Metabolic Control by DNA Tumor Virus-Encoded Proteins

Viruses co-opt a multitude of host cell metabolic processes in order to meet the energy and substrate requirements for successful viral replication. However, due to their limited coding capacity, viruses must enact most, if not all, of these metabolic changes by influencing the function of available...

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Main Authors: Martin A. Prusinkiewicz, Joe S. Mymryk
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Pathogens
Subjects:
Online Access:https://www.mdpi.com/2076-0817/10/5/560
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author Martin A. Prusinkiewicz
Joe S. Mymryk
author_facet Martin A. Prusinkiewicz
Joe S. Mymryk
author_sort Martin A. Prusinkiewicz
collection DOAJ
description Viruses co-opt a multitude of host cell metabolic processes in order to meet the energy and substrate requirements for successful viral replication. However, due to their limited coding capacity, viruses must enact most, if not all, of these metabolic changes by influencing the function of available host cell regulatory proteins. Typically, certain viral proteins, some of which can function as viral oncoproteins, interact with these cellular regulatory proteins directly in order to effect changes in downstream metabolic pathways. This review highlights recent research into how four different DNA tumor viruses, namely human adenovirus, human papillomavirus, Epstein–Barr virus and Kaposi’s associated-sarcoma herpesvirus, can influence host cell metabolism through their interactions with either MYC, p53 or the pRb/E2F complex. Interestingly, some of these host cell regulators can be activated or inhibited by the same virus, depending on which viral oncoprotein is interacting with the regulatory protein. This review highlights how MYC, p53 and pRb/E2F regulate host cell metabolism, followed by an outline of how each of these DNA tumor viruses control their activities. Understanding how DNA tumor viruses regulate metabolism through viral oncoproteins could assist in the discovery or repurposing of metabolic inhibitors for antiviral therapy or treatment of virus-dependent cancers.
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spelling doaj.art-0972ae0a66b6460baa65524c500abf602023-11-21T18:33:52ZengMDPI AGPathogens2076-08172021-05-0110556010.3390/pathogens10050560Metabolic Control by DNA Tumor Virus-Encoded ProteinsMartin A. Prusinkiewicz0Joe S. Mymryk1Department of Microbiology and Immunology, Western University, London, ON N6A 3K7, CanadaDepartment of Microbiology and Immunology, Western University, London, ON N6A 3K7, CanadaViruses co-opt a multitude of host cell metabolic processes in order to meet the energy and substrate requirements for successful viral replication. However, due to their limited coding capacity, viruses must enact most, if not all, of these metabolic changes by influencing the function of available host cell regulatory proteins. Typically, certain viral proteins, some of which can function as viral oncoproteins, interact with these cellular regulatory proteins directly in order to effect changes in downstream metabolic pathways. This review highlights recent research into how four different DNA tumor viruses, namely human adenovirus, human papillomavirus, Epstein–Barr virus and Kaposi’s associated-sarcoma herpesvirus, can influence host cell metabolism through their interactions with either MYC, p53 or the pRb/E2F complex. Interestingly, some of these host cell regulators can be activated or inhibited by the same virus, depending on which viral oncoprotein is interacting with the regulatory protein. This review highlights how MYC, p53 and pRb/E2F regulate host cell metabolism, followed by an outline of how each of these DNA tumor viruses control their activities. Understanding how DNA tumor viruses regulate metabolism through viral oncoproteins could assist in the discovery or repurposing of metabolic inhibitors for antiviral therapy or treatment of virus-dependent cancers.https://www.mdpi.com/2076-0817/10/5/560glycolysiscellular respirationmitochondriaoncovirusmetabolismMYC
spellingShingle Martin A. Prusinkiewicz
Joe S. Mymryk
Metabolic Control by DNA Tumor Virus-Encoded Proteins
Pathogens
glycolysis
cellular respiration
mitochondria
oncovirus
metabolism
MYC
title Metabolic Control by DNA Tumor Virus-Encoded Proteins
title_full Metabolic Control by DNA Tumor Virus-Encoded Proteins
title_fullStr Metabolic Control by DNA Tumor Virus-Encoded Proteins
title_full_unstemmed Metabolic Control by DNA Tumor Virus-Encoded Proteins
title_short Metabolic Control by DNA Tumor Virus-Encoded Proteins
title_sort metabolic control by dna tumor virus encoded proteins
topic glycolysis
cellular respiration
mitochondria
oncovirus
metabolism
MYC
url https://www.mdpi.com/2076-0817/10/5/560
work_keys_str_mv AT martinaprusinkiewicz metaboliccontrolbydnatumorvirusencodedproteins
AT joesmymryk metaboliccontrolbydnatumorvirusencodedproteins