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4-Phenylquinoline-8-amine Induces HIV-1 Reactivation and Apoptosis in Latently HIV-1 Infected Cells.

Biochemical and biophysical research communications(2023)

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摘要
Combinational antiretroviral therapy (cART) dramatically suppresses the viral load to undetectable levels in human immunodeficiency virus (HIV)-infected patients. However, HIV-1 reservoirs in CD4+T cells and myeloid cells, which can evade cART and host antiviral immune systems, are still significant obstacles to HIV-1 eradication. The "Shock and Kill" approach using latently-reversing agents (LRAs) is therefore currently developing strategies for effective HIV-1 reactivation from latency and inducing cell death. Here, we performed small-molecular chemical library screening with monocytic HIV-1 latently-infected model cells, THP-1 Nluc #225, and identified 4-phenylquinoline-8-amine (PQA) as a novel LRA candidate. PQA induced efficient HIV-1 reactivation in combination with PKC agonists including Prostratin and showed a similar tendency for HIV-1 activation in primary HIV-1 reservoirs. Furthermore, PQA induced killing of HIV-1 latently-infected cells. RNA-sequencing analysis revealed PQA had different functional mechanisms from PKC agonists, and oxidative stress-inducible genes including DDIT3 or CTSD were only involved in PQA-mediated cell death. In summary, PQA is a potential LRA lead compound that exerts novel functions related to HIV-1 activation and apoptosis-mediated cell death to eliminate HIV-1 reservoirs.
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关键词
Latency,Transcription,LRA,Apoptosis,Oxidative stress
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