BET inhibitors RVX-208 and PFI-1 reactivate HIV-1 from latency.

BET inhibitors RVX-208 and PFI-1 reactivate HIV-1 from latency.
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BET 抑制剂 RVX-208 和 PFI-1 可重新激活潜伏期的 HIV-1

DOI:
10.1038/s41598-017-16816-1
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发表时间:
2017-11-30
期刊:
影响因子:
4.6
通讯作者:
Zhu H
Zhu H
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Lu P;Shen Y;Yang H;Wang Y;Jiang Z;Yang X;Zhong Y;Pan H;Xu J;Lu H;Zhu H

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静息CD4 + T细胞中持续存在的潜伏病毒库是治愈HIV - 1感染的主要障碍。迫切需要消除HIV - 1病毒库的有效策略。我们在此首次报道,两种含溴结构域和额外末端结构域(BET)抑制剂,即已进入多种心血管疾病Ⅱ期临床试验的RVX - 208,以及在肿瘤学中已被广泛研究的PFI - 1,能够激活潜伏的HIV - 1。RVX - 208和PFI - 1单独使用或与其他潜伏逆转剂联合使用,通过增加体外潜伏感染的Jurkat T细胞中细胞周期蛋白依赖性激酶9(CDK9)苏氨酸 - 186的磷酸化,上调正性转录延伸因子b(P - TEFb),从而有效地激活HIV - 1转录。这两种BET抑制剂还能在体外激活接受抗逆转录病毒疗法(cART)治疗的患者来源的静息CD4 + T细胞中的HIV - 1转录,且不影响整体免疫细胞的激活。我们的研究结果,结合先前的报道,进一步证实BET抑制剂是一组用于对抗HIV - 1潜伏以实现病毒根除的主要化合物。
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 cellsin vitro. The two BET inhibitors also reactivated HIV-1 transcription in cART treated patient-derived resting CD4+ T cellsex 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.
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