TLR5 stimulation is sufficient to trigger reactivation of latent HIV-1 provirus in T lymphoid cells and activate virus gene expression in central memory CD4+ T cells.
TLR5 stimulation is sufficient to trigger reactivation of latent HIV-1 provirus in T lymphoid cells and activate virus gene expression in central memory CD4+ T cells.
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TLR5 刺激足以触发 T 淋巴细胞中潜伏的 HIV-1 原病毒的重新激活,并激活中央记忆 CD4 T 细胞中的病毒基因表达。
DOI:
10.1016/j.virol.2009.04.019
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发表时间:
2009
期刊:
影响因子:
3.7
通讯作者:
M. Tremblay
中科院分区:
文献类型:
--
作者:
S. Thibault;Michael Imbeault;M. Tardif;M. Tremblay
When effector CD4+T cells carrying integrated HIV-1 proviruses revert back to a resting memory state, the virus can remain silent in those cells for years. Following re-exposure to the nominal antigen or in response to other stimuli (e.g. pro-inflammatory cytokines), these cells can begin to produce virus. Here we demonstrate that TLR5 stimulation induces activation of NF-κB and reactivate latent HIV-1 in CD4+T lymphoid cells. Interestingly, we report also that TLR5 engagement leads to virus gene expression in quiescent central memory CD4+T cells, a cell population recognized as a major reservoir in infected individuals. This study supports the hypothesis that translocation of microbes that can engage pathogen recognition receptors might play a dominant role in chronic immune activation seen in HIV-1-infected individuals and promote virus replication and dissemination.
影响因子:
1
作者:
Alexaki A;Liu Y;Wigdahl B
通讯作者:
Wigdahl B
影响因子:
20.3
作者:
Kulkosky, J;Culnan, DM;Pomerantz, RJ
通讯作者:
Pomerantz, RJ