ArticleJournal of neurochemistry2017
The viral protein gp120 decreases the acetylation of neuronal tubulin: potential mechanism of neurotoxicity.
Article in Journal of neurochemistry, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed, 28 citations in OpenAlex.
- Epigenetic mechanisms of HIV and opioid-induced neuropathology: Potential therapies and interventions.Molecular therapy : the journal of the American Society of Gene Therapy · 2025Review
- HIV-1 envelope protein gp120 modulation of glutamate effects on cortical neuronal synapses: implications for HIV-1-associated neuropathogenesis.International journal of physiology, pathophysiology and pharmacology · 2023Article
- Recent Advances in the Molecular and Cellular Mechanisms of gp120-Mediated Neurotoxicity.Cells · 2022Review
- Role of Selective Histone Deacetylase 6 Inhibitor ACY-1215 in Cancer and Other Human Diseases.Frontiers in pharmacology · 2022Review
- Extracellular Vesicles and HIV-Associated Neurocognitive Disorders: Implications in Neuropathogenesis and Disease Diagnosis.Neurotoxicity research · 2021Review
- Review
- P300-mediated NEDD4 acetylation drives ebolavirus VP40 egress by enhancing NEDD4 ligase activity.PLoS pathogens · 2021Article
- Article
- HDAC6 in Diseases of Cognition and of Neurons.Cells · 2020Review
- Up-regulation of the p75 neurotrophin receptor is an essential mechanism for HIV-gp120 mediated synaptic loss in the striatum.Brain, behavior, and immunity · 2020Article
- Osteopontin and Integrin Mediated Modulation of Post-Synapses in HIV Envelope Glycoprotein Exposed Hippocampal Neurons.Brain sciences · 2020Article
- HIV influences microtubule associated protein-2: potential marker of HIV-associated neurocognitive disorders.AIDS (London, England) · 2020Article
- Article
- A Neuron-Specific Antiviral Mechanism Modulates the Persistent Infection of Rice Rhabdoviruses in Leafhopper Vectors.Frontiers in microbiology · 2020Article
- Age-Related Decrease in Tyrosine Hydroxylase Immunoreactivity in the Substantia Nigra and Region-Specific Changes in Microglia Morphology in HIV-1 Tg Rats.Neurotoxicity research · 2019Article
- Histone deacetylase 6 inhibition rescues axonal transport impairments and prevents the neurotoxicity of HIV-1 envelope protein gp120.Cell death & disease · 2019Article
- Lysine-specific post-translational modifications of proteins in the life cycle of viruses.Cell cycle (Georgetown, Tex.) · 2019Review
- HIV-associated neurodegeneration: exploitation of the neuronal cytoskeleton.Journal of neurovirology · 2019Review
- Rice Yellow Stunt Nucleorhabdovirus Matrix Protein Mediates Viral Axonal Transport in the Central Nervous System of Its Insect Vector.Frontiers in microbiology · 2019Article
- Reversal of Cognitive Impairment in gp120 Transgenic Mice by the Removal of the p75 Neurotrophin Receptor.Frontiers in cellular neuroscience · 2019Article
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
Abstract
The human immunodeficiency virus (HIV) envelope protein gp120 promotes axonal damage and neurite pruning, similar to that observed in HIV-positive subjects with neurocognitive disorders. Thus, gp120 has been used to examine molecular and cellular pathways underlying HIV-mediated neuronal dysfunction. Gp120 binds to tubulin beta III, a component of neuronal microtubules. Microtubule function, which modulates the homeostasis of neurons, is regulated by polymerization and post-translational modifications. Based on these considerations, we tested the hypothesis that gp120 induces dynamic instability of neuronal microtubules. We first observed that gp120 prevents the normal polymerization of tubulin in vitro. We then tested whether gp120 alters the post-translational modifications in tubulin by examining the ability of gp120 to change the levels of acetylated tubulin in primary rat neuronal cultures. Gp120 elicited a time-dependent decrease in tubulin acetylation that was reversed by Helix-A peptide, a compound that competitively displaces the binding of gp120 to neuronal microtubules. To determine whether post-translational modifications in tubulin also occur in vivo, we measured acetylated tubulin in the cerebral cortex of HIV transgenic rats (HIV-tg). We observed a decrease in tubulin acetylation in 5- and 9-month-old HIV-tg rats when compared to age-matched wild type. Neither changes in microglia morphology nor alterations in mRNA levels for interleukin-1β and tumor necrosis factor α were detected in 5-month-old animals. Our findings propose neuronal microtubule instability as a novel mechanism of HIV neurotoxicity, without evidence of enhanced inflammation.
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