Abstract
Nearly every aspect of blood-brain barrier (BBB) function is involved in or affected by HIV-1. The disruption of the BBB tends to be minimal and is not likely the mechanism by which infected immune cells and virus enter the brain. Instead, immune cells, virus and viral proteins likely activate brain endothelial cells and enable their own passage across the BBB by way of highly regulated processes such as diapedesis and adsorptive endocytosis. Viral proteins and cytokines can enter the CNS from the blood and provide a mechanism by which HIV-1 can affect CNS function independent of viral transport. Brain endothelial cells can also secrete neuroimmunoactive substances when stimulated by HIV-1, gp120, and Tat. Efflux systems such as p-glycoprotein transport anti-virals in the brain-to-blood direction, thus hampering effective accumulation of drug by the CNS. Overall, the BBB plays a major role in establishing and maintaining virus within the CNS and neuroAIDS.
Keywords: Blood-brain barrier, transporter, virus, HIV-1, AIDS, cytokine
Current HIV Research
Title: The Blood-Brain Barrier in NeuroAIDS
Volume: 4 Issue: 3
Author(s): Wiliam A. Banks, Nuran Ercal and Tulin Otamis Price
Affiliation:
Keywords: Blood-brain barrier, transporter, virus, HIV-1, AIDS, cytokine
Abstract: Nearly every aspect of blood-brain barrier (BBB) function is involved in or affected by HIV-1. The disruption of the BBB tends to be minimal and is not likely the mechanism by which infected immune cells and virus enter the brain. Instead, immune cells, virus and viral proteins likely activate brain endothelial cells and enable their own passage across the BBB by way of highly regulated processes such as diapedesis and adsorptive endocytosis. Viral proteins and cytokines can enter the CNS from the blood and provide a mechanism by which HIV-1 can affect CNS function independent of viral transport. Brain endothelial cells can also secrete neuroimmunoactive substances when stimulated by HIV-1, gp120, and Tat. Efflux systems such as p-glycoprotein transport anti-virals in the brain-to-blood direction, thus hampering effective accumulation of drug by the CNS. Overall, the BBB plays a major role in establishing and maintaining virus within the CNS and neuroAIDS.
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Cite this article as:
Banks A. Wiliam, Ercal Nuran and Otamis Price Tulin, The Blood-Brain Barrier in NeuroAIDS, Current HIV Research 2006; 4 (3) . https://dx.doi.org/10.2174/157016206777709447
DOI https://dx.doi.org/10.2174/157016206777709447 |
Print ISSN 1570-162X |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4251 |
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