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Interaction of cytokines and cell adhesion molecules during osteoclastogenesis

Research Project

Project/Area Number 11671089
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Endocrinology
Research InstitutionOKAYAMA UNIVERSITY

Principal Investigator

INOUE Masaru  Okayama University, Hospital, Lecturer, 医学部・附属病院, 講師 (20253023)

Co-Investigator(Kenkyū-buntansha) TANAKA Hiroyuki  Okayama University, Graduate School of Medicine and Dentistry, Associate Professor, 大学院・医歯学総合研究科, 助教授 (80231413)
SEINO Yoshiki  Okayama University, Graduate School of Medicine and Dentistry, Professor, 大学院・医歯学総合研究科, 教授 (80028620)
守分 正  岡山大学, 医学部・附属病院, 講師 (40243505)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2001: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2000: ¥600,000 (Direct Cost: ¥600,000)
Keywordsosteoclast precursors / signal transduction / tyrosine phosphorylation / integrin / M-CSF / cell adhesion / 信号伝達系 / 細胞外マトリックス / 破骨細胞 / 細胞接着因子 / マクロファージコロニー刺激因子
Research Abstract

Most type of cells need to contact with extracellular matrix, which are mainly mediated with integrins. The signal transduction pathway through integrin shares many parts with that of cyokines. The expression of integrin avβ5 is abundant on osteoclast precursors, which need many kinds of cyokines, including M-CSF, for their maturation and survival. Therefore we explored interaction of integrin and cytokine signal pathway on osteoclast precursors.
Osteoclast precursors were isolated from C3H mouse hindlimb bones and cultured in PFA dishes for 3 days with M-CSF. Osteoclast precursors were collected and cultured on plastic(A) or PFD(NA) dishes with(+) or without(-) M-CSF. Cell lysate from each group were fractionated on SDS-PAGE, blotted onto membrane and proved by anti-phosphorlated tyrosine.
The 50kDa band were regulated by cell attachment and decreased in NA compared with A. The effect of M-CSF was not clear between NA- and NA+, the intensity of 50kDa band in A+ showed 1.3fold increase of that in A-.
The 50kDa protein is the candidate of signal transduction molecules. Cell adhesion is necessary for the effect of M-CSF since the intensity of 50kDa band was up-regulated by M-CSF in A.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (7 results)

All Other

All Publications (7 results)

  • [Publications] Y.Seino, et al.: "Molecular defects in achondroplasia and the effects of Growth hormone treatment"Acta Pediatrica Suppi.. 428. 118-120 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Inoue, et al.: "Altered Biochemical Markers of Bone Turnover in Human During 120 Days of Bed Rest"Bone. 26. 281-286 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Miyamura, et al.: "The Effects of Bone Marrow Transplantation on X-linked Hypophosphatemic Mice"J. of Bone and Mineral Research. 15. 1451-1458 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Y. Seino, T, Moriwake, H. Tanaka, M. Inoue, S. Kanzaki, T. Tanaka, N. Matsuo, H. Niimi: "Molecular defects in achondroplasia and the effects of growth hormone treatment"Acta Paediatrica Suppl.. 428. 118-120 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M. Inoue, H. Tanaka, T. Moriwake, M. Oka, C. Sekiguchi, Y. Seino: "Altered Biochemical Markers of Bone Turnover in Humans During 120 Days of Bed Rest."Bone. 26. 281-286 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Miyamura, H. Tanaka, M. Inoue, Y. Ichinose, Y. Seino: "The Effects of Bone Marrow Transplantation on X-linked Hypophosphatemic Mice"Journal of Bone and Mineral Research. 15. 1451-1458 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Inoue: "Altered biochemical markers of bone turnover in humans during 120 days of bed rest."Bone. 26. 281-286 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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