Combinations of isoform-targeted histone deacetylase inhibitors and bryostatin analogues display remarkable potency to activate latent HIV without global T-cell activation.

Combinations of isoform-targeted histone deacetylase inhibitors and bryostatin analogues display remarkable potency to activate latent HIV without global T-cell activation.
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DOI:
10.1038/s41598-017-07814-4
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发表时间:
2017-08-07
期刊:
影响因子:
4.6
通讯作者:
Kyei GB
Kyei GB
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Albert BJ;Niu A;Ramani R;Marshall GR;Wender PA;Williams RM;Ratner L;Barnes AB;Kyei GB

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目前针对HIV/AIDS的抗逆转录病毒疗法(ART)通过减少病毒载量和增加CD 4计数来减缓疾病进展。然而,由于CD 4 + T细胞前病毒库的持续存在,ART不能治愈活性病毒。通过施用潜伏期逆转剂(LRA)(例如组蛋白脱乙酰酶(HDAC)抑制剂和蛋白激酶C(PKC)调节剂)的协同组合来消除这些储库,提供了一种有希望的策略来减少(如果不是根除的话)病毒储库。在这里,我们证明了largazole及其类似物是异构体靶向的组蛋白脱乙酰酶抑制剂和有效的LRA。值得注意的是,这些异构体靶向HDAC抑制剂与PKC调节剂,即苔藓抑素-1类似物(bryologs)协同作用。这种前所未有的LRA组合的实施诱导HIV-1再活化至无与伦比的水平,并避免静息CD 4 + T细胞内的整体T细胞活化。
Current antiretroviral therapy (ART) for HIV/AIDS slows disease progression by reducing viral loads and increasing CD4 counts. Yet ART is not curative due to the persistence of CD4+ T-cell proviral reservoirs that chronically resupply active virus. Elimination of these reservoirs through the administration of synergistic combinations of latency reversing agents (LRAs), such as histone deacetylase (HDAC) inhibitors and protein kinase C (PKC) modulators, provides a promising strategy to reduce if not eradicate the viral reservoir. Here, we demonstrate that largazole and its analogues are isoform-targeted histone deacetylase inhibitors and potent LRAs. Significantly, these isoform-targeted HDAC inhibitors synergize with PKC modulators, namely bryostatin-1 analogues (bryologs). Implementation of this unprecedented LRA combination induces HIV-1 reactivation to unparalleled levels and avoids global T-cell activation within resting CD4+ T-cells.
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