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2003 Fiscal Year Final Research Report Summary

Effect of-mechanicalstress on osteoblast and osteoclast like cell

Research Project

Project/Area Number 13672160
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 矯正・小児・社会系歯学
Research InstitutionNagasaki University

Principal Investigator

NAKAO Noriko  Nagasaki University, Graduate School of Biomedical Sciences, Assistant Professor, 大学院・医歯薬学総合研究科, 助手 (20333578)

Co-Investigator(Kenkyū-buntansha) TATAMIYA Mitsuhito  Nagasaki University, Graduate School of Biomedical Sciences, Assistant Professor, 大学院・医歯薬学総合研究科, 助手 (20346919)
Project Period (FY) 2001 – 2003
KeywordsCentrifugal force / Pulsing electromagnetic fields / Human osteoblast-like cell / Osteoclast / Intracellular response / Prostaglandin / Making to lime / Resorption of the bone
Research Abstract

The mechanical stress, which were both the gravity and the electromagnetic field, stimulated the ALPase activity in a dose. dependent manner. The results suggested that the mechanical stress induced the differentiation of the human osteoblast-like cell. Furthermore, the pulse electromagnetic held load inhibited ALPase activity in the cell culture before the cell confluent. It. was clear that the pulse electromagnetic held load effected the human osteoblast-like cell in the proliferation the period. F6-1, 25(OH)2D3 and 1-25(OH)2D3 also effected the stimulation of the human osteoblast-like cell proliferation by the gravity and the electromagnetic field. In general, the increase of ALPase activity and the production of BGP, which was non-collagen substrate protein, were related each other. But, the different production of BMP in the gravity and in the pulse electromagnetic field was recognized in this study. However, the gravity, which was the centrifugal force, did not effect both the RANKL-and TNF-α-induced osteoclastogenesis. These results suggested that the mechanical was useful for bone formation because it induced the osteoblast-formation but not the osteoclastogenesis.

  • Research Products

    (4 results)

All Other

All Publications (4 results)

  • [Publications] Kitaura, H., N.Nagata, Y.Fujimura, H.Hotokezaka, N.Yoshida, K.Nakayama: "Effect of IL-12 on TNF-a-mediated osteoclast formation in bone marrow cells apoptosis mediated by Fas/Fas ligand interaction"Journal of Immunology. 169(9). 4732-4738 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kitaura, H., Tatamiya, M., Nakao, N., Yoshida, N., et al.: "Interleukin-4 directly inhibits tumor necrosis factor- α -mediated osteoclast formation in mouse bone marrow macrophages"Immunol.Lett.. 88(3). 193-198 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kitaura, H., Nagata, N., Fujimura, Y., Hotokezaka, H., Yoshida, N., Nakayama, K.: "Effect of IL-12 on TNF-a-mediated osteoclast formation in bone marrow cells : apoptosis mediated by Fas/Fas ligand interactionl"Journal of Immunology. 169(9). 4732-4738 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kitaura, H., Tatamiya, M., Nakao, N., Yoshida, N.et al.: "Interleukin-4 directly inhibits tumor necrosis factor-α-mediated osteoclast formation in,mouse bone marrow macrophages"Immunol Lett.. 88(3). 193-198 (2003)

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

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Published: 2005-04-19  

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