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Synergistic effects of 3D chitosan‐based hybrid scaffolds and mesenchymal stem cells in orthopaedic tissue engineering

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Abstract Restoration of damaged bone and cartilage tissue with biomaterial scaffolds is an area of interest in orthopaedics. Chitosan is among the low‐cost biomaterials used as scaffolds with considerable biocompability… Click to show full abstract

Abstract Restoration of damaged bone and cartilage tissue with biomaterial scaffolds is an area of interest in orthopaedics. Chitosan is among the low‐cost biomaterials used as scaffolds with considerable biocompability to almost every human tissue. Considerable osteoconductivity, porosity, and appropriate pore size distribution have made chitosan an appropriate scaffold for loading of stem cells and a good homing place for differentiation of stem cells to bone tissue. Moreover, the similarity of chitosan to glycosaminoglycans and its potential to be used as soft gels, which could be lasting more than 1 week in mobile chondral defects, has made chitosan a polymer of interest in repairing bone and cartilage defects. Different types of scaffolds using chitosan in combination with mesenchymal stem cells (MSCs) are discussed. MSCs are widely used in regenerative medicine because of their regenerative ability, and recent line evidence reviewed demonstrated that the combination of MSCs with a combination of chitosan with different materials, including collagen type 1, hyaluronic acid, Poly(L‐lacticacid)/gelatin/β‐tricalcium phosphate, gamma‐poly[glutamic acid] polyelectrolyte/titanium alloy, modified Poly(L‐Lactide‐co‐Epsilon‐Caprolactone), calcium phosphate, β‐glycerophosphate hydrogel/calcium phosphate cement (CPC), and CPC‐Chitosan‐RGD, can increase the efficacy of using MSCs, and chitosan‐based stem cell delivery can be a promising method in restoration of damaged bone and cartilage tissue.

Keywords: chitosan based; bone cartilage; mesenchymal stem; stem; stem cells; tissue

Journal Title: IET Nanobiotechnology
Year Published: 2023

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