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Published in: Journal of Clinical Immunology 5/2008

01-09-2008

Tight Junction Regulation by Morphine and HIV-1 Tat Modulates Blood–Brain Barrier Permeability

Authors: Supriya D. Mahajan, Ravikumar Aalinkeel, Donald E. Sykes, Jessica L. Reynolds, B. Bindukumar, Stanley F. Fernandez, Ramnik Chawda, Thomas C. Shanahan, Stanley A. Schwartz

Published in: Journal of Clinical Immunology | Issue 5/2008

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Abstract

Human immunodeficiency virus (HIV)-1 patients who abuse opiates are at a greater risk of developing neurological complications of AIDS. Alterations in blood–brain barrier (BBB) integrity are associated with cytoskeletal disorganization and disruption of tight junction (TJ) integrity. We hypothesize that opiates in combination with HIV-1 viral proteins can modulate TJ expression in primary brain microvascular endothelial cells (BMVEC), thereby compromising BBB integrity and exacerbating HIV-1 neuropathogenesis. We investigated the effect of morphine and/or tat on the expression of TJ proteins ZO-1, JAM-2, Occludin and P-glycoprotein and the functional effects of TJ modulation in BMVEC. Morphine and/or tat, via the activation of pro-inflammatory cytokines, intracellular Ca2+ release, and activation of myosin light chain kinase, modulated TJ expression resulting in decreased transendothelial electric resistance and enhanced transendothelial migration across the BBB. These studies may lead to the development of novel anti-HIV-1 therapeutics that target specific TJ proteins, thus preventing TJ disruption in opiate using HIV-1 patients.
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Metadata
Title
Tight Junction Regulation by Morphine and HIV-1 Tat Modulates Blood–Brain Barrier Permeability
Authors
Supriya D. Mahajan
Ravikumar Aalinkeel
Donald E. Sykes
Jessica L. Reynolds
B. Bindukumar
Stanley F. Fernandez
Ramnik Chawda
Thomas C. Shanahan
Stanley A. Schwartz
Publication date
01-09-2008
Publisher
Springer US
Published in
Journal of Clinical Immunology / Issue 5/2008
Print ISSN: 0271-9142
Electronic ISSN: 1573-2592
DOI
https://doi.org/10.1007/s10875-008-9208-1

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