The Archer and the Prey: The Duality of PAF1C in Antiviral Immunity

In the ongoing arms race between virus and host, fine-tuned gene expression plays a critical role in antiviral signaling. However, viruses have evolved to disrupt this process and promote their own replication by targeting host restriction factors. Polymerase-associated factor 1 complex (PAF1C) is a...

Full description

Bibliographic Details
Main Authors: Matthew W. Kenaston, Priya S. Shah
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/15/5/1032
_version_ 1797598073852002304
author Matthew W. Kenaston
Priya S. Shah
author_facet Matthew W. Kenaston
Priya S. Shah
author_sort Matthew W. Kenaston
collection DOAJ
description In the ongoing arms race between virus and host, fine-tuned gene expression plays a critical role in antiviral signaling. However, viruses have evolved to disrupt this process and promote their own replication by targeting host restriction factors. Polymerase-associated factor 1 complex (PAF1C) is a key player in this relationship, recruiting other host factors to regulate transcription and modulate innate immune gene expression. Consequently, PAF1C is consistently targeted by a diverse range of viruses, either to suppress its antiviral functions or co-opt them for their own benefit. In this review, we delve into the current mechanisms through which PAF1C restricts viruses by activating interferon and inflammatory responses at the transcriptional level. We also highlight how the ubiquity of these mechanisms makes PAF1C especially vulnerable to viral hijacking and antagonism. Indeed, as often as PAF1C is revealed to be a restriction factor, viruses are found to have targeted the complex in reply.
first_indexed 2024-03-11T03:14:14Z
format Article
id doaj.art-35ec4fc0f4d54b9fa24f27297a42836d
institution Directory Open Access Journal
issn 1999-4915
language English
last_indexed 2024-03-11T03:14:14Z
publishDate 2023-04-01
publisher MDPI AG
record_format Article
series Viruses
spelling doaj.art-35ec4fc0f4d54b9fa24f27297a42836d2023-11-18T03:37:57ZengMDPI AGViruses1999-49152023-04-01155103210.3390/v15051032The Archer and the Prey: The Duality of PAF1C in Antiviral ImmunityMatthew W. Kenaston0Priya S. Shah1Department of Microbiology and Molecular Genetics, University of California, Davis, CA 95616, USADepartment of Microbiology and Molecular Genetics, University of California, Davis, CA 95616, USAIn the ongoing arms race between virus and host, fine-tuned gene expression plays a critical role in antiviral signaling. However, viruses have evolved to disrupt this process and promote their own replication by targeting host restriction factors. Polymerase-associated factor 1 complex (PAF1C) is a key player in this relationship, recruiting other host factors to regulate transcription and modulate innate immune gene expression. Consequently, PAF1C is consistently targeted by a diverse range of viruses, either to suppress its antiviral functions or co-opt them for their own benefit. In this review, we delve into the current mechanisms through which PAF1C restricts viruses by activating interferon and inflammatory responses at the transcriptional level. We also highlight how the ubiquity of these mechanisms makes PAF1C especially vulnerable to viral hijacking and antagonism. Indeed, as often as PAF1C is revealed to be a restriction factor, viruses are found to have targeted the complex in reply.https://www.mdpi.com/1999-4915/15/5/1032polymerase-associated factor 1 complex (PAF1C)antiviral immunitygene expressionvirus–host interactions
spellingShingle Matthew W. Kenaston
Priya S. Shah
The Archer and the Prey: The Duality of PAF1C in Antiviral Immunity
Viruses
polymerase-associated factor 1 complex (PAF1C)
antiviral immunity
gene expression
virus–host interactions
title The Archer and the Prey: The Duality of PAF1C in Antiviral Immunity
title_full The Archer and the Prey: The Duality of PAF1C in Antiviral Immunity
title_fullStr The Archer and the Prey: The Duality of PAF1C in Antiviral Immunity
title_full_unstemmed The Archer and the Prey: The Duality of PAF1C in Antiviral Immunity
title_short The Archer and the Prey: The Duality of PAF1C in Antiviral Immunity
title_sort archer and the prey the duality of paf1c in antiviral immunity
topic polymerase-associated factor 1 complex (PAF1C)
antiviral immunity
gene expression
virus–host interactions
url https://www.mdpi.com/1999-4915/15/5/1032
work_keys_str_mv AT matthewwkenaston thearcherandthepreythedualityofpaf1cinantiviralimmunity
AT priyasshah thearcherandthepreythedualityofpaf1cinantiviralimmunity
AT matthewwkenaston archerandthepreythedualityofpaf1cinantiviralimmunity
AT priyasshah archerandthepreythedualityofpaf1cinantiviralimmunity