Dynamic chromatin accessibility profiling reveals changes in host genome organization in response to baculovirus infection

PLoS Pathogens
Xiangshuo KongXiaofeng Wu

Abstract

DNA viruses can hijack and manipulate the host chromatin state to facilitate their infection. Multiple lines of evidences reveal that DNA virus infection results in the host chromatin relocation, yet there is little known about the effects of viral infection on the architecture of host chromatin. Here, a combination of epigenomic, transcriptomic and biochemical assays were conducted to investigate the temporal dynamics of chromatin accessibility in response to Bombyx mori nucleopolyhedrovirus (BmNPV) infection. The high-quality ATAC-seq data indicated that progressive chromatin remodeling took place following BmNPV infection. Viral infection resulted in a more open chromatin architecture, along with the marginalization of host genome and nucleosome disassembly. Moreover, our results revealed that chromatin accessibility in uninfected cells was regulated by euchromatic modifications, whereas the viral-induced highly accessible chromatin regions were originally associated with facultative heterochromatic modification. Overall, our findings illustrate for the first time the organization and accessibility of host chromatin in BmNPV-infected cells, which lay the foundation for future studies on epigenomic regulation mediated by DNA ...Continue Reading

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Jun 30, 2021·Virus Genes·Keisuke ShojiSusumu Katsuma
Aug 11, 2021·Viruses·Salla MattolaMaija Vihinen-Ranta

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Datasets Mentioned

BETA
PRJNA549316
PRJNA628845
DRX016832

Methods Mentioned

BETA
ChIP-seq
transmission electron microscopy
confocal microscopy
PCA
RNA-seq
Hi-C
Illumina Sequencing
ChIPseq
electrophoresis
PCR

Software Mentioned

UCSC
BWA
limma
MACS2
HOMER
GraphPad Prism6
R package Limma
FastQC
ChIPseqSpikeInFree
STAR

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