Autophagy And Age-Related Eye Diseases
BIOMED RESEARCH INTERNATIONAL(2019)
Abstract
Background. Autophagy is a catabolic process that depends on the lysosome. It is usually used to maintain cellular homeostasis, survival and development by degrading abnormal substances and dysfunctional organelles, especially when the cell is exposed to starvation or other stresses. Increasing studies have reported that autophagy is associated with various eye diseases, of which aging is one of the important factors. Objective. To summarize the functional and regulatory role of autophagy in ocular diseases with aging, and discuss the possibility of autophagy-targeted therapy in age-related diseases. Methods. PubMed searches were performed to identify relevant articles published mostly in the last 5 years. The key words were used to retrieve including "autophagy", "aging", "oxidative stress AND autophagy", "dry eye AND autophagy", "corneal disease AND autophagy", "glaucoma AND autophagy", "cataract AND autophagy", "AMD AND autophagy", "cardiovascular diseases AND autophagy", "diabetes AND autophagy". After being classified and assessed, the most relevant full texts in English were chosen. Results. Apart from review articles, more than two research articles for each age-related eye diseases related to autophagy were retrieved. We only included the most relevant and recent studies for summary and discussion. Conclusion. Autophagy has both protective and detrimental effects on the progress of age-related eye diseases. Different types of studies based on certain situations in vitro showed distinct results, which do not necessarily coincide with the actual situation in human bodies completely. It means the exact role and regulatory function of autophagy in ocular diseases remains largely unknown. Although autophagy as a potential therapeutic target has been proposed, many problems still need to be solved before it applies to clinical practice.
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