Tendon Decellularized Matrix Modified Fibrous Scaffolds with Porous and Crimped Microstructure for Tendon...

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Tissue Engineering

Background:

• Current synthetic scaffolds for tendon repair lack the necessary biological and biomechanical properties of native tissues.
• Effective tendon regeneration requires scaffolds with specific topographical structures and biological signals to guide stem cell behavior.

Purpose of the Study:

• To develop and evaluate novel biofunctionalized, crimped, and porous scaffolds for enhanced tendon repair and regeneration.
• To assess the ability of these scaffolds to support stem cell infiltration, proliferation, and tenogenic differentiation.

Main Methods:

• Fabrication of aligned poly(l-lactide) fibers via electrospinning, followed by hydrogen gas foaming to create 3D porous structures.
• Grafting of decellularized porcine tendon matrix onto scaffolds using surface modification and carbodiimide chemistry.
• Evaluation of scaffold-supported tendon derived stem/progenitor cell behavior (adhesion, proliferation, migration, tenogenic induction).

Main Results:

• Successfully created crimped, porous scaffolds maintaining microstructural integrity.
• Demonstrated successful biofunctionalization with decellularized tendon matrix.
• Showed that scaffolds supported stem cell proliferation, migration, and tenogenic differentiation, and adhered to native tendons.

Conclusions:

• The developed biofunctionalized scaffolds possess suitable properties for tendon tissue engineering.
• These scaffolds show significant potential for the functional repair and regeneration of ruptured tendons.
• This approach offers a promising strategy for treating acute tendon injuries.