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Related Experiment Videos

Cementum engineering with three-dimensional polymer scaffolds.

Q-M Jin1, M Zhao, S A Webb

  • 1Center for Craniofacial Regeneration and Department of Periodontics/Prevention/Geriatrics, School of Dentistry, University of Michigan, Ann Arbor, Michigan 48109-1078, USA.

Journal of Biomedical Materials Research. Part A
|October 1, 2003
PubMed
Summary
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Cementoblast cell delivery via poly lactic-co-glycolic acid (PLGA) scaffolds shows promise for periodontal tissue engineering. Implants demonstrated mineral formation and expression of key regenerative genes in vivo.

Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Regenerative Medicine

Background:

  • Periodontal tissue engineering aims to regenerate damaged tissues.
  • Poly lactic-co-glycolic acid (PLGA) scaffolds are utilized for tissue regeneration.
  • Cellular behavior on scaffolds requires in-depth investigation.

Purpose of the Study:

  • To evaluate the potential of cloned cementoblasts (OCCMs), periodontal ligament fibroblasts (SV-PDLs), and dental follicle (SV-F) cells for periodontal tissue regeneration.
  • To assess cell behavior and mineralization on PLGA scaffolds in vitro and in vivo.
  • To investigate gene expression related to mineralization and periodontal regeneration.

Main Methods:

  • Cell seeding of OCCMs, SV-PDLs, and SV-F cells onto 3D PLGA scaffolds.

Related Experiment Videos

  • In vitro culture using bioreactors and in vivo subcutaneous implantation in SCID mice.
  • Analysis of cell growth, gene expression (RT-PCR), and mineralization (histology).

    • Main Results:

    • Cells attached to PLGA scaffolds under static and dynamic conditions.
    • Mineral formation was observed exclusively in OCCM implants after 3 and 6 weeks.
    • Genes for Type I and XII collagens, osteocalcin, and bone sialoprotein were detected in vivo.

    Conclusions:

    • OCCM cells delivered via PLGA scaffolds show potential for periodontal regeneration.
    • PLGA scaffolds support cell attachment and in vivo mineralization.
    • This approach offers a viable strategy for periodontal tissue engineering.