Barbara Tedesco, Leen Vendredy, Elias Adriaenssens, Marta Cozzi, Bob Asselbergh, Valeria Crippa, Riccardo Cristofani, Paola Rusmini, Veronica Ferrari, Elena Casarotto, Marta Chierichetti, Francesco Mina, Paola Pramaggiore, Mariarita Galbiati, Margherita Piccolella, Jonathan Baets, Femke Baeke, Riet De Rycke, Vincent Mouly, Tommaso Laurenzi, Ivano Eberini, Anna Vihola, Bjarne Udd, Lan Weiss, Virginia Kimonis, Vincent Timmerman, Angelo Poletti
Chaperone-assisted selective autophagy (CASA) is a highly selective pathway for the disposal of misfolding and aggregating proteins. In muscle, CASA assures muscle integrity by favoring the turnover of structural components damaged by mechanical strain. In neurons, CASA promotes the removal of aggregating substrates. A crucial player of CASA is HSPB8 (heat shock protein family B (small) member 8), which acts in a complex with HSPA, their cochaperone BAG3, and the E3 ubiquitin ligase STUB1. Recently, four novel HSPB8 frameshift (fs) gene mutations have been linked to neuromyopathies, and encode carboxy-terminally mutated HSPB8, sharing a common C-terminal extension...
August 2023: Autophagy