ArticleBiological psychiatry. Cognitive neuroscience and neuroimaging2017
Conditional Human Immunodeficiency Virus Transactivator of Transcription Protein Expression Induces Depression-like Effects and Oxidative Stress.
Article in Biological psychiatry. Cognitive neuroscience and neuroimaging, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.
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Who cites it
18 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.
- Mitochondrial dysfunction, oxidative stress, neuroinflammation, and metabolic alterations in the progression of Alzheimer's disease: A meta-analysis of in vivo magnetic resonance spectroscopy studies.Ageing research reviews · 2021Pooled it
- Xenon gas as a potential treatment for opioid use disorder, alcohol use disorder, and related disorders.Medical gas research · 2025Review
- HIV-Tat and vascular endothelium: implications in the HIV associated brain, heart, and lung complications.Frontiers in immunology · 2025Review
- Impact of HIV-1 tat protein on methamphetamine-induced inhibition of vesicular monoamine transporter2-mediated dopamine transport and methamphetamine conditioned place preference in HIV-1 tat transgenic mice.European journal of pharmacology · 2024Article
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- Expression of Human Immunodeficiency Virus Transactivator of Transcription (HIV-TatJournal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2022Article
- HIV Tat and cocaine interactively alter genome-wide DNA methylation and gene expression and exacerbate learning and memory impairments.Cell reports · 2022Article
- Clathrin-nanoparticles deliver BDNF to hippocampus and enhance neurogenesis, synaptogenesis and cognition in HIV/neuroAIDS mouse model.Communications biology · 2022Article
- Allopregnanolone and neuroHIV: Potential benefits of neuroendocrine modulation in the era of antiretroviral therapy.Journal of neuroendocrinology · 2022Review
- Neurodegeneration Within the Amygdala Is Differentially Induced by Opioid and HIV-1 Tat Exposure.Frontiers in neuroscience · 2022Article
- In vivo proton magnetic resonance spectroscopy detection of metabolite abnormalities in aged Tat-transgenic mouse brain.GeroScience · 2021Article
- HIV-1 Tat and morphine decrease murine inter-male social interactions and associated oxytocin levels in the prefrontal cortex, amygdala, and hypothalamic paraventricular nucleus.Hormones and behavior · 2021Article
- HIV-1 Tat promotes age-related cognitive, anxiety-like, and antinociceptive impairments in female mice that are moderated by aging and endocrine status.GeroScience · 2021Article
- Combined HIV-1 Tat and oxycodone activate the hypothalamic-pituitary-adrenal and -gonadal axes and promote psychomotor, affective, and cognitive dysfunction in female mice.Hormones and behavior · 2020Article
- Simian immunodeficiency virus transiently increases brain temperature in rhesus monkeys: detection with magnetic resonance spectroscopy thermometry.Magnetic resonance in medicine · 2019Article
- Disruption of Timing: NeuroHIV Progression in the Post-cART Era.Scientific reports · 2019Article
- Human Immunodeficiency Virus Transactivator of Transcription-Induced Increases in Depression-like Effects Are Linked to Oxidative Stress.Biological psychiatry. Cognitive neuroscience and neuroimaging · 2017Article
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Authors and funding
13 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundThe prevalence of major depression in those with HIV/AIDS is substantially higher than in the general population. Mechanisms underlying this comorbidity are poorly understood. HIV-transactivator of transcription (Tat) protein, produced and excreted by HIV, could be involved. We determined whether conditional Tat protein expression in mice is sufficient to induce depression-like behaviors and oxidative stress. Further, as oxidative stress is associated with depression, we determined whether decreasing or increasing oxidative stress by administering methylsulfonylmethane (MSM) or diethylmaleate (DEM), respectively, altered depression-like behavior.
methodsGT-tg bigenic mice received intraperitoneal saline or doxycycline (Dox, 25-100 mg/kg/day) to induce Tat expression. G-tg mice, which do not express Tat protein, also received Dox. Depression-like behavior was assessed with the tail suspension test (TST) and the two-bottle saccharin/water consumption task. Reactive oxygen/nitrogen species (ROS/RNS) were assessed ex vivo. Medial frontal cortex (MFC) oxidative stress and temperature were measured in vivo with 9.4-Tesla proton magnetic resonance spectroscopy (MRS).
resultsTat expression increased TST immobility time in an exposure-dependent manner and reduced saccharin consumption. MSM decreased immobility time while DEM increased it in saline-treated GT-tg mice. Tat and MSM behavioral effects persisted for 28 days. Tat and DEM increased while MSM decreased ROS/RNS levels. Tat expression increased MFC glutathione levels and temperature.
conclusionsTat expression induced rapid and enduring depression-like behaviors and oxidative stress. Increasing/decreasing oxidative stress increased/decreased, respectively, depression-like behavior. Thus, Tat produced by HIV may contribute to the high depression prevalence among those with HIV. Further, mitigation of oxidative stress could reduce depression severity.
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