Impaired nuclear import and viral incorporation of Vpr derived from a HIV long-term non-progressor.

Impaired nuclear import and viral incorporation of Vpr derived from a HIV long-term non-progressor.
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DOI:
10.1186/1742-4690-5-67
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发表时间:
2008-07-18
期刊:
影响因子:
3.3
通讯作者:
Jans DA
Jans DA
中科院分区:
医学2区
文献类型:
--
作者:
Caly L;Saksena NK;Piller SC;Jans DA

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我们先前报道了一个流行病学相关的HIV-1感染患者队列,其中一个长期非进展者(LTNP)感染了两个受体,然后表现出正常的疾病进展。在用GFP标记的哺乳动物细胞中,来自三个群组成员中的每一个的患者来源的vpr序列的表达揭示了唯一来自LTNP的Vpr核输入和病毒体掺入的显著减少,而来自两个进展接受者的Vpr显示正常的定位和病毒体掺入,这意味着有效的Vpr核输入和HIV疾病进展之间的联系。重要的是,LTNP中的F72 L点突变首次被鉴定为是导致Vpr核输入减少的唯一原因。
We previously reported an epidemiologically linked HIV-1 infected patient cohort in which a long-term non-progressor (LTNP) infected two recipients who then exhibited normal disease progression. Expression of patient-derived vpr sequences from each of the three cohort members in mammalian cells tagged with GFP revealed a significant reduction in Vpr nuclear import and virion incorporation uniquely from the LTNP, whereas Vpr from the two progressing recipients displayed normal localisation and virion incorporation, implying a link between efficient Vpr nuclear import and HIV disease progression. Importantly, an F72L point mutation in the LTNP was identified for the first time as being uniquely responsible for decreased Vpr nuclear import.
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