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2014 ; 26
(ä): 22-9
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Epigenetic regulation of EBV persistence and oncogenesis
#MMPMID24468737
Tempera I
; Lieberman PM
Semin Cancer Biol
2014[Jun]; 26
(ä): 22-9
PMID24468737
show ga
Epigenetic mechanisms play a fundamental role in generating diverse and heritable
patterns of viral and cellular gene expression. Epstein-Barr virus (EBV) can
adopt a variety of gene expression programs that are necessary for long-term
viral persistence and latency in multiple host-cell types and conditions. The
latent viral genomes assemble into chromatin structures with different histone
and DNA modifications patterns that control viral gene expression. Variations in
nucleosome organization and chromatin conformations can also influence gene
expression by coordinating physical interactions between different regulatory
elements. The viral-encoded and host-cell factors that control these epigenetic
features are beginning to be understood at the genome-wide level. These
epigenetic regulators can also influence viral pathogenesis by expanding tissue
tropism, evading immune detection, and driving host-cell carcinogenesis. Here, we
review some of the recent findings and perspectives on how the EBV epigenome
plays a central role in viral latency and viral-associated carcinogenesis.