Structural properties of polysaccharide-based microcapsules for soft tissue regeneration

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Regenerative Medicine

Background:

• Cell encapsulation is crucial for organ substitution, gene therapy, and regenerative medicine.
• Developing injectable scaffolds is key for soft tissue repair and regeneration.

Purpose of the Study:

• To create novel injectable microcapsule scaffolds for soft tissue regeneration.
• To evaluate the properties and cell viability within different microcapsule formulations.

Main Methods:

• Preparation of calcium alginate, calcium alginate/chitosan, calcium alginate/gelatin, and pectin/chitosan microcapsules via extrusion.
• Characterization of microcapsule morphology, size, and in vitro degradation.
• Encapsulation and assessment of mouse myoblast (C2C12) cell viability and migration.

Main Results:

• Microcapsules exhibited spherical morphology, with size dependent on polymeric composition.
• In vitro incubation showed initial swelling followed by weight loss, varying with formulation.
• Successful encapsulation of C2C12 cells was achieved; cells remained viable and migrated out after 7 days.

Conclusions:

• Alginate-based microcapsules are promising injectable scaffolds for soft tissue regeneration.
• The developed microcapsules support cell viability and facilitate cell migration for tissue repair.
• Formulation composition influences scaffold properties and degradation rates.