Cited by 557Barrier Structure and Function StudiesDrug Transport and Resistance MechanismsNanoparticle-Based Drug Delivery

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Involvement of the low‐density lipoprotein receptor‐related protein in the transcytosis of the brain delivery vector Angiopep‐2

Abstract

The blood–brain barrier (BBB) restricts the entry of proteins as well as potential drugs to cerebral tissues. We previously reported that a family of Kunitz domain‐derived peptides called Angiopeps can be used as a drug delivery system for the brain. Here, we further characterize the transcytosis ability of these peptides using an in vitro model of the BBB and in situ brain perfusion. These peptides, and in particular Angiopep‐2, exhibited higher transcytosis capacity and parenchymal accumulation than do transferrin, lactoferrin, and avidin. Angiopep‐2 transport and accumulation in brain endothelial cells were unaffected by the P‐glycoprotein inhibitor, cyclosporin A, indicating that this peptide is not a substrate for the efflux pump P‐glycoprotein. However, competition studies show that activated α 2 ‐macroglobulin, a specific ligand for the low‐density lipoprotein receptor‐related protein‐1 (LRP1) and Angiopep‐2 can share the same receptor. In addition, LRP1 was detected in glioblastomas and brain metastases from lung and skin cancers. Fluorescent microscopy also revealed that Alexa488‐Angiopep‐2 co‐localized with LRP1 in brain endothelial cell monolayers. Overall, these results suggest that Angiopep‐2 transport across the BBB is, in part, mediated by LRP1.

Overview

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Crossref · 10.1111/j.1471-4159.2008.05492.x

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  • Some exchangeable apolipoproteins (ApoA1 and ApoE) can cross the blood-brain barrier via receptor-mediated transcytosis.

    “Some of those exchangeable apolipoproteins (ApoA1 and ApoE) can cross the blood-brain barrier (BBB) via receptor-mediated transcytosis18–21”

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Metadata

Authors
Demeule, M., Currie, J., Bertrand, Y., Ché, C., Nguyen, T., Régina, A., Gabathuler, R., Castaigne, J., & Béliveau, R.
Affiliations
  • Angiochem (Canada) (CA)
  • Université du Québec à Montréal (CA)
Corresponding author
Gabathuler, Reinhard
Venue
Journal of Neurochemistry
Publisher
Wiley
Published
2008-08
Volume
106
Issue
4
Pages
1534-1544
ISSN
  • 0022-3042 (ISSN-L)
  • 1471-4159
OpenAlex
W1995195889
Cited by
557
References
2
Citations by year
2026: 28 · 2025: 27 · 2024: 35 · 2023: 40 · 2022: 46 · 2021: 46 · 2020: 50 · 2019: 25 · 2018: 41 · 2017: 30 · 2016: 32 · 2015: 26 · 2014: 29 · 2013: 24 · 2012: 28
FWCI
10.74
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neurochemistry (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Natural Sciences and Engineering Research Council of Canada
  • National Research Council Canada
Topics
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
  • Health Sciences › Medicine › Oncology › Drug Transport and Resistance Mechanisms
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
Keywords
Angiopep-2, LRP1, blood-brain barrier, transcytosis, brain drug delivery, alpha2-macroglobulin, P-glycoprotein, brain endothelial cells, glioblastoma, brain metastases, receptor-mediated transport
MeSH terms
Animals, Blood-Brain Barrier, Brain, Cattle, Cells, Cultured, Genetic Vectors, Humans, Oligopeptides, Peptide Fragments, Peptides, Cyclic, Somatostatin, Drug Delivery Systems, Protein Transport, Low Density Lipoprotein Receptor-Related Protein-1, Cell Line, Tumor, Rats

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