GCN2 in Viral Defence and the Subversive Tactics Employed by Viruses

Gibbs, Victoria J.; Lin, Yu H.; Ghuge, Aditi A.; Anderson, Reuben A.; Schiemann, Anja H.; Conaglen, Layla; Sansom, Bianca J.M.; da Silva, Richard C.; Sattlegger, Evelyn

doi:10.1016/j.jmb.2024.168594

Journal of Molecular Biology

2024

DOI: 10.1016/j.jmb.2024.168594

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GCN2 in Viral Defence and the Subversive Tactics Employed by Viruses

Victoria J. Gibbs,

Yu H. Lin,

Aditi A. Ghuge

et al.

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2024

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Analysis of Sigma-1 Receptor Antagonist BD1047 Effect on Upregulating Proteins in HIV-1-Infected Macrophages Exposed to Cocaine Using Quantitative Proteomics

Vélez-López,

Carrasquillo-Carrión,

Cantres-Rosario

et al. 2024

Biomedicines

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HIV-1 infects monocyte-derived macrophages (MDM) that migrate into the brain and secrete virus and neurotoxic molecules, including cathepsin B (CATB), causing cognitive dysfunction. Cocaine potentiates CATB secretion and neurotoxicity in HIV-infected MDM. Pretreatment with BD1047, a sigma-1 receptor antagonist, before cocaine exposure reduces HIV-1, CATB secretion, and neuronal apoptosis. We aimed to elucidate the intracellular pathways modulated by BD1047 in HIV-infected MDM exposed to cocaine. We hypothesized that the Sig1R antagonist BD1047, prior to cocaine, significantly deregulates proteins and pathways involved in HIV-1 replication and CATB secretion that lead to neurotoxicity. MDM culture lysates from HIV-1-infected women treated with BD1047 before cocaine were compared with untreated controls using TMT quantitative proteomics, bioinformatics, Lima statistics, and pathway analyses. Results demonstrate that pretreatment with BD1047 before cocaine dysregulated eighty (80) proteins when compared with the infected cocaine group. We found fifteen (15) proteins related to HIV-1 infection, CATB, and mitochondrial function. Upregulated proteins were related to oxidative phosphorylation (SLC25A-31), mitochondria (ATP5PD), ion transport (VDAC2–3), endoplasmic reticulum transport (PHB, TMED10, CANX), and cytoskeleton remodeling (TUB1A-C, ANXA1). BD1047 treatment protects HIV-1-infected MDM exposed to cocaine by upregulating proteins that reduce mitochondrial damage, ER transport, and exocytosis associated with CATB-induced neurotoxicity.

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Analysis of Sigma-1 Receptor Antagonist BD1047 Effect on Upregulating Proteins in HIV-1-Infected Macrophages Exposed to Cocaine Using Quantitative Proteomics

Vélez-López,

Carrasquillo-Carrión,

Cantres-Rosario

et al. 2024

Biomedicines

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GCN2 in Viral Defence and the Subversive Tactics Employed by Viruses

Cited by 1 publication

References 172 publications

Analysis of Sigma-1 Receptor Antagonist BD1047 Effect on Upregulating Proteins in HIV-1-Infected Macrophages Exposed to Cocaine Using Quantitative Proteomics

Analysis of Sigma-1 Receptor Antagonist BD1047 Effect on Upregulating Proteins in HIV-1-Infected Macrophages Exposed to Cocaine Using Quantitative Proteomics

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