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Review
, 86, 193-224

Proteasomal and Autophagic Degradation Systems

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Review

Proteasomal and Autophagic Degradation Systems

Ivan Dikic. Annu Rev Biochem.

Abstract

Autophagy and the ubiquitin-proteasome system are the two major quality control pathways responsible for cellular homeostasis. As such, they provide protection against age-associated changes and a plethora of human diseases. Ubiquitination is utilized as a degradation signal by both systems, albeit in different ways, to mark cargoes for proteasomal and lysosomal degradation. Both systems intersect and communicate at multiple points to coordinate their actions in proteostasis and organelle homeostasis. This review summarizes molecular details of how proteasome and autophagy pathways are functionally interconnected in cells and indicates common principles and nodes of communication that can be therapeutically exploited.

Keywords: UPS; aggrephagy; autophagy; chaperone; mitophagy; organelle homeostasis; p62–Keap1–Nrf2; proteasome; proteostasis; ubiquitination; xenophagy.

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