Nuclear sensing of viral DNA, epigenetic regulation of herpes simplex virus infection, and innate immunity.
Nuclear sensing of viral DNA, epigenetic regulation of herpes simplex virus infection, and innate immunity.
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DOI:
10.1016/j.virol.2015.02.009
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发表时间:
2015-05
期刊:
影响因子:
3.7
通讯作者:
Knipe, David M.
中科院分区:
文献类型:
--
作者:
Knipe, David M.
Herpes simplex virus (HSV) undergoes a lytic infection in epithelial cells and a latent infection in neuronal cells, and epigenetic mechanisms play a major role in the differential gene expression under the two conditions. Herpes viron DNA is not associated with histones but is rapidly loaded with heterochromatin upon entry into the cell. Viral proteins promote reversal of the epigenetic silencing in epithelial cells while the viral latency-associated transcript promotes additional heterochromatin in neuronal cells. The cellular sensors that initiate the chromatinization of foreign DNA have not been fully defined. IFI16 and cGAS are both essential for innate sensing of HSV DNA, and new evidence shows how they work together to initiate innate signaling. IFI16 also plays a role in the heterochromatinization of HSV DNA, and this review will examine how IFI16 integrates epigenetic regulation and innate sensing of foreign viral DNA to show how these two responses are related.
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