Hyperglycemia‐Induced Microglial CTSS Disrupts Blood‐Retinal Barrier Integrity via PAR2‐Dependent Downregulation of Endothelial MFSD2A
ABSTRACT Background Diabetic retinopathy (DR), a leading cause of blindness in diabetes, involves dysregulated neuroimmune crosstalk. While microglial activation and endothelial dysfunction are established in DR, the molecular mechanisms linking innate immunity to blood‐retinal barrier (BRB) breakdown remain elusive. M...