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Related Experiment Video

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Elastomeric PGS Scaffolds in Arterial Tissue Engineering
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Improving cellular migration in tissue-engineered laryngeal scaffolds.

K Wismayer1, N Mehrban1, J Bowen2

  • 1Division of Surgery,Ear Institute,University College London,UK.

The Journal of Laryngology and Otology
|March 23, 2019
PubMed
Summary
This summary is machine-generated.

Laser perforations improved cell entry into polyhedral oligomeric silsesquioxane poly(carbonate-urea) urethane scaffolds. This tissue engineering method enhances cell viability and migration for laryngeal regeneration.

Keywords:
Cell ProliferationLaryngeal NeoplasmsNanocompositesPorosityTissue EngineeringTissue Scaffolds

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Regenerative Medicine

Background:

  • Polyhedral oligomeric silsesquioxane poly(carbonate-urea) urethane is a promising material for tissue-engineered scaffolds.
  • Non-porous scaffold surfaces can impede cell infiltration and integration.

Purpose of the Study:

  • To modify the surface of a tissue-engineered laryngeal scaffold to enhance cell entry.
  • To improve the biocompatibility and cellular integration of the scaffold material.

Main Methods:

  • Characterization of mechanical properties, surface topography, and chemistry of the scaffold material.
  • Introduction of surface perforations using a laser technique.
  • Assessment of scaffold porosity using micro computed tomography.
  • Seeding scaffolds with cells, followed by histological and proliferation studies.

Main Results:

  • Laser perforation significantly increased scaffold porosity, connecting the internal structure to the external environment.
  • Cellular studies demonstrated improved cell viability and adherence to the scaffold surface and within perforations.
  • Histology confirmed cell migration into the laser-perforated scaffolds.
  • Pore diameter decreased by 11% after 15 days of incubation, correlating with a reduction in Young's modulus.

Conclusions:

  • Surface perforation via laser cutting is a viable strategy to enhance tissue-engineered scaffolds.
  • This modification improves cell infiltration and integration, crucial for laryngeal regeneration.
  • The modified scaffold shows potential for improved outcomes in tissue engineering applications.