Chitosan-Based Biomaterials for Tissue Regeneration.

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Drug Delivery Systems

Background:

• Chitosan, a chitin-derived biopolymer, possesses advantageous properties like biocompatibility, low toxicity, and antimicrobial activity.
• Its ability to form diverse structures (nanoparticles, scaffolds, hydrogels, membranes) enhances its biomedical utility.
• Composite chitosan biomaterials show potential in stimulating tissue regeneration and repairing various organs.

Purpose of the Study:

• To review recent applications of chitosan-based biomaterials in tissue and organ regeneration.
• To explore the use of chitosan structures for controlled delivery of therapeutics, including medications and genes.

Main Methods:

• Literature review of recent preclinical and clinical studies on chitosan biomaterials.
• Analysis of studies demonstrating chitosan's role in stimulating de novo tissue formation, stem cell differentiation, and extracellular matrix reconstruction.
• Evaluation of chitosan's efficacy as a carrier for sustained drug and gene release.

Main Results:

• Chitosan-based formulations have successfully promoted regeneration in bone, cartilage, dental, skin, nerve, and cardiac tissues.
• Observed mechanisms include stimulation of new tissue growth, resident stem cell differentiation, and extracellular matrix repair.
• Chitosan structures effectively facilitate sustained release of various therapeutic agents.

Conclusions:

• Chitosan-based biomaterials are highly effective for diverse tissue regeneration applications.
• Their capacity for controlled therapeutic delivery makes them valuable in regenerative medicine.
• Continued research into chitosan applications promises significant advancements in treating tissue injuries and diseases.