The rapidly evolving view of lysosomal storage diseases
Open Access
- 18 January 2021
- journal article
- review article
- Published by Springer Science and Business Media LLC in EMBO Molecular Medicine
- Vol. 13 (2), e12836
- https://doi.org/10.15252/emmm.202012836
Abstract
Lysosomal storage diseases are a group of metabolic disorders caused by deficiencies of several components of lysosomal function. Most commonly affected are lysosomal hydrolases, which are involved in the breakdown and recycling of a variety of complex molecules and cellular structures. The understanding of lysosomal biology has progressively improved over time. Lysosomes are no longer viewed as organelles exclusively involved in catabolic pathways, but rather as highly dynamic elements of the autophagic‐lysosomal pathway, involved in multiple cellular functions, including signaling, and able to adapt to environmental stimuli. This refined vision of lysosomes has substantially impacted on our understanding of the pathophysiology of lysosomal disorders. It is now clear that substrate accumulation triggers complex pathogenetic cascades that are responsible for disease pathology, such as aberrant vesicle trafficking, impairment of autophagy, dysregulation of signaling pathways, abnormalities of calcium homeostasis, and mitochondrial dysfunction. Novel technologies, in most cases based on high‐throughput approaches, have significantly contributed to the characterization of lysosomal biology or lysosomal dysfunction and have the potential to facilitate diagnostic processes, and to enable the identification of new therapeutic targets.Funding Information
- Fondazione Telethon (TGM16CB6)
- H2020 European Research Council (694282)
- National Institutes of Health (R01‐NS078072)
- Associazione Italiana per la Ricerca sul Cancro
- Associazione Italiana Rett
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