Sgk1-Dependent Stimulation of Cardiac Na+/H+Exchanger Nhe1 by Dexamethasone
Author(s) -
Jakob Voelkl,
Venkanna Pasham,
Mohamed Siyabeldin E. Ahmed,
Britta Walker,
Kalina Szteyn,
Dietmar Kuhl,
Bernhard Metzler,
Ioana Alesutan,
Florian Läng
Publication year - 2013
Publication title -
cellular physiology and biochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.486
H-Index - 87
eISSN - 1421-9778
pISSN - 1015-8987
DOI - 10.1159/000350120
Subject(s) - sgk1 , dexamethasone , stimulation , glucocorticoid , endocrinology , phosphorylation , medicine , messenger rna , glucocorticoid receptor , gene expression , chemistry , microbiology and biotechnology , biology , biochemistry , gene
The serum- and glucocorticoid-inducible kinase Sgk1 contributes to cardiac remodeling and development of heart failure, which is paralelled by Sgk1-dependent stimulation of the cardiac Na(+)/H(+) exchanger Nhe1. Glucocorticoids are powerful stimulators of Sgk1 expression and influence cardiac remodeling. The present study thus explored whether the glucocorticoid receptor agonist dexamethasone influenced cardiac Sgk1 expression, as well as activity, expression and phosphorylation at Ser(703) of the cardiac Na(+)/H(+) exchanger Nhe1.
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