Persistently adenovirus-infected lymphoid cells express microRNAs derived from the viral VAI and especially VAII RNA.

Persistently adenovirus-infected lymphoid cells express microRNAs derived from the viral VAI and especially VAII RNA.
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DOI:
10.1016/j.virol.2013.08.024
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发表时间:
2013-12
期刊:
影响因子:
3.7
通讯作者:
Cullen, Bryan R.
Cullen, Bryan R.
中科院分区:
医学3区
文献类型:
--
作者:
Furuse, Yuki;Ornelles, David A.;Cullen, Bryan R.

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人腺病毒可以在体内淋巴组织中建立潜伏性感染,并在培养的淋巴细胞系中建立持续性感染。在裂解性感染期间,腺病毒表达源自病毒非编码RNA VAI,特别是VAII的微小RNA(miRNA)。在这里,我们证明了持续腺病毒感染的人BJAB细胞也产生主要来自病毒VAII RNA的腺病毒衍生的miRNA,其占所有RNA诱导沉默复合物(RISC)相关RNA的约2.7%。然而,我们的数据表明,主要的VAII衍生的病毒RNA的5'端,因此其种子序列,不同于以前报道的。我们的数据表明,腺病毒在慢性感染的淋巴细胞中表达病毒miRNA,并提高了这些可能有助于维持先前在体内粘膜相关淋巴组织中观察到的潜伏性腺病毒感染的淋巴细胞的可能性。
Human adenovirus can establish latent infections in lymphoid tissues in vivo and persistent, infections in cultured lymphoid cell lines. During lytic infection, adenovirus expresses microRNAs (miRNAs) derived from the viral non-coding RNAs VAI and, especially, VAII. Here, we demonstrate that persistently adenovirus-infected human BJAB cells also produce adenovirus-derived miRNAs primarily derived from the viral VAII RNA, which contributes ~2.7% of all RNA-induced silencing complex (RISC)-associated RNAs. However, our data indicate that the 5’ end of the predominant VAII-derived viral RNA, and hence its seed sequence, differs from what has been previously reported. Our data demonstrate that adenovirus expresses viral miRNAs in chronically infected lymphoid cells and raise the possibility that these may contribute to the maintenance of the latently adenovirus-infected lymphoid cells previously observed in mucosal-associated lymphoid tissues in vivo.
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