Elevated Glucose Levels Favor SARS-CoV-2 Infection and Monocyte Response through a HIF-1α/Glycolysis-Dependent Axis.
Cell Metab
; 32(3): 437-446.e5, 2020 09 01.
Article
in English
| MEDLINE | ID: covidwho-670096
ABSTRACT
COVID-19 can result in severe lung injury. It remained to be determined why diabetic individuals with uncontrolled glucose levels are more prone to develop the severe form of COVID-19. The molecular mechanism underlying SARS-CoV-2 infection and what determines the onset of the cytokine storm found in severe COVID-19 patients are unknown. Monocytes and macrophages are the most enriched immune cell types in the lungs of COVID-19 patients and appear to have a central role in the pathogenicity of the disease. These cells adapt their metabolism upon infection and become highly glycolytic, which facilitates SARS-CoV-2 replication. The infection triggers mitochondrial ROS production, which induces stabilization of hypoxia-inducible factor-1α (HIF-1α) and consequently promotes glycolysis. HIF-1α-induced changes in monocyte metabolism by SARS-CoV-2 infection directly inhibit T cell response and reduce epithelial cell survival. Targeting HIF-1É may have great therapeutic potential for the development of novel drugs to treat COVID-19.
Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Pneumonia, Viral
/
Blood Glucose
/
Monocytes
/
Coronavirus Infections
/
Diabetes Complications
/
Hypoxia-Inducible Factor 1, alpha Subunit
/
Betacoronavirus
Type of study:
Prognostic study
Topics:
Long Covid
Limits:
Adult
/
Female
/
Humans
/
Male
/
Middle aged
Language:
English
Journal:
Cell Metab
Journal subject:
Metabolism
Year:
2020
Document Type:
Article
Affiliation country:
J.cmet.2020.07.007
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