A cell-intrinsic inhibitor of HIV-1 reverse transcription in CD4(+) T cells from elite controllers.

A cell-intrinsic inhibitor of HIV-1 reverse transcription in CD4(+) T cells from elite controllers.
复制标题

来自精英控制器的CD4(+)T细胞中HIV-1逆转录的细胞内抑制剂。

DOI:
10.1016/j.chom.2014.05.011
复制
发表时间:
2014-06-11
影响因子:
30.3
通讯作者:
Lichterfeld M
Lichterfeld M
中科院分区:
医学1区
文献类型:
--
作者:
Leng J;Ho HP;Buzon MJ;Pereyra F;Walker BD;Yu XG;Chang EJ;Lichterfeld M

文献摘要

参考文献

被引文献

相似文献

HIV-1逆转录是药物抑制病毒复制的主要靶点,但以临床显著方式阻断HIV-1逆转录的细胞内在机制尚不清楚。我们发现有效的HIV-1逆转录依赖于宿主细胞周期蛋白依赖性激酶(CDK)2在高度保守的Threonin残基上对病毒逆转录酶的磷酸化。CDK 2依赖性磷酸化增加了病毒逆转录酶的效力和稳定性,并增强了病毒适应性。有趣的是,p21,一种在来自“精英控制者”的CD 4 + T细胞中上调的细胞内在CDK抑制剂,有效地抑制HIV-1逆转录酶的CDK 2依赖性磷酸化,并显著降低病毒逆转录的功效。这些数据表明,p21可以通过抑制支持HIV-1复制的宿主辅助因子来间接阻断HIV-1逆转录,并确定在具有HIV-1复制自然控制的人中有效靶向的病毒脆弱性位点。
HIV-1 reverse transcription represents the predominant target for pharmacological inhibition of viral replication, but cell-intrinsic mechanisms that can block HIV-1 reverse transcription in a clinically significant way are poorly defined. We find that effective HIV-1 reverse transcription depends on the phosphorylation of viral reverse transcriptase by host cyclin-dependent kinase (CDK) 2 at a highly conserved Threonin residue. CDK2-dependent phosphorylation increased the efficacy and stability of viral reverse transcriptase and enhanced viral fitness. Interestingly, p21, a cell-intrinsic CDK inhibitor that is upregulated in CD4+ T cells from “elite controllers”, potently inhibited CDK2-dependent phosphorylation of HIV-1 reverse transcriptase and significantly reduced the efficacy of viral reverse transcription. These data suggest that p21 can indirectly block HIV-1 reverse transcription by inhibiting host co-factors supporting HIV-1 replication, and identify sites of viral vulnerability that are effectively targeted in persons with natural control of HIV-1 replication.
DOI: 10.1007/978-1-59745-170-3_5
发表时间: 2009
期刊: Methods in molecular biology (Clifton, N.J.)
影响因子: --
作者:
Mbisa JL;Delviks-Frankenberry KA;Thomas JA;Gorelick RJ;Pathak VK
通讯作者: Pathak VK
DOI: 10.1172/jci44539
发表时间: 2011-04-01
影响因子: 15.9
作者:
Chen, Huabiao;Li, Chun;Lichterfeld, Mathias
通讯作者: Lichterfeld, Mathias
DOI: 10.1038/nm.2102
发表时间: 2010-03-01
期刊: NATURE MEDICINE
影响因子: 82.9
作者:
Manganaro, Lara;Lusic, Marina;Giacca, Mauro
通讯作者: Giacca, Mauro
DOI: 10.1016/0962-8924(93)90011-o
发表时间: 1993-01-01
影响因子: 19
作者:
Nigg, Erich A.
通讯作者: Nigg, Erich A.
DOI: 10.1074/jbc.m111349200
发表时间: 2002-09-13
影响因子: 4.8
作者:
Deng, LW;Ammosova, T;Nekhai, S
通讯作者: Nekhai, S