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- W2565280039 abstract "One of the first manifestations of cystinosis is a renal Fanconi syndrome, characterized by severe dysfunction of proximal tubule cells. This Review describes the pathogenesis of renal Fanconi syndrome in cystinosis, focusing on the importance of cystinosin in the maintenance of cellular homeostasis beyond its function in cystine transport. Cystinosis is an autosomal recessive metabolic disease that belongs to the family of lysosomal storage disorders. It is caused by a defect in the lysosomal cystine transporter, cystinosin, which results in an accumulation of cystine in all organs. Despite the ubiquitous expression of cystinosin, a renal Fanconi syndrome is often the first manifestation of cystinosis, usually presenting within the first year of life and characterized by the early and severe dysfunction of proximal tubule cells, highlighting the unique vulnerability of this cell type. The current therapy for cystinosis, cysteamine, facilitates lysosomal cystine clearance and greatly delays progression to kidney failure but is unable to correct the Fanconi syndrome. This Review summarizes decades of studies that have fostered a better understanding of the pathogenesis of the renal Fanconi syndrome associated with cystinosis. These studies have unraveled some of the early molecular changes that occur before the onset of tubular atrophy and identified a role for cystinosin beyond cystine transport, in endolysosomal trafficking and proteolysis, lysosomal clearance, autophagy and the regulation of energy balance. These studies have also led to the identification of new potential therapeutic targets and here, we outline the potential role of stem cell therapy for cystinosis and provide insights into the mechanism of haematopoietic stem cell-mediated kidney protection." @default.
- W2565280039 created "2017-01-06" @default.
- W2565280039 creator A5062133346 @default.
- W2565280039 creator A5077055662 @default.
- W2565280039 date "2016-12-19" @default.
- W2565280039 modified "2023-10-18" @default.
- W2565280039 title "The renal Fanconi syndrome in cystinosis: pathogenic insights and therapeutic perspectives" @default.
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