Tracking HIV Rebound following Latency Reversal Using Barcoded HIV.

Tracking HIV Rebound following Latency Reversal Using Barcoded HIV.
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使用条形码HIV跟踪潜伏期抑制后的HIV反弹。

DOI:
10.1016/j.xcrm.2020.100162
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发表时间:
2020-12-22
期刊:
Cell reports. Medicine
影响因子:
--
通讯作者:
Zack JA
Zack JA
中科院分区:
其他
文献类型:
--
作者:
Marsden MD;Zhang TH;Du Y;Dimapasoc M;Soliman MSA;Wu X;Kim JT;Shimizu A;Schrier A;Wender PA;Sun R;Zack JA

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HIV潜伏期阻碍了单独抗逆转录病毒治疗(ART)的治愈。消除潜伏感染细胞的一种策略涉及通过潜伏逆转剂(LRA)诱导病毒蛋白表达,从而允许通过病毒致细胞病变效应或免疫效应机制杀死宿主细胞。在这里,我们结合联合收割机条形码HIV的方法和人源化小鼠模型,研究设计的,合成的蛋白激酶C调节LRA对HIV反弹的影响。我们发现,在ART期间给予这种化合物会导致ART停止后反弹延迟。此外,反弹病毒似乎由比对照处理的动物中出现的更少数量的独特条形码病毒组成,这表明LRA给药消除了一些可能导致病毒反弹过程的储库细胞。这些数据支持使用条形码病毒来研究反弹,并表明LRA可能有助于HIV治疗工作。已经构建并表征了基因条形码化的HIV群。该群在抗逆转录病毒(ART)治疗的人源化小鼠中形成潜伏库。在ART期间施用HIV潜伏逆转剂(LRA)延迟反弹,在ART期间施用LRA还减少反弹病毒的条形码多样性。构建条形码化的HIV群以研究HIV在人源化小鼠中的潜伏形成和反弹。他们发现,当抗逆转录病毒治疗停止时,PKC调节HIV潜伏逆转剂的施用延迟了反弹并减少了反弹病毒的遗传多样性,这表明水库的减少。
HIV latency prevents cure of infection with antiretroviral therapy (ART) alone. One strategy for eliminating latently infected cells involves the induction of viral protein expression via latency-reversing agents (LRAs), allowing killing of host cells by viral cytopathic effects or immune effector mechanisms. Here, we combine a barcoded HIV approach and a humanized mouse model to study the effects of a designed, synthetic protein kinase C modulating LRA on HIV rebound. We show that administration of this compound during ART results in a delay in rebound once ART is stopped. Furthermore, the rebounding virus appears composed of a smaller number of unique barcoded viruses than occurs in control-treated animals, suggesting that some reservoir cells that would have contributed virus to the rebound process are eliminated by LRA administration. These data support the use of barcoded virus to study rebound and suggest that LRAs may be useful in HIV cure efforts. A genetically barcoded HIV swarm has been constructed and characterized This swarm forms a latent reservoir in antiretroviral (ART)-treated humanized mice Administering an HIV latency-reversing agent (LRA) during ART delays rebound LRA administration during ART also reduces barcode diversity of rebounding virus Marsden et al. construct a barcoded HIV swarm to study HIV latency formation and rebound in humanized mice. They find that the administration of a PKC modulating HIV latency-reversing agent delays rebound and reduces the genetic diversity of rebounding virus when antiretroviral therapy is stopped, suggesting the reduction of the reservoir.
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