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Chitosan: a versatile biopolymer for orthopaedic tissue-engineering.

Alberto Di Martino1, Michael Sittinger, Makarand V Risbud

  • 1Department of Orthopaedic Surgery and Graduate Program in Tissue Engineering and Regenerative Medicine, Thomas Jefferson University, Philadelphia, PA 19017, USA.

Biomaterials
|May 17, 2005
PubMed
Summary

Chitosan (CS) shows promise for orthopedic tissue engineering due to its biocompatibility and antibacterial properties. This review explores CS applications in cartilage, intervertebral disc, and bone regeneration, highlighting its potential in cell and gene therapies.

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Orthopedics

Background:

  • Current tissue engineering focuses on restoring tissue architecture using cells, scaffolds, and biomolecules.
  • Chitosan (CS)-based materials are gaining attention for orthopedic applications.
  • CS offers a minimal foreign body reaction, antibacterial properties, and moldability for porous structures.

Purpose of the Study:

  • To review current applications of chitosan in orthopedic tissue engineering.
  • To explore future directions for chitosan in cartilage, intervertebral disc, and bone regeneration.
  • To highlight chitosan's potential in cell and gene therapies.

Main Methods:

  • Review of existing literature on chitosan in orthopedic tissue engineering.
  • Analysis of chitosan's properties relevant to tissue regeneration (biocompatibility, antibacterial nature, gelling, DNA complexation).

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  • Discussion of applications in articular cartilage, intervertebral disc, and bone tissue engineering.

    • Main Results:

    • Chitosan's properties support cell ingrowth and osteoconduction.
    • Its gelling ability facilitates controlled delivery of morphogenic factors and pharmaceuticals.
    • Chitosan's cationic nature enables DNA complexation for gene delivery strategies.

    Conclusions:

    • Chitosan is a versatile biomaterial for orthopedic tissue engineering.
    • It has significant potential for applications in articular cartilage, intervertebral disc, and bone regeneration.
    • Chitosan is poised to play a key role in future cell and gene therapies for tissue repair.