Aquaporin-1 and Osmosis: From Physiology to Precision in Peritoneal Dialysis.
| Autor: | Devuyst O; Mechanisms of Inherited Kidney Disorders, Institute of Physiology, University of Zurich, Zürich, Switzerland; and Cliniques universitaires Saint-Luc, UCLouvain, Brussels, Belgium. |
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| Jazyk: | angličtina |
| Zdroj: | Journal of the American Society of Nephrology : JASN [J Am Soc Nephrol] 2024 Nov 01; Vol. 35 (11), pp. 1589-1599. Date of Electronic Publication: 2024 Aug 26. |
| DOI: | 10.1681/ASN.0000000000000496 |
| Abstrakt: | The discovery of the aquaporin family of water channels has provided a molecular counterpart to the movement of water across biological membranes. The distribution of aquaporins in specific cell types, their selectivity and very high capacity for water permeation, and the control of their expression and/or trafficking are key to sustain osmosis in multiple tissues. Here, we review the convergent evidence demonstrating that aquaporin-1 (AQP1) facilitates water transport across endothelial cells in the peritoneal membrane, a key process for peritoneal dialysis-the leading modality of home-based dialysis therapy for patients with kidney failure. Genetic and pharmacologic studies in mouse and cell models indicated that AQP1 plays a critical role in crystalloid osmosis, with clinically relevant effects on water transport and risk of death and technique failure for patients on dialysis. By contrast, AQP1 plays no role in colloid osmosis. These studies substantiate potential strategies to improve free water transport and ultrafiltration in patients treated by peritoneal dialysis. (Copyright © 2024 by the American Society of Nephrology.) |
| Databáze: | MEDLINE |
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