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Osteoclastogenesis on tissue-engineered bone.

Keisuke Nakagawa1, Harutsugi Abukawa, Michael Y Shin

  • 1Department of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA.

Tissue Engineering
|March 11, 2004
PubMed
Summary
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This study shows osteoclast formation on mineralized polymer scaffolds, a novel finding in bone tissue engineering. This research advances understanding of bone remodeling and osteoclastogenesis on synthetic materials.

Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Cell Biology

Background:

  • Bone remodeling is crucial for bone health and function.
  • Current bone tissue engineering predominantly focuses on osteoblast-driven bone formation.
  • Understanding osteoclast activity on scaffolds is vital for complete bone regeneration.

Purpose of the Study:

  • To investigate osteoclastogenesis on mineralized polymer scaffolds.
  • To explore the potential of co-culturing mesenchymal stem cells and hematopoietic cells on scaffolds.
  • To demonstrate the feasibility of forming osteoclasts on engineered bone constructs.

Main Methods:

  • Porcine mesenchymal stem cells (pMSCs) and hematopoietic cells were isolated from bone marrow.
  • pMSCs were differentiated into osteoblasts and seeded onto poly(D,L-lactic-co-glycolic acid) foams.

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  • Hematopoietic cells were added for co-culture after scaffold mineralization in a bioreactor.

    • Main Results:

    • Successful differentiation of osteoblasts and osteoclasts from bone marrow cells on the scaffolds.
    • Demonstrated osteoclast formation on a mineralized polymer scaffold.
    • Histochemical and microscopic analyses confirmed cell differentiation and scaffold interaction.

    Conclusions:

    • Osteoclastogenesis can occur on mineralized polymer scaffolds.
    • This study presents the first evidence of osteoclast formation on such surfaces.
    • Findings contribute to advancing bone tissue engineering strategies by including osteoclast activity.