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HIV-1 latency remains the primary obstacle to the eradication of this virus. The current latency-reversing agents cannot effectively and specifically eliminate latent HIV-1 reservoirs. Therefore, better approaches are urgently needed. In this study, we describe a novel strategy to reactivate latent HIV-1 using zinc-finger transcription factors composed of designer zinc-finger proteins and the transcriptional activation domain VP64. For the first time, we demonstrate that ZF-VP64 with HIV-1 long terminal repeat (LTR) promoter-specific affinity could significantly reactivate HIV-1 expression from latently infected cells without altering cell proliferation or cell cycle progression. We also provide evidence that the reactivation of HIV-1 by ZF-VP64 occurs through specific binding to the 5'-LTR promoter. Our results demonstrate the potential of this novel approach for anti-HIV-1 latency therapy.

Specific reactivation of latent HIV-1 with designer zinc-finger transcription factors targeting the HIV-1 5′-LTR promoter