Abstract
Human immunodeficiency virus (HIV) does not infect neurons, yet dendritic simplifications and loss of synapses are seen in different brain areas of people living with HIV. Nevertheless, the underlying causes of the pathological alterations observed in these individuals are poorly comprehended. HIV interactions with cells of the central nervous system occur through viral proteins, including gp120 and Tat. These proteins exhibit a potent neurotoxic effect on synapses. This chapter will briefly present new emerging concepts that link the ability of viral proteins to promote the degeneration of synapses by damaging the neuronal cytoskeleton.
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Abbreviations
- AIDS:
-
Acquired immunodeficiency syndrome
- ANI:
-
Asymptomatic neurocognitive impairment
- BBB:
-
Blood-brain barrier
- BDNF:
-
Brain-derived neurotrophic factor
- cART:
-
Combination antiretroviral therapy
- CNS:
-
Central nervous system
- CSF:
-
Cerebrospinal fluid
- Gag:
-
Group-specific antigen
- HAND:
-
HIV-associated neurocognitive disorder
- HIV:
-
Human immunodeficiency virus-1
- LTR:
-
Long terminal repeat
- MAP 2:
-
MT-associated protein 2
- MND:
-
Mild neurocognitive disorder
- MTs:
-
Microtubules
- Nef:
-
Negative regulating factor
- NFs:
-
Neurofilaments
- PLH:
-
People living with HIV
- PTMs:
-
Posttranslational modifications
- Rev.:
-
RNA splicing-regulator
- Tat:
-
Transactivator of transcription
- TUBB3:
-
Class III beta tubulin
- Vif:
-
Viral infectivity factor
- Vpr:
-
Viral protein R
- Vpu:
-
Viral protein U
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Acknowledgments
Support for this work was provided by HHS grants R01 NS079172 and R21 NS104000 to IM.
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Agbey, C., Avdoshina, V., Mocchetti, I. (2022). Neuronal Cytoskeleton and HIV-Mediated Neurodegeneration. In: Kostrzewa, R.M. (eds) Handbook of Neurotoxicity. Springer, Cham. https://doi.org/10.1007/978-3-031-15080-7_230
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DOI: https://doi.org/10.1007/978-3-031-15080-7_230
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