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BET Inhibitors RVX-208 and PFI-1 Reactivate HIV-1 From Latency

BET Inhibitors RVX-208 and PFI-1 Reactivate HIV-1 From Latency

Panpan Lu, Yinzhong Shen, He Yang, Yanan Wang, Zhengtao Jiang, Xinyi Yang, Yangcheng Zhong, Hanyu Pan, Jianqing Xu, Hongzhou Lu, Huanzhang Zhu

Sci Rep. 2017 Nov 30;7(1):16646.

PMID: 29192216

Abstract:

Persistent latent reservoir in resting CD4+ T cells is a major obstacle in curing HIV-1 infection. Effective strategies for eradication of the HIV-1 reservoir are urgently needed. We report here for the first time that two BET inhibitors, RVX-208, which has entered phase II clinical trials for diverse cardiovascular disorders, and PFI-1, which has been widely studied in oncology, can reactivate HIV-1 from latency. RVX-208 and PFI-1 treatment alone or in combination with other latency reversing agents efficiently reactivated HIV-1 transcription through an up-regulation of P-TEFb by increasing CDK9 Thr-186 phosphorylation in latently infected Jurkat T cells in vitro. The two BET inhibitors also reactivated HIV-1 transcription in cART treated patient-derived resting CD4+ T cells ex vivo, without influence on global immune cell activation. Our findings, in combination with previous reports, further confirm that BET inhibitors are a group of leading compounds for combating HIV-1 latency for viral eradication.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP1403764726	PFI-1		1403764-72-6	Price

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