Reactivation of latent HIV-1 by inhibition of BRD4.

Reactivation of latent HIV-1 by inhibition of BRD4.
复制标题

通过抑制BRD4对潜在HIV-1的重新激活。

DOI:
10.1016/j.celrep.2012.09.008
复制
发表时间:
2012-10-25
期刊:
影响因子:
8.8
通讯作者:
Brass AL
Brass AL
中科院分区:
生物学1区
文献类型:
--
作者:
Zhu J;Gaiha GD;John SP;Pertel T;Chin CR;Gao G;Qu H;Walker BD;Elledge SJ;Brass AL

文献摘要

参考文献

被引文献

相似文献

HIV-1的繁殖依赖于许多宿主因子。然而,其他宿主因子可以拮抗HIV-1,并可能对病毒激活产生深远的影响。治疗HIV-1需要减少面对抗逆转录病毒治疗(ART)时仍然存在的潜伏病毒库。通过同源基因筛选,我们鉴定出含溴结构域4 (BRD4)是HIV-1复制的负调控因子。在细胞系模型中,通过RNA干扰或使用小分子抑制剂JQ1拮抗BRD4,既增加了前转录延伸,又减轻了HIV-1潜伏期。在许多情况下,JQ1与NF-κB激活剂Prostratin或PHA联合使用时,可增强原代人T细胞中潜伏HIV-1的体外再激活。这些数据与BRD4与病毒竞争HIV-1依赖因子(HDFs)的模型一致,并表明激活HDFs和拮抗HIV-1竞争因子的组合疗法可能有助于治愈HIV-1感染。
HIV-1 depends on many host factors for propagation. Other host factors, however, antagonize HIV-1 and may have profound effects on viral activation. Curing HIV-1 requires the reduction of latent viral reservoirs that remain in the face of antiretroviral therapy (ART). Using orthologous genetic screens, we identified bromodomain containing 4 (BRD4) as a negative regulator of HIV-1 replication. Antagonism of BRD4, via RNA interference or with a small molecule inhibitor, JQ1, both increased proviral transcriptional elongation and alleviated HIV-1 latency in cell line models. In multiple instances, JQ1 when used in combination with the NF-κB activators, Prostratin or PHA, enhanced the in vitro reactivation of latent HIV-1 in primary human T cells. These data are consistent with a model wherein BRD4 competes with the virus for HIV-1 dependency factors (HDFs) and suggests that combinatorial therapies that activate HDFs and antagonize HIV-1 competitive factors may be useful for curing HIV-1 infection.
选择性抑制BET溴结构域。
DOI: 10.1038/nature09504
发表时间: 2010-12-23
期刊: Nature
影响因子: 64.8
作者:
通讯作者: --
DOI: 10.1126/science.3313729
发表时间: 1987-11-06
期刊: SCIENCE
影响因子: 56.9
作者:
FOLKS, TM;JUSTEMENT, J;FAUCI, AS
通讯作者: FAUCI, AS
DOI: 10.1073/pnas.93.13.6377
发表时间: 1996-06-25
影响因子: 11.1
作者:
Emiliani, S;VanLint, C;Verdin, E
通讯作者: Verdin, E
DOI: 10.1016/s1097-2765(01)00314-8
发表时间: 2001-08-01
期刊: MOLECULAR CELL
影响因子: 16
作者:
Barboric, M;Nissen, RM;Peterlin, BM
通讯作者: Peterlin, BM
DOI: 10.1038/330489a0
发表时间: 1987-12-03
期刊: NATURE
影响因子: 64.8
作者:
KAO, SY;CALMAN, AF;PETERLIN, BM
通讯作者: PETERLIN, BM