Abstract
ABSTRACT Protein aggregates have a strong correlation with the pathogenesis of multiple human pathologies represented by neurodegenerative diseases. One type of selective autophagy, known as aggrephagy, can selectively degrade protein aggregates. A recent study from Ge lab reported the TRiC subunit CCT2 (chaperonin containing TCP1 subunit 2) as the first identified specific aggrephagy receptor in mammals. The switch of CCT2ʹs role from a chaperonin to a specific aggrephagy receptor is achieved by CCT2 monomer formation. CCT2 functions independently of ubiquitin and the TRiC complex to facilitate the autophagic clearance of solid protein aggregates. This study provides the intriguing possibility that CCT2, as a specific aggrephagy receptor, might be an important target for the treatment of various diseases associated with protein aggregation.
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