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HIV-Proteins-Associated CNS Neurotoxicity, Their Mediators, and Alternative Treatments

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Abstract

Human immunodeficiency virus (HIV)-infected people's livelihoods are gradually being prolonged with the use of combined antiretroviral therapy (ART). Conversely, despite viral suppression by ART, the symptoms of HIV-associated neurocognitive disorder (HAND) endure. HAND persists because ART cannot really permanently confiscate the virus from the body. HAND encompasses a variety of conditions based on clinical presentation and severity level, comprising asymptomatic neurocognitive impairment, moderate neurocognitive disorder, and HIV-associated dementia. During the early stages of HIV infection, inflammation compromises the blood–brain barrier, allowing toxic virus, infected monocytes, macrophages, T-lymphocytes, and cellular products from the bloodstream to enter the brain and eventually the entire central nervous system. Since there are no resident T-lymphocytes in the brain, the virus will live for decades in macrophages and astrocytes, establishing a reservoir of infection. The HIV proteins then inflame neurons both directly and indirectly. The purpose of this review is to provide a synopsis of the effects of these proteins on the central nervous system and conceptualize avenues to be considered in mitigating HAND. We used bioinformatics repositories extensively to simulate the transcription factors that bind to the promoter of the HIV-1 protein and possibly could be used as a target to circumvent HIV-associated neurocognitive disorders. In the same vein, a protein–protein interaction complex was also deduced from a Search Tool for the Retrieval of Interacting Genes. In conclusion, this provides an alternative strategy that could be used to avert HAND.

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Abbreviations

AIDS:

Acquired immune deficiency syndrome

ANI:

Asymptomatic neurocognitive impairment

ART:

Antiretroviral therapy

CNS:

Central nervous system

CSF:

Cerebral spinal fluid

ENV:

Envelope

EPD:

Eukaryotic promoter database

ERK:

Extracellular signal-regulated kinase ½

GAG:

Group-specific antigen

gp120:

Glycoprotein 120

HAART:

Highly active antiretroviral therapy

HAD:

HIV-associated dementia

HAND:

HIV-associated neurocognitive disorders

HIV:

Human immunodeficiency virus

LTR:

HIV long terminal repeat

MAPK:

Mitogen-activated kinase

METH:

Methamphetamine

MND:

Mild neurocognitive disorder

Nef:

Negative regulatory factor

NMDAR:

N-methyl-D-aspartate receptor

POL:

DNA polymerase

ProBDNF:

Pro-brain-derived neurotrophic factor

PPI:

Protein–protein interaction

P2X:

Purinergic receptor 2X

P75NTR:

Neurotrophin receptor P75

ROS:

Reactive oxygen species

STRING:

Search tool for the retrieval of interacting genes

Tat:

Trans-activating regulatory protein

TUBB3:

Tubulin β-3

TrkA:

Tropomyosin-related kinase A

UNAIDS:

United Nations Program on HIV/AIDS

Vpr:

Viral protein R

WHO:

Word Health Organization

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Acknowledgements

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Funding

This work was supported by the National Natural Science Foundation of China [NSFC8187108], the Key Research and Development Program of Hunan Province [2018SK2090] and the Natural Science Foundation of Hunan—Youth Foundation Project [2020JJ5701].

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Authors

Contributions

AS conceived the idea and drafted the manuscript. ZG and PAK reviewed articles, provided an extended insight on molecular immunology and neuroscience along with writing and critically revision of the entire manuscript. PAK provided bioinformatics insights and simulation. PP, DFHM, AL, RZ, ZH, LL, MZ, LS, SL, ML, DeC, and DaC revised the final manuscript. HJ and HY contributed to the designing, implementation and finalization of the manuscript for submission. All authors have read and approved the final manuscript.

Corresponding authors

Correspondence to Haiyang Yu or Jufang Huang.

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The authors declare that there is no competing interest in the publication of this review.

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Saro, A., Gao, Z., Kambey, P.A. et al. HIV-Proteins-Associated CNS Neurotoxicity, Their Mediators, and Alternative Treatments. Cell Mol Neurobiol 42, 2553–2569 (2022). https://doi.org/10.1007/s10571-021-01151-x

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  • DOI: https://doi.org/10.1007/s10571-021-01151-x

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