Journal
JOURNAL OF NEUROIMMUNOLOGY
Volume 211, Issue 1-2, Pages 66-72Publisher
ELSEVIER
DOI: 10.1016/j.jneuroim.2009.03.015
Keywords
CPMV; Blood brain barrier; Nanoparticles; Microglial cells; Central nervous system; Targeting
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Targeted treatment of inflammatory diseases of the central nervous system (CNS) remains problematic due to the complex pathogenesis of these disorders and difficulty in drug delivery. The plant virus, cowpea mosaic virus (CPMV), has recently been explored as a nanoparticle delivery system for therapeutics targeting a number of diseases including cancer and neurodegeneration. To understand the biodistribution of CPMV in the CNS, we examined CPMV uptake during infection of mice with neurotropic mouse hepatitis virus (MHV). CPMV localized mainly to the CNS endothelium in areas that contained an intact blood brain barrier. However, in inflammatory lesions containing macrophage/microglial cell infiltration and IgG, CPMV could be detected in the brain parenchyma. Furthermore, CPMV showed rapid internalization in an in vitro model of the BBB. These results suggest that CPMV particles could be used as a vehicle to deliver therapeutics to the damaged CNS during neurodegenerative and infectious diseases of the CNS. (C) 2009 Elsevier B.V. All rights reserved.
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