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Uptake of poly(2-hydroxypropylmethacrylamide)-coated gold nanoparticles in microvascular endothelial cells and transport across the blood–brain barrier
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Freese, Christian, Unger, Ronald E., Deller, Robert C., Gibson, Matthew I., Brochhausen, Christoph, Klok, Harm-Anton and Kirkpatrick, C. James (2013) Uptake of poly(2-hydroxypropylmethacrylamide)-coated gold nanoparticles in microvascular endothelial cells and transport across the blood–brain barrier. Biomaterials Science, Volume 1 (Number 8). pp. 824-833. doi:10.1039/c3bm60050e ISSN 2047-4830.
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Official URL: http://dx.doi.org/10.1039/C3BM60050E
Abstract
The facile and modular functionalization of gold nanoparticles makes them versatile tools in nanomedicine, for instance, photothermal therapy, contrast agents or as model nanoparticles to probe drug-delivery mechanisms. Since endothelial cells from various locations in the body exhibit unique phenotypes we quantitatively examined the amount of different sized poly(2-hydroxypropylmethacrylamide)-coated gold nanoparticles internalized into primary human dermal endothelial cells or human brain endothelial cells (hCMEC/D3) by inductively coupled plasma atomic emission spectroscopy (ICP-AES) and visualized the nanoparticles using light and electron microscopy. Poly(2-hydroxypropylmethacrylamide)-coated gold nanoparticles exhibited high uptake into brain endothelial cells and were used to examine transport mechanisms across the blood–brain barrier using a well-established in vitro model of the blood–brain barrier. Our results demonstrate that 35 nm-sized gold nanoparticles were internalized best into human brain endothelial cells by a flotillin-dependent endocytotic pathway. The uptake into the cells is not correlated with transport across the blood–brain barrier. We demonstrated that the surface modification of gold nanoparticles impacts the internalization process in different cells. In addition, to evaluating toxicity and uptake potential of nanoparticles into cells, the transport properties across cell barriers are important criteria to classify nanoparticle properties regarding targeted delivery of drugs.
Item Type: | Journal Article | ||||||||
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Subjects: | Q Science > QP Physiology R Medicine > R Medicine (General) T Technology > TP Chemical technology |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||||||
Library of Congress Subject Headings (LCSH): | Nanomedicine, Cells -- Effect of drugs on, Nanostructured materials -- Optical properties, Blood-brain barrier | ||||||||
Journal or Publication Title: | Biomaterials Science | ||||||||
Publisher: | R S C Publications | ||||||||
ISSN: | 2047-4830 | ||||||||
Official Date: | 2 May 2013 | ||||||||
Dates: |
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Volume: | Volume 1 | ||||||||
Number: | Number 8 | ||||||||
Page Range: | pp. 824-833 | ||||||||
DOI: | 10.1039/c3bm60050e | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||
Date of first compliant deposit: | 27 December 2015 | ||||||||
Date of first compliant Open Access: | 27 December 2015 | ||||||||
Funder: | Sixth Framework Programme (European Commission) (FP6), European Regional Development Fund (ERDF), Higher Education Funding Council for England (HEFCE) | ||||||||
Grant number: | NMP4-CT-2006-026723 (FP6) |
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