Journal
ANNUAL REVIEW OF VIROLOGY, VOL 8
Volume 8, Issue -, Pages 373-391Publisher
ANNUAL REVIEWS
DOI: 10.1146/annurev-virology-091919-102416
Keywords
viruses; viral insulins; metabolism; glycolysis; lipid metabolism; glutaminolysis
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Funding
- NIDDK NIH HHS [K01 DK117967] Funding Source: Medline
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Viral infections manipulate host metabolic pathways to increase replication and mimic host hormones to affect the endocrine system. These mechanisms create a multidimensional network of interactions between host and viral proteins.
Over the past decades, there have been tremendous efforts to understand the cross-talk between viruses and host metabolism. Several studies have elucidated the mechanisms through which viral infections manipulate metabolic pathways including glucose, fatty acid, protein, and nucleotide metabolism. These pathways are evolutionarily conserved across the tree of life and extremely important for the host's nutrient utilization and energy production. In this review, we focus on host glucose, glutamine, and fatty acid metabolism and highlight the pathways manipulated by the different classes of viruses to increase their replication. We also explore a new system of viral hormones in which viruses mimic host hormones to manipulate the host endocrine system. We discuss viral insulin/IGF-1-like peptides and their potential effects on host metabolism. Together, these pathogenesis mechanisms targeting cellular signaling pathways create a multidimensional network of interactions between host and viral proteins. Defining and better understanding these mechanisms will help us to develop new therapeutic tools to prevent and treat viral infections.
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