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Craniofacial muscle engineering using a 3-dimensional phosphate glass fibre construct.

R Shah1, A C M Sinanan, J C Knowles

  • 1Division of Biomaterials and Tissue Engineering, Eastman Dental Institute, University College London, 256 Gray's Inn Road, London, WC1X 8LD, UK.

Biomaterials
|November 4, 2004
PubMed
Summary

Phosphate-based glass fibers show promise for engineering craniofacial muscle tissue in vitro. This novel scaffold material supports cell growth and the development of functional muscle fibers, offering a potential alternative to traditional surgical methods.

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Regenerative Medicine

Background:

  • Current craniofacial muscle reconstruction relies on surgical flaps, facing challenges like donor site morbidity and limited supply.
  • Engineering autologous skeletal muscle in vitro presents an alternative, but biomaterial scaffolds have shown limited success.
  • Phosphate-based glass fibers are explored as a novel scaffold for craniofacial muscle tissue engineering.

Purpose of the Study:

  • To investigate the efficacy of phosphate-based glass fibers as a scaffold for in vitro engineering of human craniofacial skeletal muscle.
  • To optimize scaffold configuration and culture conditions for enhanced muscle tissue development.

Main Methods:

  • Human masseter-derived cells were seeded onto various configurations of phosphate-based glass fibers.

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  • Growth factors and matrix components (Matrigel, IGF-I) were used to modulate the in vitro environment.
  • Microscopy, time-lapse imaging, immunofluorescence, and biochemical assays (CyQUANT, CK, protein) were employed for outcome assessment.

    • Main Results:

    • A 3-dimensional mesh arrangement of glass fibers promoted optimal cell attachment and proliferation.
    • Increased cell seeding density and the addition of Matrigel and insulin-like growth factor I significantly enhanced prototypic muscle fiber formation.
    • Phosphate-based glass fibers demonstrated biocompatibility and supported cellular organization and differentiation.

    Conclusions:

    • Phosphate-based glass fibers are a viable scaffold material for the in vitro engineering of human craniofacial skeletal muscle.
    • This approach offers a promising alternative to current reconstructive techniques, potentially reducing donor site morbidity.
    • Further research into optimizing this system could advance craniofacial tissue regeneration strategies.