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The role of PKB, SGK1, Nedd4-2,and mTOR in the regulation of NaPi-lla

 

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  • Product Description
 

Phosphate homeostasis is of critical importance for a wide variety of functions and is a function of intestinal absorption and renal elimination. Renal tubular phosphate absorption is accomplished by the Na+, phosphate cotransporter NaPi IIa. The mammalian target of rapamycin mTOR is known to stimulate a variety of transport mechanisms. The present study thus explored the impact of Akt/PKB, SGK1, Nedd4-2 and mTOR on the regulation of NaPi-IIa. For this purpose the NaPi-IIa was expressed in Xenopus oocytes with or without PKB/Akt, SGK1, Nedd4-2 and mTOR and Na+, phosphate transport was determined by dual electrode voltage clamp. In a second series of experiments, the effect of rapamycin was analysed in mice. The in vivo administration of rapamycin for 3 days resulted in phosphaturia in mice despite a tendency of plasma phosphate concentration to decrease. The present observations underlie, Akt2/PKBá, SGK1, and Nedd4-2 play a role in the acute regulation of NaPi-IIa and thus contribute to the maintenance of phosphate balance and adequate mineralization of bone. In addition mTOR contributes to the regulation of renal phosphate transport and rapamycin thus influences phosphate balance.

Product Specifications
SKU :COC97363
AuthorMiribane D‰rmaku-Sopjani
LanguageEnglish
BindingPaperback
Number of Pages68
Publishing Year2011-04-13T00:00:00.000
ISBN978-3639349122
Edition1 st
Book TypeBiophysics
Country of ManufactureIndia
Product BrandNot defined
Product Packaging InfoBox
In The Box1 Piece
Product First Available On ClickOnCare.com2015-08-18 00:00:00
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