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Engineering 3D Cellularized Collagen Gels for Vascular Tissue Regeneration
09:23

Engineering 3D Cellularized Collagen Gels for Vascular Tissue Regeneration

Published on: June 16, 2015

Biodegradable honeycomb collagen scaffold for dermal tissue engineering.

Joseph George1, Jun Onodera, Teruo Miyata

  • 1Division of Tissue Engineering, Koken Bioscience Institute, 2-13-10 Ukima, Kita-ku, Tokyo 115-0051, Japan. jgeorge40@hotmail.com

Journal of Biomedical Materials Research. Part A
|September 17, 2008
PubMed
Summary

Honeycomb collagen sheets serve as effective scaffolds for dermal tissue engineering. These biocompatible, biodegradable scaffolds support fibroblast proliferation and create a dermis-like structure within 60 days.

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Regenerative Medicine

Background:

  • Tissue engineering demands scaffolds that are mechanically stable, biocompatible, and biodegradable.
  • Scaffolds must support cell adherence, proliferation, and maintain cell-specific properties for surgical applications.

Purpose of the Study:

  • To evaluate honeycomb collagen sheets as a scaffold for three-dimensional (3D) cultures of human skin fibroblasts.
  • To characterize the suitability of this scaffold for dermal tissue engineering.

Main Methods:

  • Preparation of 1-mm-thick honeycomb collagen sheets from bovine dermal atelocollagen.
  • Cross-linking via UV-irradiation and sterilization by heat.
  • Culturing human skin fibroblasts in 3D on the collagen scaffolds for 60 days.

Main Results:

  • Rapid cell attachment and proliferation within the scaffold's honeycomb pores.
  • Formation of a dermis-like structure within 60 days.
  • A 12-fold increase in cellular DNA content and a 20-fold increase in procollagen type I production compared to 2D cultures.

Conclusions:

  • Honeycomb collagen sheets are mechanically stable, biocompatible, and biodegradable scaffolds for dermal tissue engineering.
  • This scaffold is suitable for creating a dermis-like structure.
  • The honeycomb collagen scaffold shows potential for other cell-based therapies and tissue engineering applications.