期刊
BIOMEDICINES
卷 11, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/biomedicines11061707
关键词
GS-9620; nicotinamide; latency-reversing agent; rhesus macaques; CD8(+) T cell response
Antiretroviral therapy can inhibit HIV replication but not completely cure it due to HIV persistence. The shock and kill strategy is commonly used to cure HIV, in which latency-reversing agents are used to trigger viral reactivation and enhance cellular immunity. Finding the right drug combination is important for clinical trials.
Antiretroviral therapy is capable of inhibiting HIV replication, but it fails to completely achieve a cure due to HIV persistence. The commonly used HIV cure approach is the shock and kill strategy, which employs latency-reversing agents to trigger viral reactivation and boost cellular immunity. Finding the appropriate drug combination for the shock and kill strategy would greatly facilitate clinical trials. The toll-like receptor (TLR) 7 agonist GS-9620 and nicotinamide (NAM) are reported as potential latency-reversing agents. Herein, we found the absence of viral reactivation when SHIVSF162P3-aviremic rhesus macaques were treated with GS-9620 monotherapy. However, our findings demonstrate that viral blips emerged in half of the macaques treated with the combination therapy of GS-9620 and NAM. Notably, an increase in the reactivation of the replication-competent latent virus was measured in monkeys treated with the combination therapy. These findings suggest that the GS-9620 and NAM combination could be used as a multipronged HIV latency stimulation approach, with potential for optimizing antiviral therapy design.
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