PCYT1A Hypophosphorylation Underlies Retinal Lipid Dysregulation in CERKL Retinitis Pigmentosa and Is Therapeutically Reversed by Phosphatidylcholine

Key Points

• The study aims to explore the role of PCYT1A hypophosphorylation in retinal lipid dysregulation in CERKL-deficient retinitis pigmentosa.
• Established dysregulated PC metabolism due to PCYT1A hypophosphorylation as a pathogenic factor.
• Identified PC supplementation as a metabolic therapy.
• Used a genetic framework of CERKL-deficiency to evaluate impacts.
• Documented that hypophosphorylation of PCYT1A leads to lipid dysregulation in retinal cells.
• Demonstrated that phosphatidylcholine supplementation reverses metabolic deficits.
• Indicates potential for PC supplementation as a treatment for CERKL-related retinal degeneration.