Emerging Lysosomal Functions for Photoreceptor Cell Homeostasis and Survival (26 December 2021)

Photo of Ivan Conte, PhD
Ivan Conte, PhD

AUTHORS: Manuela Santo1 and Ivan Conte1,2
1 Department of Biology, University of Naples Federico II, Strada Vicinale Cupa Cinthia, 26,  80126 Naples, Italy
2 Telethon Institute of Genetics and Medicine, Via Campi Flegrei 34, 80078 Pozzuoli, Italy

ABSTRACT: Lysosomes are membrane-bound cell organelles that respond to nutrient changes and are implicated in cell homeostasis and clearance mechanisms, allowing effective adaption to specific cellular needs.  The relevance of the lysosome has been elucidated in a number of different contexts.  Of these, the retina represents an interesting scenario to appreciate the various functions of this organelle in both physiological and pathological conditions.  Growing evidence suggests a role for lysosome-related mechanisms in retinal degeneration.  Abnormal lysosomal activation or inhibition has dramatic consequences on photoreceptor cell homeostasis and impacts extensive cellular function, which in turn affects vision.  Based on these findings, a series of therapeutic methods targeting lysosomal processes could offer treatment for blindness conditions.  In this publication, findings on membrane trafficking, subcellular organization, mechanisms by which lysosome/autophagy pathway impairment affects photoreceptor cell homeostasis and the recent advances on developing efficient lysosomal-based therapies for retinal disorders are reviewed.Ivan Cont

This study was conducted with IRRF Funds: Ivan Conte, PhD.

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Cells is an international, peer-reviewed, open access journal of cell biology, molecular biology, and biophysics, published semimonthly online by MDPI (Multidisciplinary Digital Publishing Institute, based in Basel, Switzerland)

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