. 125-132 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 池田均: "Cyclosporin A and FK-506 in inhibition of rat Ito cell activation in vitro." Hepatology. 21. 1161-1166 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 松井 淳: "Inhibition of protein synthesis in liver stellate cells (LSC) by an antisense oligonucleotide from an RNA-binding protein of activated LSC." Hepatology. 22. 281A (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 松井 淳(分担): "肝類洞壁細胞研究の進歩〔第7巻〕" 国際医書出版, 261 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 尾形逸郎(分担): "Frontier in Hepatology '96" Axel Springer Japan Publishing Inc. (in press), (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Ogata I,et al: "Cloning and characterization of a new member of the protein-kinase family from a rat fat-storing cell cDNA library." Hepatology. 18. 169A (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Ogata I,et al: "Rat liver fat-storing cell lines express sarcomeric myosin heavy chain mRNA and protein." Cell Mot.Cytoskeleton. 26. 125-132 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Ikeda H,et al: "Cyclosporin A and FK-506 in inhibition of rat Ito cell activation in vitro." Hepatology. 22. 1161-1166 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Matsui A,et al: "Inhibition of protein synthesis in liver stellate cells (LSC) by an antisense oligonucleotide from an RNA-binding protein of activated LSC." Hepatology. 22. 281A (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Matsui A,et al: "Cloning of a new protein kinase expressed by hepatic perisinusoidal cells. (In Japanese)." Progress in Hepatic Sinusoidal Cell Studies Kokusai Isho Shuppan Ltd.Medical Publishers. 93-96 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Ogata I,et al: "cloning and characterization of two newly described cDNAs from a rat hepatic stellate cell expression library." Frontier in Hepatology '96 Axl Springer Japan Publishing Inc. (in press). (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 尾形逸郎: "Cloning and characterization of a new member of the protein-kinase family from a rat fat-storing cell cDNA library." Hepatology. 18. 169A- (1993)

    • Related Report
      1995 Annual Research Report
  • [Publications] 尾形逸郎: "Rat liver fat-storing cell lines express sarromeric myosin heavy chain mRNA and protein." Cell Motility and the Cytoskeleton. 26. 125-132 (1993)

    • Related Report
      1995 Annual Research Report
  • [Publications] 池田均: "Cyclosporin A and FK-506 in inhibition of rat Ito cell activation in vitro." Hepatology. 21. 1161-1166 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 松井淳: "Inhibition of protein synthesis in liver stellate cells(LSC)by an antisense oligonucleotide derived from an RNA-binding protein of activated LSC." Hepatology. 22. 281A- (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 松井淳(分担): "国際医書出版" 肝類洞壁細胞研究の進歩〔第7巻〕. 261 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 尾形逸郎(分担): "Axel Springer Japan Publishing Inc(in press)" Frontier in Hepatology '96. (1996)

    • Related Report
      1995 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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