1403-Roles of PKM2 in Retinal Homeostasis and Survival

This research investigates the vital role of the PKM2 enzyme in maintaining retinal health and metabolic stability. By examining mouse models, the study reveals that PKM2 is essential for the survival and structural integrity of both photoreceptors and the retinal pigment epithelium (RPE). The authors demonstrate that a deficiency in PKM2 disrupts energy production, impairs the visual cycle, and causes the mislocalization of the protein rhodopsin. Furthermore, the findings suggest that the loss of this enzyme accelerates retinal degeneration, particularly in genetic backgrounds associated with Stargardt disease. Ultimately, the study highlights how the metabolic interdependence between different retinal layers is critical for preventing vision loss and understanding conditions like age-related macular degeneration.References:Rajala A, Rajala R, Trevino L J, et al. Interdependent roles of PKM2 in photoreceptors and RPE: implications for retinal degeneration[J]. Cell Death & Disease, 2026.前往小宇宙评论区与主播互动