Mechanisms of phosphate transport.
- Levi M Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington, DC, USA. Moshe.Levi@georgetown.edu.
- Gratton E Department of Biomedical Engineering, Laboratory for Fluorescence Dynamics, University of California-Irvine, Irvine, CA, USA.
- Forster IC Florey Institute of Neuroscience and Mental Health, Parkville, Victoria, Australia.
- Hernando N Institute of Physiology, University of Zurich, Zurich, Switzerland, and Swiss National Centres of Competence in Research, NCCR Kidney.CH, Zurich, Switzerland.
- Wagner CA Institute of Physiology, University of Zurich, Zurich, Switzerland, and Swiss National Centres of Competence in Research, NCCR Kidney.CH, Zurich, Switzerland.
- Biber J Institute of Physiology, University of Zurich, Zurich, Switzerland, and Swiss National Centres of Competence in Research, NCCR Kidney.CH, Zurich, Switzerland.
- Sorribas V Laboratory of Molecular Toxicology, Department of Toxicology, University of Zaragoza, Zaragoza, Spain.
- Murer H Institute of Physiology, University of Zurich, Zurich, Switzerland, and Swiss National Centres of Competence in Research, NCCR Kidney.CH, Zurich, Switzerland.
- 2019-06-07
Published in:
- Nature reviews. Nephrology. - 2019
English
Over the past 25 years, successive cloning of SLC34A1, SLC34A2 and SLC34A3, which encode the sodium-dependent inorganic phosphate (Pi) cotransport proteins 2a-2c, has facilitated the identification of molecular mechanisms that underlie the regulation of renal and intestinal Pi transport. Pi and various hormones, including parathyroid hormone and phosphatonins, such as fibroblast growth factor 23, regulate the activity of these Pi transporters through transcriptional, translational and post-translational mechanisms involving interactions with PDZ domain-containing proteins, lipid microdomains and acute trafficking of the transporters via endocytosis and exocytosis. In humans and rodents, mutations in any of the three transporters lead to dysregulation of epithelial Pi transport with effects on serum Pi levels and can cause cardiovascular and musculoskeletal damage, illustrating the importance of these transporters in the maintenance of local and systemic Pi homeostasis. Functional and structural studies have provided insights into the mechanism by which these proteins transport Pi, whereas in vivo and ex vivo cell culture studies have identified several small molecules that can modify their transport function. These small molecules represent potential new drugs to help maintain Pi homeostasis in patients with chronic kidney disease - a condition that is associated with hyperphosphataemia and severe cardiovascular and skeletal consequences.
- Language
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- English
- Open access status
- green
- Identifiers
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- DOI 10.1038/s41581-019-0159-y
- PMID 31168066
- Persistent URL
- https://folia.unifr.ch/global/documents/258885
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