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The Fatty Acid Lipid Metabolism Nexus in COVID-19
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Journal Article
The Fatty Acid Lipid Metabolism Nexus in COVID-19
2021
Overview
Enteric symptomology seen in early-stage severe acute respiratory syndrome (SARS)-2003 and COVID-19 is evidence of virus replication occurring in the intestine, liver and pancreas. Aberrant lipid metabolism in morbidly obese individuals adversely affects the COVID-19 immune response and increases disease severity. Such observations are in line with the importance of lipid metabolism in COVID-19, and point to the gut as a site for intervention as well as a therapeutic target in treating the disease. Formation of complex lipid membranes and palmitoylation of coronavirus proteins are essential during viral replication and assembly. Inhibition of fatty acid synthase (FASN) and restoration of lipid catabolism by activation of AMP-activated protein kinase (AMPK) impede replication of coronaviruses closely related to SARS-coronavirus-2 (CoV-2). In vitro findings and clinical data reveal that the FASN inhibitor, orlistat, and the AMPK activator, metformin, may inhibit coronavirus replication and reduce systemic inflammation to restore immune homeostasis. Such observations, along with the known mechanisms of action for these types of drugs, suggest that targeting fatty acid lipid metabolism could directly inhibit virus replication while positively impacting the patient’s response to COVID-19.
Publisher
MDPI AG,MDPI
Subject
/ AMP-activated protein kinase
/ AMP-Activated Protein Kinases - metabolism
/ AMP-Activated Protein Kinases - pharmacology
/ Antiviral Agents - pharmacology
/ Antiviral Agents - therapeutic use
/ COVID-19
/ Digestive System - drug effects
/ endoplasmic reticulum stress response
/ Fatty Acid Synthases - antagonists & inhibitors
/ Fatty Acid Synthases - metabolism
/ Humans
/ Kinases
/ Lipids
/ liver
/ mTORC1
/ Obesity
/ Pancreas
/ patients
/ Review
/ Severe acute respiratory syndrome
/ SREBP-1
