Journal
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
Volume 10, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fcell.2022.917599
Keywords
DEAD-box proteins; HIV-1; viral RNA metabolism; DEAD-box protein inhibitors; novel antiretrovirals
Categories
Funding
- Dutch Aidsfonds [P-53302]
- Gilead Research Scholars award
- ZonMW [40-44600-98-333]
- Health Holland [LSHM19100-SGF]
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This review provides an overview of the functions and mechanisms of DEAD-box family proteins in HIV-1 vRNA metabolism. It discusses the implications of these interactions in viral infection, viral latency, and cell death, and speculates on the potential of DEAD-box protein inhibitors as therapeutics for controlling the HIV-1 pandemic.
In order to ensure viral gene expression, Human Immunodeficiency virus type-1 (HIV-1) recruits numerous host proteins that promote optimal RNA metabolism of the HIV-1 viral RNAs (vRNAs), such as the proteins of the DEAD-box family. The DEAD-box family of RNA helicases regulates multiple steps of RNA metabolism and processing, including transcription, splicing, nucleocytoplasmic export, trafficking, translation and turnover, mediated by their ATP-dependent RNA unwinding ability. In this review, we provide an overview of the functions and role of all DEAD-box family protein members thus far described to influence various aspects of HIV-1 vRNA metabolism. We describe the molecular mechanisms by which HIV-1 hijacks these host proteins to promote its gene expression and we discuss the implications of these interactions during viral infection, their possible roles in the maintenance of viral latency and in inducing cell death. We also speculate on the emerging potential of pharmacological inhibitors of DEAD-box proteins as novel therapeutics to control the HIV-1 pandemic.
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