Cited by 30Nitric Oxide and Endothelin EffectsAdvanced Glycation End Products researchRedox biology and oxidative stress

Serum glucocorticoid inducible kinase (SGK)-1 protects endothelial cells against oxidative stress and apoptosis induced by hyperglycaemia

Ferrelli, Francesca, Pastore, Donatella, Capuani, Barbara, Lombardo, Marco F., Blot-Chabaud, Marcel, Coppola, Andrea, Basello, Katia, Galli, Angelica +13 more·2015·Acta Diabetologica

Abstract

Diabetic hyperglycaemia causes endothelial dysfunction mainly by impairing endothelial nitric oxide (NO) production. Moreover, hyperglycaemia activates several noxious cellular pathways including apoptosis, increase in reactive oxygen species (ROS) levels and diminishing Na(+)-K(+) ATPase activity which exacerbate vascular damage. Serum glucocorticoid kinase (SGK)-1, a member of the serine/threonine kinases, plays a pivotal role in regulating NO production through inducible NO synthase activation and other cellular mechanisms. Therefore, in this study, we aimed to investigate the protective role of SGK-1 against hyperglycaemia in human umbilical endothelial cells (HUVECs). We used retrovirus to infect HUVECs with either SGK-1, SGK-1Δ60 (lacking of the N-60 amino acids-increase SGK-1 activity) or SGK-1Δ60KD (kinase-dead constructs). We tested our hypothesis in vitro after high glucose and glucosamine incubation. Increase in SGK-1 expression and activity (SGK-1Δ60) resulted in higher production of NO, inhibition of ROS synthesis and lower apoptosis in endothelial cell after either hyperglycaemia or glucosamine treatments. Moreover, in this study, we showed increased GLUT-1 membrane translocation and Na(+)-K(+) ATPase activity in cell infected with SGK-1Δ60 construct. These results suggest that as in endothelial cells, an increased SGK-1 activity and expression reduces oxidative stress, improves cell survival and restores insulin-mediated NO production after different noxae stim…

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Authors
Ferrelli, F., Pastore, D., Capuani, B., Lombardo, M. F., Blot-Chabaud, M., Coppola, A., Basello, K., Galli, A., Donadel, G., Romano, M., Caratelli, S., Pacifici, F., Arriga, R., Di Daniele, N., Sbraccia, P., Sconocchia, G., Bellia, A., Tesauro, M., Federici, M., Della-Morte, D., & Lauro, D.
Affiliations
  • University of Rome Tor Vergata (IT)
  • Policlinico Tor Vergata (IT)
  • Istituto di Farmacologia Traslazionale (IT)
Corresponding author
Lauro, Davide
Venue
Acta Diabetologica
Published
2014-06-25
Volume
52
Issue
1
Pages
55-64
ISSN
  • 0940-5429 (ISSN-L)
  • 1432-5233
OpenAlex
W2083114966
Cited by
30
References
30
Citations by year
2025: 4 · 2024: 2 · 2023: 2 · 2022: 1 · 2021: 3 · 2020: 5 · 2019: 3 · 2017: 1 · 2016: 5 · 2015: 4
FWCI
2.22
Type
journal article
Language
en
Open access
closed
Locations
  • Acta Diabetologica (publishedVersion)
  • PubMed (publishedVersion)
  • Cineca Institutional Research Information System (Tor Vergata University) (submittedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Advanced Glycation End Products research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
Keywords
SGK1, endothelial dysfunction, hyperglycemia, oxidative stress, apoptosis, endothelial nitric oxide production, reactive oxygen species, Na+/K+-ATPase, glucosamine, diabetic vascular disease, human umbilical vein endothelial cells
MeSH terms
Serum-Glucocorticoid Regulated Kinases, Cell Line, Glucose, Humans, Hyperglycemia, Insulin, Nitric Oxide, Apoptosis, Protein Serine-Threonine Kinases, Immediate-Early Proteins, Oxidative Stress, Human Umbilical Vein Endothelial Cells

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