Methods and Technical Issues for Optimizing the Production of Hydrogels Containing Decellularized Wharton's Jelly

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Regenerative Medicine

Background:

• Bioinspired scaffolds are crucial for tissue regeneration, mimicking natural tissue.
• Previous alginate-DWJ scaffolds showed promise for intervertebral disc (IVD) regeneration.
• Optimization is needed for stable, anatomically shaped scaffolds for cartilage repair.

Purpose of the Study:

• To refine protocols for developing stable, anatomically shaped DWJ-based hydrogel scaffolds.
• To optimize scaffolds for articular cartilage tissue engineering applications.
• To characterize physicochemical and biological properties for joint degeneration strategies.

Main Methods:

• Development and refinement of hydrogel scaffold fabrication protocols using alginate and decellularized Wharton's jelly (DWJ).
• Characterization of scaffold physicochemical properties.
• Evaluation of biological effects using intervertebral disc (IVD) cells and macrophages.

Main Results:

• Optimized DWJ-based hydrogel scaffolds with stable, anatomically shaped geometries (millicylinders) were produced.
• Scaffolds demonstrated suitable physicochemical properties for tissue engineering.
• Biological assessments showed specific effects on IVD cells and macrophages.

Conclusions:

• The refined protocol facilitates the development of DWJ-based hydrogels for tissue engineering.
• These scaffolds show potential for new strategies in addressing joint degeneration.
• The system is adaptable for mechanical stimuli and cell reactivity evaluations.