Cellular microRNA and P bodies modulate host-HIV-1 interactions.

Cellular microRNA and P bodies modulate host-HIV-1 interactions.
复制标题

DOI:
10.1016/j.molcel.2009.06.003
复制
发表时间:
2009-06-26
期刊:
影响因子:
16
通讯作者:
Rana, Tariq M.
Rana, Tariq M.
中科院分区:
生物学1区
文献类型:
--
作者:
Nathans, Robin;Chu, Chia-ying;Serquina, Anna Kristina;Lu, Chih-Chung;Cao, Hong;Rana, Tariq M.

文献摘要

参考文献

被引文献

相似文献

微小RNA(microRNAs,miRNAs)是一种长度约为22个核苷酸的非编码RNA,可组装成RNA诱导沉默复合物(RNA-induced silencing complex,RISC),定位于细胞质的亚结构P体。通过miRNA和靶mRNA之间的碱基对互补性,miRNA特异性地抑制几种mRNA的转录后表达。在这里,我们报告说,HIV-1 mRNA与RISC蛋白相互作用,破坏P-体结构增强病毒的生产和感染性。在HIV-1感染的人T淋巴细胞中,我们鉴定了一种高度丰富的miRNA,miR-29 a,其特异性靶向HIV-1 3 '-UTR区域。抑制miR-29 a增强了HIV-1病毒的产生和感染性,而表达miR-29模拟物抑制了病毒复制。我们还发现,特定的miR-29 a-HIV-1 mRNA相互作用增强了病毒mRNA与RISC和P体蛋白的结合。因此,我们提供了一个单一宿主miRNA调节HIV-1产生和感染性的例子。这些研究强调了miRNA和P体在调节宿主细胞与HIV-1和可能的其他病毒相互作用中的重要性。
MicroRNAs (miRNAs), ~22-nucleotide noncoding RNAs, assemble into RNA-induced silencing complexes (RISC) and localize to cytoplasmic substructures called P-bodies. Dictated by base-pair complementarity between miRNA and a target mRNA, miRNAs specifically repress posttranscriptional expression of several mRNAs. Here, we report that HIV-1 mRNA interacts with RISC proteins and that disrupting P-body structures enhances viral production and infectivity. In HIV-1-infected human T lymphocytes, we identified a highly abundant miRNA, miR-29a, which specifically targets the HIV-1 3’-UTR region. Inhibiting miR-29a enhanced HIV-1 viral production and infectivity, whereas expressing a miR-29 mimic suppressed viral replication. We also found that specific miR-29a-HIV-1 mRNA interactions enhance viral mRNA association with RISC and P-body proteins. Thus, we provide an example of a single host miRNA regulating HIV-1 production and infectivity. These studies highlight the significance of miRNAs and P-bodies in modulating host cell interactions with HIV-1 and possibly other viruses.
DOI: 10.1038/nature03702
发表时间: 2005-06-09
期刊: NATURE
影响因子: 64.8
作者:
Lu, J;Getz, G;Golub, TR
通讯作者: Golub, TR
DOI: 10.4161/rna.4.2.4640
发表时间: 2007-04-01
期刊: RNA BIOLOGY
影响因子: 4.1
作者:
Beitzinger, Michaela;Peters, Lasse;Meister, Gunter
通讯作者: Meister, Gunter
DOI: 10.1093/nar/gkn076
发表时间: 2008-04-01
影响因子: 14.9
作者:
Ouellet, Dominique L.;Plante, Isabelle;Provost, Patrick
通讯作者: Provost, Patrick
DOI: 10.1126/science.1113329
发表时间: 2005-09-02
期刊: SCIENCE
影响因子: 56.9
作者:
Jopling, CL;Yi, MK;Sarnow, P
通讯作者: Sarnow, P
DOI: 10.1038/nature00939
发表时间: 2002-08-08
期刊: NATURE
影响因子: 64.8
作者:
Sheehy, AM;Gaddis, NC;Malim, MH
通讯作者: Malim, MH