Fentanyl dysregulates neuroinflammation and disrupts blood-brain barrier integrity in HIV-1 Tat transgenic mice

被引:4
|
作者
Rademeyer, Kara M. [1 ]
R. Nass, Sara [2 ]
Jones, Austin M. [1 ]
Ohene-Nyako, Michael [2 ]
Hauser, Kurt F. [2 ]
McRae, MaryPeace [3 ]
机构
[1] Virginia Commonwealth Univ, Dept Pharmacotherapy & Outcomes Sci, Richmond, VA 23298 USA
[2] Virginia Commonwealth Univ, Sch Med, Dept Pharmacol & Toxicol, Richmond, VA USA
[3] Univ Virginia, Sch Med, Dept Neurosci, Charlottesville, VA 22908 USA
关键词
Fentanyl; neuroHIV; Inflammation; Opioid abuse; Blood-brain barrier; Chemokines; HUMAN-IMMUNODEFICIENCY-VIRUS; JUNCTION PROTEIN EXPRESSION; NF-KAPPA-B; CENTRAL-NERVOUS-SYSTEM; INJECTING DRUG-USE; NEUROCOGNITIVE DISORDERS; CHEMOKINE PRODUCTION; TIGHT JUNCTIONS; P-GLYCOPROTEIN; T-CELLS;
D O I
10.1007/s13365-023-01186-4
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Opioid overdose deaths have dramatically increased by 781% from 1999 to 2021. In the setting of HIV, opioid drug abuse exacerbates neurotoxic effects of HIV in the brain, as opioids enhance viral replication, promote neuronal dysfunction and injury, and dysregulate an already compromised inflammatory response. Despite the rise in fentanyl abuse and the close association between opioid abuse and HIV infection, the interactive comorbidity between fentanyl abuse and HIV has yet to be examined in vivo. The HIV-1 Tat-transgenic mouse model was used to understand the interactive effects between fentanyl and HIV. Tat is an essential protein produced during HIV that drives the transcription of new virions and exerts neurotoxic effects within the brain. The Tat-transgenic mouse model uses a glial fibrillary acidic protein (GFAP)-driven tetracycline promoter which limits Tat production to the brain and this model is well used for examining mechanisms related to neuroHIV. After 7 days of fentanyl exposure, brains were harvested. Tight junction proteins, the vascular cell adhesion molecule, and platelet-derived growth factor receptor-beta were measured to examine the integrity of the blood brain barrier. The immune response was assessed using a mouse-specific multiplex chemokine assay. For the first time in vivo, we demonstrate that fentanyl by itself can severely disrupt the blood-brain barrier and dysregulate the immune response. In addition, we reveal associations between inflammatory markers and tight junction proteins at the blood-brain barrier.
引用
收藏
页码:1 / 21
页数:21
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