Dendritic cells potently purge latent HIV-1 beyond TCR-stimulation, activating the PI3K-Akt-mTOR pathway
Dendritic cells potently purge latent HIV-1 beyond TCR-stimulation, activating the PI3K-Akt-mTOR pathway
复制标题
树突状细胞可有效清除 TCR 刺激之外的潜在 HIV-1,激活 PI3K-Akt-mTOR 通路
DOI:
10.1016/j.ebiom.2019.02.014
复制
发表时间:
2019
期刊:
影响因子:
11.1
通讯作者:
B. Berkhout
中科院分区:
文献类型:
--
作者:
T. van Montfort;Renée M. Van der Sluis;G. Darcis;D. Beaty;K. Groen;A. Pasternak;G. Pollakis;Monique A. Vink;E. M. Westerhout;Mohamed Hamdi;M. Bakker;Boas van der Putten;S. Jurriaans;Jan H Prins;R. Jeeninga;Adri A. M. Thomas;D. Speijer;B. Berkhout
BackgroundThe latent HIV-1 reservoir in treated patients primarily consists of resting memory CD4+T cells. Stimulating the T-cell receptor (TCR), which facilitates transition of resting into effector T cells, is the most effective strategy to purge these latently infected cells. Here we supply evidence that TCR-stimulated effector T cells still frequently harbor latent HIV-1.MethodsPrimary HIV-1 infected cells were used in a latency assay with or without dendritic cells (DCs) and reversion of HIV-1 latency was determined, in the presence or absence of specific pathway inhibitors.FindingsRenewed TCR-stimulation or subsequent activation with latency reversing agents (LRAs) did not overcome latency. However, interaction of infected effector cells with DCs triggered further activation of latent HIV-1. When compared to TCR-stimulation only, CD4+T cells from aviremic patients receiving TCR + DC-stimulation reversed latency more frequently. Such a "one-two punch" strategy seems ideal for purging the reservoir. We determined that DC contact activates the PI3K-Akt-mTOR pathway in CD4+T cells.InterpretationThis insight could facilitate the development of a novel class of potent LRAs that purge latent HIV beyond levels reached by T-cell activation.
登录
查看更多内容
影响因子:
158.5
作者:
Zhang, LQ;Ramratnam, B;Ho, DD
通讯作者:
Ho, DD
影响因子:
13.8
作者:
Mendoza, Michelle C.;Er, E. Emrah;Blenis, John
通讯作者:
Blenis, John
影响因子:
11.8
作者:
Spivak, Adam M.;Andrade, Adriana;Deeks, Steven G.
通讯作者:
Deeks, Steven G.
DOI:
10.17863/cam.8865
发表时间:
2017
期刊:
--
影响因子:
--
作者:
Fun A
通讯作者:
Fun A
影响因子:
15.9
作者:
Laird, Gregory M.;Bullen, C. Korin;Siliciano, Robert F.
通讯作者:
Siliciano, Robert F.