Mitophagy in ophthalmic pathologies: Molecular mechanisms and therapeutic implications
Abstract
Mitophagy, a selective autophagic process responsible for the degradation of dysfunctional mitochondria, serves as a critical regulator of cellular homeostasis. Despite its emerging significance in ocular pathophysiology, comprehensive analyses bridging molecular mechanisms to clinical translation remain scarce. The retina, with its high metabolic demands and reliance on mitochondrial bioenergetics, is particularly vulnerable to mitophagic dysregulation, which has been mechanistically linked to the pathogenesis of major ophthalmic disorders. This review systematically elucidates the molecular architecture of mitophagy, focusing on its dual roles in disease progression and cytoprotection across glaucoma, age-related macular degeneration (AMD), and diabetic retinopathy (DR). By integrating mechanistic insights with therapeutic implications, we not only delineate conserved regulatory pathways (e.g., PINK1 [PTEN-induced kinase 1]/Parkin, BNIP3 [BCL2/adenovirus E1B 19 kDa interacting protein 3], FUNDC1 [FUN14 domain containing 1]) but also propose a roadmap for targeting mitophagic checkpoints through precision pharmacology and combinatorial regimens. Our synthesis underscores the urgency of translating mitophagy modulation into clinical strategies to address unmet needs in retinal degenerative diseases.
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