Stimulation of HIV-1-specific cytolytic T lymphocytes facilitates elimination of latent viral reservoir after virus reactivation.
Stimulation of HIV-1-specific cytolytic T lymphocytes facilitates elimination of latent viral reservoir after virus reactivation.
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DOI:
10.1016/j.immuni.2012.01.014
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发表时间:
2012-03-23
期刊:
影响因子:
32.4
通讯作者:
Siliciano RF
中科院分区:
文献类型:
--
作者:
Shan L;Deng K;Shroff NS;Durand CM;Rabi SA;Yang HC;Zhang H;Margolick JB;Blankson JN;Siliciano RF
Highly active antiretroviral therapy (HAART) suppresses HIV-1 replication but cannot eliminate the virus because HIV-1 establishes latent infection. Interruption of HAART leads to a rapid rebound of viremia. Life-long treatment is therefore required. Efforts to purge the latent reservoir have focused on reactivating latent proviruses without inducing global T-cell activation. However, the killing of the infected cells after virus reactivation, which is essential for elimination of the reservoir, has not been assessed. Here we show that after reversal of latency in an in vitro model, infected resting CD4+ T cells survived despite viral cytopathic effects, even in the presence of autologous cytolytic T-lymphocytes (CTL) from most patients on HAART. Antigen-specific stimulation of patient CTLs led to efficient killing of infected cells. These results demonstrate that stimulating HIV-1-specific CTLs prior to reactivating latent HIV-1 may be essential for successful eradication efforts and should be considered in future clinical trials.
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