Abstract
Autophagy, the main intracellular process of cytoplasmic material degradation, is involved in cell survival and death. Autophagy is regulated at various levels and novel modulators of its function are being continuously identified. An intriguing recent observation is that among these modulators is the sphingolipid metabolising enzyme, Acid Sphingomyelinase (A-SMase), already known to play a fundamental role in apoptotic cell death participating in several pathophysiological conditions. In this review we analyse and discuss the relationship between autophagy and A-SMase describing how A-SMase may regulate it and defining, for the first time, the existence of an A-SMase-autophagy axis. The imbalance of this axis plays a role in cancer, nervous system, cardiovascular, and hepatic disorders.
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Acknowledgments
This work was supported by “Ministero della Salute, Giovani Ricercatori 2011–2012” Grant to C.D.P. and “Ricerca corrente 2015” Grant to E.C.; “Ministero dell’Istruzione, Università e Ricerca, PRIN2010-2011” Grants to E.C. and D.C.; “Università di Milano, Giovani Ricercatori-Linea B” Grant to C.P.
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The authors declare that they have no conflict of interest.
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Perrotta, C., Cervia, D., De Palma, C. et al. The emerging role of Acid Sphingomyelinase in autophagy. Apoptosis 20, 635–644 (2015). https://doi.org/10.1007/s10495-015-1101-9
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DOI: https://doi.org/10.1007/s10495-015-1101-9