Alkylphosphocholines for intraocular lens coating

Area of Science:

• Ophthalmology
• Biomaterials Science
• Cell Biology

Background:

• Intraocular lenses (IOLs) are crucial for vision restoration after cataract surgery.
• Preventing posterior capsule opacification, often caused by lens epithelial cell (LEC) proliferation, remains a clinical challenge.
• Alkylphosphocholines (APCs) are a class of compounds with potential biomaterial applications.

Purpose of the Study:

• To evaluate the efficacy of alkylphosphocholine (APC)-coated intraocular lenses (IOLs) in inhibiting human lens epithelial cell (LEC) proliferation in vitro.
• To assess the biocompatibility of APC with the human corneal endothelium using an organ culture model.

Main Methods:

• Six types of foldable IOLs were coated with APC and compared to uncoated controls.
• Proliferating human LECs were cultured with the coated IOLs, and cell survival was assessed using a tetrazolium-dye reduction assay.
• Human donor corneas were incubated with varying concentrations of APC to evaluate corneal endothelial cell viability.

Main Results:

• APC-coated IOLs significantly attenuated human LEC proliferation (P=.001).
• Hydrophilic acrylic IOLs coated with APC showed superior inhibition of LEC proliferation compared to hydrophobic acrylic or silicone IOLs (P=.001).
• APCs were well-tolerated by the corneal endothelium up to a concentration of 1 mM in organ culture.

Conclusions:

• APCs are suitable for IOL coating without requiring linker molecules.
• APC-coated IOLs demonstrate potential for inhibiting LEC proliferation.
• The study confirms the good biocompatibility of APCs with human donor corneas in an organ culture setting.