Journal
JOURNAL OF CONTROLLED RELEASE
Volume 117, Issue 1, Pages 51-58Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jconrel.2006.10.015
Keywords
apolipoprotein A-I; chemotherapy; glioblastoma; nanoparticles; poly(butyl cyanoacrylate); poloxamer 188; polysorbate 80; rats
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Poly(butyl cyanoacrylate) nanoparticles coated with poloxamer 188 (Pluronic (R) F68) and also, as shown previously, polysorbate 80 (Tween (R) 80) considerably enhance the anti-tumour effect of doxorubicin against an intracranial glioblastoma in rats. The investigation of plasma protein adsorption on the surface of the drug-loaded nanoparticles by two-dimensional electrophoresis (2-D PAGE) revealed that both surfactants, besides other plasma components, induced a considerable adsorption of apolipoprotein A-I (ApoA-I). It is hypothesized that delivery of doxorubicin to the brain by means of nanoparticles may be augmented by the interaction of apolipoprotein A-I that is anchored on the surface of the nanoparticles with the scavenger receptor class B type I (SR-BI) located at the blood-brain barrier. This is the first study that shows a correlation between the adsorption of apolipoprotein A-I on the nanoparticle surface and the delivery of the drug across the blood-brain barrier. (c) 2006 Elsevier B.V. All rights reserved.
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