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

Autor: Xiangshuo Kong, Guisheng Wei, Nan Chen, Shudi Zhao, Yunwang Shen, Jianjia Zhang, Yang Li, Xiaoqun Zeng, Xiaofeng Wu
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: PLoS Pathogens, Vol 16, Iss 6, p e1008633 (2020)
Druh dokumentu: article
ISSN: 1553-7366
1553-7374
DOI: 10.1371/journal.ppat.1008633
Popis: 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 viruses.
Databáze: Directory of Open Access Journals
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