A spliced latency-associated VZV transcript maps antisense to the viral transactivator gene 61.

A spliced latency-associated VZV transcript maps antisense to the viral transactivator gene 61.
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DOI:
10.1038/s41467-018-03569-2
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发表时间:
2018-03-21
影响因子:
16.6
通讯作者:
Breuer J
Breuer J
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Depledge DP;Ouwendijk WJD;Sadaoka T;Braspenning SE;Mori Y;Cohrs RJ;Verjans GMGM;Breuer J

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水痘-带状疱疹病毒(VZV)是一种α疱疹病毒,在全世界超过90%的人的神经元中建立终身潜伏感染,在三分之一的人中重新激活,引起带状疱疹,使人衰弱的疼痛和中风。VZV如何保持延迟仍不清楚。在这里,使用潜伏感染的人三叉神经节(TG)的超深病毒富集的RNA测序,我们证明了一致的剪接VZV mRNA的表达,反义VZV开放阅读框61(ORF 61)。剪接的VZV潜伏相关转录本(VLT)在人TG神经元中表达,并编码一种在体外生产性感染细胞和带状疱疹皮损中具有晚期动力学的蛋白质。而多个可变剪接VLT亚型(VLTly)在裂解感染过程中表达,一个单一的独特的VLT亚型,它特异性地抑制ORF 61基因表达的共转染细胞,在潜伏VZV感染的人TG占主导地位。VLT的发现将VZV与其他更好表征的人类和动物嗜神经性α疱疹病毒联系起来,并提供了对VZV潜伏期的见解。水痘-带状疱疹病毒(VZV)在大多数人群中建立终身感染,但潜伏期的机制仍不清楚。在这里,作者使用超深RNA测序,富集病毒RNA,潜伏感染的人三叉神经节,并确定剪接,潜伏相关的VZV mRNA。
Varicella-zoster virus (VZV), an alphaherpesvirus, establishes lifelong latent infection in the neurons of >90% humans worldwide, reactivating in one-third to cause shingles, debilitating pain and stroke. How VZV maintains latency remains unclear. Here, using ultra-deep virus-enriched RNA sequencing of latently infected human trigeminal ganglia (TG), we demonstrate the consistent expression of a spliced VZV mRNA, antisense to VZV open reading frame 61 (ORF61). The spliced VZV latency-associated transcript (VLT) is expressed in human TG neurons and encodes a protein with late kinetics in productively infected cells in vitro and in shingles skin lesions. Whereas multiple alternatively spliced VLT isoforms (VLTly) are expressed during lytic infection, a single unique VLT isoform, which specifically suppresses ORF61 gene expression in co-transfected cells, predominates in latently VZV-infected human TG. The discovery of VLT links VZV with the other better characterized human and animal neurotropic alphaherpesviruses and provides insights into VZV latency. Varicella-zoster virus (VZV) establishes lifelong infection in the majority of the population, but mechanisms underlying latency remain unclear. Here, the authors use ultra-deep RNA sequencing, enriched for viral RNAs, of latently infected human trigeminal ganglia and identify a spliced, latency-associated VZV mRNA.
DOI: 10.1093/molbev/mst210
发表时间: 2014-02
影响因子: 10.7
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影响因子: 5.4
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