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Elevated Glucose Levels Favor SARS-CoV-2 Infection and Monocyte Response through a HIF-1α/Glycolysis-Dependent Axis


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Made available in DSpace on 2020-12-12T02:25:21Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-09-01

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Fundo de Apoio ao Ensino, à Pesquisa e Extensão, Universidade Estadual de Campinas

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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-1ɑ may have great therapeutic potential for the development of novel drugs to treat COVID-19. Diabetic people with uncontrolled blood glucose levels have a greater risk to develop severe COVID-19 disease. Codo et al. show that elevated glucose levels and glycolysis promote SARS-CoV-2 (CoV-2) replication and cytokine production in monocytes through a mitochondrial ROS/hypoxia-inducible factor-1α dependent pathway, resulting in T cell dysfunction and epithelial cell death.

Laboratory of Immunometabolism Department of Genetics Evolution Microbiology and Immunology Institute of Biology University of Campinas

Department of Genetics Evolution Microbiology and Immunology Institute of Biology University of Campinas

Department of Biochemistry and Tissue Biology Institute of Biology University of Campinas

Department of Genetics at Ribeirao Preto Medical School University of Sao Paulo, Ribeirao Preto

Department of Clinical and Toxicological analyses School of Pharmaceutical Sciences University of São Paulo

Brazilian Biosciences National Laboratory (LNBio), Campinas

Department of Animal Biology Institute of Biology University of Campinas, Campinas

Department of Internal Medicine School of Medical Sciences University of Campinas, Campinas

Department of Clinical Medicine School of Medical Sciences University of Campinas, Campinas

Hematology and Hemotherapy Center University of Campinas, Campinas

Obesity and Comorbidities Research Center (OCRC) University of Campinas

Experimental Medicine Research Cluster (EMRC) University of Campinas

Department of Structural and Functional Biology Institute of Biosciences São Paulo State University (UNESP), Botucatu

D'Or Institute for Research and Education (IDOR)

Instituto Nacional de Biomarcadores em Neuropsiquiatria Conselho Nacional de Desenvolvimento Científico e Tecnológico

Department of Structural and Functional Biology Institute of Biosciences São Paulo State University (UNESP), Botucatu

FAPESP: 20/04579-7

FAPESP: 2015/15626-8

FAPESP: 2016/18031-8

FAPESP: 2016/23328-0

FAPESP: 2017/01184-9

FAPESP: 2018/22505-0

FAPESP: 2019/00098-7

FAPESP: 2019/06372-3

FAPESP: 2020/04522-5

FAPESP: 2020/04558-0

FAPESP: 2020/04583-4

FAPESP: 2020/04746-0

FAPESP: 2020/04919-2

Fundo de Apoio ao Ensino, à Pesquisa e Extensão, Universidade Estadual de Campinas: 2274/20

Document Type Journal article
Language English
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