A guide to the regulation of selective autophagy receptors

A Gubas, I Dikic - The FEBS journal, 2022 - Wiley Online Library
A Gubas, I Dikic
The FEBS journal, 2022Wiley Online Library
Autophagy is a highly conserved catabolic process cells use to maintain their homeostasis
by degrading misfolded, damaged and excessive proteins, nonfunctional organelles, foreign
pathogens and other cellular components. Hence, autophagy can be nonselective, where
bulky portions of the cytoplasm are degraded upon stress, or a highly selective process,
where preselected cellular components are degraded. To distinguish between different
cellular components, autophagy employs selective autophagy receptors, which will link the …
Autophagy is a highly conserved catabolic process cells use to maintain their homeostasis by degrading misfolded, damaged and excessive proteins, nonfunctional organelles, foreign pathogens and other cellular components. Hence, autophagy can be nonselective, where bulky portions of the cytoplasm are degraded upon stress, or a highly selective process, where preselected cellular components are degraded. To distinguish between different cellular components, autophagy employs selective autophagy receptors, which will link the cargo to the autophagy machinery, thereby sequestering it in the autophagosome for its subsequent degradation in the lysosome. Autophagy receptors undergo post‐translational and structural modifications to fulfil their role in autophagy, or upon executing their role, for their own degradation. We highlight the four most prominent protein modifications – phosphorylation, ubiquitination, acetylation and oligomerisation – that are essential for autophagy receptor recruitment, function and turnover. Understanding the regulation of selective autophagy receptors will provide deeper insights into the pathway and open up potential therapeutic avenues.
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