Role of MiR-204 in controlling metabolic functions of the subretinal microglia.

ABSTRACT: Rationale: MicroRNA-204 (miR-204) is one of the most abundant miRNA species in the retinal pigment epithelium (RPE) and RPE-derived extracellular vesicles (EVs). Knockout (KO) of miR-204 leads to dysfunction and degeneration of both the RPE and the retina. In addition to previously reported retinal pathologies, we observed the accumulation of lipid-laden subretinal microglia in miR-204 KO mice. This study aimed to identify potential molecular targets of miR-204 involved in microglia lipid processing and to determine whether RPE-derived EVs can improve the function of miR-204-deficient retinal microglia. Methods: Lipid accumulation in microglia was detected by staining with LipidTox, a fluorescent dye specific for neutral lipids, followed by either flow cytometry analysis or d

SUBMITTER: Chen Y 

PROVIDER: S-EPMC12439270 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature