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JOURNAL ARTICLE

Dilazep synergistically reactivates latent HIV-1 in latently infected cells

Hanxian Zeng, Sijie Liu, Pengfei Wang, Xiying Qu, Haiyan Ji, Xiaohui Wang, Xiaoli Zhu, Zhishuo Song, Xinyi Yang, Zhongjun Ma, Huanzhang Zhu
Molecular Biology Reports 2014, 41 (11): 7697-704
25091947
The long-lived latently infected cells persist in spite of prolonged highly active anti-retroviral therapy and present a major barrier to a cure of human immunodeficiency virus type 1 (HIV-1) infection. Elimination of this reservoir requires reactivation of the latent virus. None of the current agents can safely and effectively reactivate latent HIV-1 reservoirs. Dilazep, a nucleoside transport inhibitor, is used to treat ischemic dysfunction. However, little is known about the effect of dilazep in inducing HIV expression in latently infected cells. Using the Jurkat T cell model of HIV-1 latency, we found that dilazep effectively reactivates latent HIV-1 gene expression in a dose manner. We observed that dilazep synergistically reactivated latent HIV-1 transcription with valproic acid. We also found that dilazep activates viral latency without inducing cell surface activation markers CD25 and CD69 activation. In summary, dilazep, alone or in combination with VPA, could be useful in future eradication strategies.

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