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2000 Fiscal Year Final Research Report Summary

Study on Gene Expressions of Two Novel Microglial Cell Growth Factors

Research Project

Project/Area Number 10670440
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 内科学一般
Research InstitutionNational Center of Neuroscience, NCNP

Principal Investigator

KIKUCHI Aiko  Dept. of Ultrastructural Res, National Institute of Neuroscience Researcher, 神経研究所・微細構造研究部, 研究員 (70159010)

Co-Investigator(Kenkyū-buntansha) 加茂 功  国立精神神経センター, 神経研究所・微細構造研究部, 室長 (70108489)
Project Period (FY) 1998 – 2000
KeywordsMicroglia / neuronal cells / brain / monocyte / myasthenia gravis / colony stimulating factor / recombinant fator / differentiation factor
Research Abstract

We have previously found that thymic myoid cells produce various lympho-myelocyte stimulatory activities. We succeed in purifying two new haemopoietic factors, an 80 kDa factor and a 100 kDa factor. Those two factors are capable of inducing preferential growth of monocytic lineage cells, but differ from each other and also from the authentic macrophage colony stimulating factor and granulocyte-macrophage colony stimulating factor. We found these factors in the myasthenic thymus hyperplasia. Thereby, they appear to be responsible for intrathymic production of anti-AChR antibody. We also succeed in identifying producer cells of these two factors in the rat brain. The 80 kDa and 100 kDa factor were concomitantly produced with macrophage colocy stimulating factor. The two new factors immunopurified from the brain indeed stimulated microglial cell growth. Recombinant 80 kDa factor was obtained and study of recombinant 100 kDa factor is in progress. We are also successful in identifying the two factors in human neuronal cells.

  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] Tomoyasu H., et al.: "Production of two haemopoietic factors in the hyperplastic thymus associated with myasthenia gravis"Journal of Neuroimmunology. 90. 94-94 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kamo I., et al.: "Generation of B(B1)cells and myoid cells from thymic stromal cells"Journal of Neuroimmunoloty. 90. 91-91 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kikuchi A., et al.: "The brain produces two novel haemopoietic factors for microglial cell growth"Journal of Neruoimmunology. 90. 49-49 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kikuchi A., et al.: "Study on Physiological roles of two novel haemopoietic factors"Cell Biology International. 24. 940-940 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kamo I., et al.: "Thymic myoid cells induce myasthenia gravis and hyperplasia"Cell Biology International. 24. 932-932 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kikuchi A., et al.: "Haemopoietic biglycan produced by brain cells stimulates growth of microglial cells"Journal of Neuroimmunology. 106. 78-86 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tomoyasu H., et al.: "Identification of haemopoietic biglycan in hyperplastic thymus associated with myasthenia gravis"Journal of Neuroimmunology. 89. 59-63 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tomoyasu H., et al.: "Production of two haemopoietic factors in the hyperplastic thymus associated with myasthenia gravis"Journal of Neuroimmunology. 90. 94-94 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kamo I., et al.: "Generation of B (B1) cells and myoid cells from thymic stromal cells"Journal of Neuroimmunoloty. 90. 91-91 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kikuchi A., et al.: "The brain produces two novel haemopoietic factors for microglial cell growth"Journal of Neruoimmunology. 90. 49-49 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kamo I., et al.: "Thymic myoid cells induce myasthenia gravis and hyperplasia"Cell Biology International. 24. 932-932 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kikuchi A., et al.: "Study on Physiological roles of two novel haemopoietic factors"Cell Biology international. 24. 940-940 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kikuchi A., et al.: "Haemopoietic biglycan produced by brain cells stimulates growth of microglial cells"Journal of Neuroimmunology. 106. 78-86 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tomoyasu H., et al: "Identification of haemopietic biglycan in hyperplastic thymus associated with myasthenia gravis"Journal of Neuroimmunology. 89. 59-63 (1998)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2002-03-26  

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