Journal of
Developmental Biology and Tissue Engineering

  • Abbreviation: J. Dev. Biol. Tissue Eng.
  • Language: English
  • ISSN: 2141-2251
  • DOI: 10.5897/JDBTE
  • Start Year: 2009
  • Published Articles: 42

Full Length Research Paper

Influence of osteogenic supplements on the osteoclastogenesis of human monocytes

Christiane Heinemann1*, Sascha Heinemann1, Corina Vater2, Hartmut Worch1 and Thomas Hanke1
1Max Bergmann Center of Biomaterials and Institute of Materials Science, Technische Universität Dresden, Budapester Str. 27, D-01069 Dresden, Germany. 2Department of Orthopedic Surgery, University Hospital Carl Gustav Carus, Fetscherstr 74, D-01307 Dresden, Germany.
Email: [email protected]

  • Article Number - 7F0E8DE10506
  • Vol.3(5), pp. 56-61, May 2011
  •  Accepted: 18 April 2011
  •  Published: 30 May 2011

Abstract

A basic requirement for bone remodeling is the communication between bone forming osteoblasts and bone resorbing osteoclasts – the so-called cross talk. Corresponding in vitro co-culture models might be a valuable technique in order to investigate the influence of novel biomaterials on the cross talk. Assuming that both cell types are derived by precursor cells, the role of the common osteogenic supplements concerning the osteoclastogenesis is still little known. Therefore, the approach of the present study was to analyse osteoclast formation in the presence of both, osteoclast differentiation factors as well as osteogenic differentiation factors dexamethasone (Dex), β-glycerophosphate (β-GP) and 1.25-dihydroxy vitamin D3 (VitD3) in typical concentration ranges as used for osteoblastogenesis of bone marrow stromal cells (BMSC). Human monocytes were isolated from buffy coat and separated by using magnetic activated cell sorting (MACS). DNA amount, activity of tartrate-resistant acid phosphatase isoform 5b (TRAP 5b), morphological features of the cells as well as gene expression for TRAP, cathepsin K (CTSK), calcitonin receptor (CALCR) and vitronectin receptor (VTNR) were evaluated. Finally, we are able to suggest conditions which allow both, osteoblastogenesis and osteoclastogenesis of human precursor cells in a combined cultivation medium.

Key words: Human bone marrow stromal cell, human monocytes, osteoclasts, osteoclastogenesis, osteogenic supplement, co-culture.

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