Comparison of different decellularization methods for human anterior lens capsules

Area of Science:

• Ophthalmology
• Biomaterials Science
• Tissue Engineering

Background:

• Human anterior lens capsules (ALCs) show potential for treating various eye diseases.
• ALCs are also recognized as valuable scaffolds for ocular cell growth.
• Investigating effective decellularization methods for ALCs is crucial for their therapeutic applications.

Purpose of the Study:

• To evaluate different decellularization techniques for human anterior lens capsules (ALCs).
• To assess the efficacy of various solutions in removing lens epithelial cells (LECs) while preserving ALC structure.
• To determine the suitability of acellular ALCs as scaffolds for ocular cells.

Main Methods:

• Human ALCs were treated with 2% lidocaine, 10% sodium chloride, 50% glucose, or sterile water at 37°C.
• Decellularization effectiveness was evaluated using Trypan blue and alizarin red staining, H&E staining, and hydroxyproline assays.
• In vitro studies assessed the impact of acellular ALCs on cell viability and cell-tissue interactions.

Main Results:

• All tested solutions (lidocaine, sodium chloride, glucose, sterile water) effectively decellularized ALCs.
• 10% sodium chloride and sterile water demonstrated superior decellularization compared to lidocaine and glucose.
• Decellularization methods preserved the structural integrity of ALCs, with 10% sodium chloride showing better hydroxyproline retention.
• Acellular ALCs from both optimal methods supported cell adhesion in vitro.

Conclusions:

• 10% sodium chloride and sterile water are identified as optimal methods for decellularizing human anterior lens capsules.
• The resulting acellular ALCs are suitable scaffolds for ocular cells.
• Acellular ALCs may be directly used in autologous lens capsule transplantation, eliminating the need for resterilization.