Impact of Viral Factors on Subcellular Distribution and RNA Export Activity of HIV-1 Rev in Astrocytes 1321N1

被引:8
作者
Banerjee, Atoshi [1 ]
Benjamin, Ronald [1 ]
Banerjee, Sharmistha [1 ]
机构
[1] Univ Hyderabad, Sch Life Sci, Dept Biochem, Hyderabad 500134, Andhra Pradesh, India
来源
PLOS ONE | 2013年 / 8卷 / 09期
关键词
IMMUNODEFICIENCY-VIRUS TYPE-1; POLYMERASE-CHAIN-REACTION; CENTRAL-NERVOUS-SYSTEM; CELL-LINE; SITU HYBRIDIZATION; BLOOD MONOCYTES; HOST PROTEINS; BRAIN-CELLS; INFECTION; REPLICATION;
D O I
10.1371/journal.pone.0072905
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
CNS associated cells are permissive to HIV-1 infection, but poor in virus production due to attenuated Rev activity. The temporal and the spatial distribution of Rev in human astrocyte 1321N1 and glioblastoma GO-G-CCM were monitored for explaining the reduced Rev activity and low viral production during HIV-1 infection. Rev remained localized to the nuclei of these cells upon infection, attenuating its export activity, as manifested by low copy number of RRE-containing viral-mRNA in the cytoplasm of these cells. In contrast to infection, when Rev alone was transiently expressed, it localized in the cytoplasm of 1321N1. The localization changed to the nucleus when Rev was expressed in the presence of other viral proteins through pro-viral DNA pNL4-3. This study, for the first time, revealed the impact of other HIV-1 proteins apart from host factors in regulating the subcellular localization of Rev in astrocytes and hence the fate of HIV-1 infection in these cells.
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页数:10
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