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Autophagy in skeletal muscle
Author(s) -
Sandri Marco
Publication year - 2010
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/j.febslet.2010.01.056
Subject(s) - autophagy , skeletal muscle , microbiology and biotechnology , proteasome , lysosome , catabolism , protein degradation , biology , ubiquitin , protein turnover , chemistry , biochemistry , metabolism , endocrinology , protein biosynthesis , apoptosis , enzyme , gene
Muscle mass represents 40–50% of the human body and, in mammals, is one of the most important sites for the control of metabolism. Moreover, during catabolic conditions, muscle proteins are mobilized to sustain gluconeogenesis in the liver and to provide alternative energy substrates for organs. However, excessive protein degradation in the skeletal muscle is detrimental for the economy of the body and it can lead to death. The ubiquitin‐proteasome and autophagy‐lysosome systems are the major proteolytic pathways of the cell and are coordinately activated in atrophying muscles. However, the role and regulation of the autophagic pathway in skeletal muscle is still largely unknown. This review will focus on autophagy and discuss its beneficial or detrimental role for the maintenance of muscle mass.