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A Minireview on Vasopressin-regulated Aquaporin-2 in Kidney Collecting Duct Cells
Article in English | WPRIM | ID: wpr-16304
Responsible library: WPRO
ABSTRACT
The kidney collecting duct is an important renal tubular segment for the regulation of body water and salt homeostasis. Water reabsorption in the collecting duct cells is regulated by arginine vasopressin (AVP) via the vasopressin V2-receptor (V2R). AVP increases the osmotic water permeability of the collecting duct cells through aquaporin-2 (AQP2) and aquaporin-3 (AQP3). AVP induces the apical targeting of AQP2 and transcription of AQP2 gene in the kidney collecting duct principal cells. The signaling transduction pathways resulting in the AQP2 trafficking to the apical plasma membrane of the collecting duct principal cells, include AQP2 phosphorylation, RhoA phosphorylation, actin depolymerization and calcium mobilization, and the changes of AQP2 protein abundance in water balance disorders have been extensively studied. These studies elucidate the underlying cellular and molecular mechanisms of body water homeostasis and provide the basis for the treatment of body water balance disorders.
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Permeability / Phosphorylation / Body Water / Arginine Vasopressin / Vasopressins / Cell Membrane / Calcium / Actins / Aquaporins / Aquaporin 2 Language: English Journal: Electrolytes & Blood Pressure Year: 2015 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Permeability / Phosphorylation / Body Water / Arginine Vasopressin / Vasopressins / Cell Membrane / Calcium / Actins / Aquaporins / Aquaporin 2 Language: English Journal: Electrolytes & Blood Pressure Year: 2015 Type: Article