Vargas, JNS;
Hamasaki, M;
Kawabata, T;
Youle, RJ;
Yoshimori, T;
(2023)
The mechanisms and roles of selective autophagy in mammals.
Nature Reviews Molecular Cell Biology
, 24
pp. 167-185.
10.1038/s41580-022-00542-2.
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Abstract
Autophagy is a process that targets various intracellular elements for degradation. Autophagy can be non-selective — associated with the indiscriminate engulfment of cytosolic components — occurring in response to nutrient starvation and is commonly referred to as bulk autophagy. By contrast, selective autophagy degrades specific targets, such as damaged organelles (mitophagy, lysophagy, ER-phagy, ribophagy), aggregated proteins (aggrephagy) or invading bacteria (xenophagy), thereby being importantly involved in cellular quality control. Hence, not surprisingly, aberrant selective autophagy has been associated with various human pathologies, prominently including neurodegeneration and infection. In recent years, considerable progress has been made in understanding mechanisms governing selective cargo engulfment in mammals, including the identification of ubiquitin-dependent selective autophagy receptors such as p62, NBR1, OPTN and NDP52, which can bind cargo and ubiquitin simultaneously to initiate pathways leading to autophagy initiation and membrane recruitment. This progress opens the prospects for enhancing selective autophagy pathways to boost cellular quality control capabilities and alleviate pathology.
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