Journal
BIOMACROMOLECULES
Volume 13, Issue 4, Pages 1067-1073Publisher
AMER CHEMICAL SOC
DOI: 10.1021/bm201790s
Keywords
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Funding
- BBSRC, U.K [BB/F011865/1]
- TC2N EU Interreg and Brain Tumour Research
- IBBS
- Biotechnology and Biological Sciences Research Council [BB/F011865/1] Funding Source: researchfish
- BBSRC [BB/F011865/1] Funding Source: UKRI
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A series of O-substituted alkylglyceryl chitosans with systematically varied alkyl chain length and degree of grafting has been employed for the formulation of aqueous nanoparticulate systems, which were in turn investigated for their effects on a modeled blood-brain-barrier system of mouse-brain endothelial cells. Barrier function measurements employing electric cell-substrate impedance sensing and analyses of tight junction-specific protein profiles have indicated that the alkylglyceryl-modified chitosan nanoparticles impact upon the integrity of the model blood-brain barrier, whereas confocal microscopy experiments have demonstrated the efficient cellular uptake and the perinuclear localization of these nanoparticles. The application of nanoparticles to the model blood-brain barrier effected an increase in its permeability, as demonstrated by following the transport of the tracer molecule fluorescein isothiocyanate.
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