TY - JOUR
T1 - Chaperone mediated autophagy in the crosstalk of neurodegenerative diseases and metabolic disorders
AU - Alfaro, Iván E.
AU - Albornoz, Amelina
AU - Molina, Alfredo
AU - Moreno, José
AU - Cordero, Karina
AU - Criollo, Alfredo
AU - Budini, Mauricio
N1 - Publisher Copyright:
© 2007 - 2019 Frontiers Media S.A. All Rights Reserved.
PY - 2019
Y1 - 2019
N2 - Chaperone Mediated Autophagy (CMA) is a lysosomal-dependent protein degradation pathway. At least 30% of cytosolic proteins can be degraded by this process. The two major protein players of CMA are LAMP-2A and HSC70. While LAMP-2A works as a receptor for protein substrates at the lysosomal membrane, HSC70 specifically binds protein targets and takes them for CMA degradation. Because of the broad spectrum of proteins able to be degraded by CMA, this pathway has been involved in physiological and pathological processes such as lipid and carbohydrate metabolism, and neurodegenerative diseases, respectively. Both, CMA, and the mentioned processes, are affected by aging and by inadequate nutritional habits such as a high fat diet or a high carbohydrate diet. Little is known regarding about CMA, which is considered a common regulation factor that links metabolism with neurodegenerative disorders. This review summarizes what is known about CMA, focusing on its molecular mechanism, its role in protein, lipid and carbohydrate metabolism. In addition, the review will discuss how CMA could be linked to protein, lipids and carbohydrate metabolism within neurodegenerative diseases. Furthermore, it will be discussed how aging and inadequate nutritional habits can have an impact on both CMA activity and neurodegenerative disorders.
AB - Chaperone Mediated Autophagy (CMA) is a lysosomal-dependent protein degradation pathway. At least 30% of cytosolic proteins can be degraded by this process. The two major protein players of CMA are LAMP-2A and HSC70. While LAMP-2A works as a receptor for protein substrates at the lysosomal membrane, HSC70 specifically binds protein targets and takes them for CMA degradation. Because of the broad spectrum of proteins able to be degraded by CMA, this pathway has been involved in physiological and pathological processes such as lipid and carbohydrate metabolism, and neurodegenerative diseases, respectively. Both, CMA, and the mentioned processes, are affected by aging and by inadequate nutritional habits such as a high fat diet or a high carbohydrate diet. Little is known regarding about CMA, which is considered a common regulation factor that links metabolism with neurodegenerative disorders. This review summarizes what is known about CMA, focusing on its molecular mechanism, its role in protein, lipid and carbohydrate metabolism. In addition, the review will discuss how CMA could be linked to protein, lipids and carbohydrate metabolism within neurodegenerative diseases. Furthermore, it will be discussed how aging and inadequate nutritional habits can have an impact on both CMA activity and neurodegenerative disorders.
KW - CMA
KW - Carbohydrates
KW - Lipids
KW - Metabolism
KW - Neurodegeneration
UR - http://www.scopus.com/inward/record.url?scp=85064221429&partnerID=8YFLogxK
U2 - 10.3389/fendo.2018.00778
DO - 10.3389/fendo.2018.00778
M3 - Review article
AN - SCOPUS:85064221429
SN - 1664-2392
VL - 10
JO - Frontiers in Endocrinology
JF - Frontiers in Endocrinology
IS - JAN
ER -