A Novel Chitosan-Peptide System for Cartilage Tissue Engineering With Adipose-Derived Stromal Cells

The study investigates a novel chitosan-peptide system, specifically the UG28 peptide, for enhancing cartilage tissue engineering using adipose-derived stromal cells (AD-SCs). The UG28 peptide significantly increases cell viability, glycosaminoglycan synthesis, and collagen production, essential for cartilage formation, without cytotoxic effects. It also shows minimal immunogenicity, with low lymphocyte and basophil activation. The chitosan-UG28 composite promotes extracellular matrix production and differentiation into chondrocytes, offering a promising regenerative strategy for cartilage repair. This approach could potentially restore cartilage structure and improve joint function, providing a minimally invasive alternative to conventional treatments. Further preclinical and clinical studies are needed to optimize its application and assess long-term effects.