Cited by 124Blood Pressure and Hypertension StudiesRenin-Angiotensin System StudiesSodium Intake and Health

EMD638683, a Novel SGK Inhibitor with Antihypertensive Potency

Ackermann, Teresa F., Boini, Krishna M., Beier, Norbert, Scholz, Wolfgang, Fuchß, Thomas, Lang, Florian·2011·Cellular Physiology and Biochemistry

Abstract

Unlabelled The serum- and glucocorticoid-inducible kinase 1 (SGK1) is transcriptionally upregulated by mineralocorticoids and activated by insulin. The kinase enhances renal tubular Na(+)-reabsorption and accounts for blood pressure increase following high salt diet in mice made hyperinsulinemic by dietary fructose or fat. The present study describes the in vitro and in vivo efficacy of a novel SGK1 inhibitor (EMD638683). EMD638683 was tested in vitro by determination of SGK1-dependent phosphorylation of NDRG1 (N-Myc downstream-regulated gene 1) in human cervical carcinoma HeLa-cells. In vivo EMD638683 (4460 ppm in chow, i.e. approx. 600 mg/kg/day) was administered to mice drinking tap water or isotonic saline containing 10% fructose. Blood pressure was determined by the tail cuff method, and urinary electrolyte (flame photometry) concentrations determined in metabolic cages. In vitro testing disclosed EMD638683 as a SGK1 inhibitor with an IC50 of 3 μM. Within 24 hours in vivo EMD638683 treatment significantly decreased blood pressure in fructose/saline-treated mice but not in control animals or in SGK1 knockout mice. EMD638683 failed to alter the blood pressure in SGK1 knockout mice. Following chronic (4 weeks) fructose/high salt treatment, additional EMD638683 treatment again decreased blood pressure. EMD638683 thus abrogates the salt sensitivity of blood pressure in hyperinsulinism without appreciably affecting blood pressure in the absence of hyperinsulinism. EMD638683 te…

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Crossref · 10.1159/000331722

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Authors
Ackermann, T. F., Boini, K. M., Beier, N., Scholz, W., Fuchß, T., & Lang, F.
Affiliations
  • University of Tübingen (DE)
  • Virginia Commonwealth University (US)
  • Merck KGaA, Darmstadt (Germany) (DE)
Venue
Cellular Physiology and Biochemistry
Publisher
S. Karger AG
Published
2011
Volume
28
Issue
1
Pages
137-146
ISSN
  • 1015-8987 (ISSN-L)
  • 1421-9778
OpenAlex
W2083964872
Cited by
121
References
63
Citations by year
2026: 6 · 2025: 3 · 2024: 2 · 2023: 8 · 2022: 9 · 2021: 19 · 2020: 13 · 2019: 6 · 2018: 8 · 2017: 10 · 2016: 7 · 2015: 4 · 2014: 13 · 2013: 13
FWCI
5.92
Type
journal article
Language
en
Open access
closed
Locations
  • Cellular Physiology and Biochemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
Deutsche Forschungsgemeinschaft
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Renin-Angiotensin System Studies
  • Health Sciences › Nursing › Nutrition and Dietetics › Sodium Intake and Health
Keywords
SGK1 inhibitor, serum- and glucocorticoid-inducible kinase 1, antihypertensive drugs, high-salt diet, blood pressure, sodium excretion, type 2 diabetes, metabolic syndrome
MeSH terms
Serum-Glucocorticoid Regulated Kinases, N-myc Downstream-Regulated Gene 1 Protein, Animals, Antihypertensive Agents, Benzamides, Blood Pressure, Fructose, HeLa Cells, Humans, Hydrazines, Hypertension, Sodium, Sodium Chloride, Protein Serine-Threonine Kinases, Immediate-Early Proteins, Mice, Knockout, Cell Cycle Proteins, Protein Kinase Inhibitors, Intracellular Signaling Peptides and Proteins, Mice

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