Journal
INTERNATIONAL JOURNAL OF BIOCHEMISTRY & CELL BIOLOGY
Volume 36, Issue 12, Pages 2420-2434Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.biocel.2004.04.010
Keywords
lysosomes; aging; lysosomal storage disorders; nephropathy; neurodegeneration
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Funding
- NIA NIH HHS [AG021904, AG19834] Funding Source: Medline
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In contrast to the classically described in bulk lysosomal degradation, the first evidence for selective degradation of cytosolic proteins in lysosomes was presented more than 20 years ago. Throughout this time, we have gained a better understanding about this process, now known as chaperone-mediated autophagy (CMA). The identification of new substrates for CMA and novel components, in both the cytosol and the lysosomes, along with better insights on how CMA is regulated, have all helped to shape the possible physiological roles of CMA. We review here different intracellular functions of CMA that arise from its unique characteristics when compared to other forms of autophagy. In view of these functions, we discuss the relevance of the changes in CMA activity in aging and in different pathological conditions. (C) 2004 Elsevier Ltd. All rights reserved.
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