Cited by 438Barrier Structure and Function StudiesNanoparticle-Based Drug DeliveryDrug Transport and Resistance Mechanisms

Albumin nanoparticles targeted with Apo E enter the CNS by transcytosis and are delivered to neurones

Zensi, Anja, Begley, David, Pontikis, Charles, Legros, Celine, Mihoreanu, Larisa, Wagner, Sylvia, Büchel, Claudia, von Briesen, Hagen +1 more·2009·Journal of Controlled Release

Abstract

The blood-brain barrier (BBB) represents a considerable obstacle to brain entry of the majority of drugs and thus severely restricts the therapy of many serious CNS diseases including brain tumours, brain HIV, Alzheimer and other neurodegenerative diseases. The use of nanoparticles coated with polysorbate 80 or with attached apolipoprotein E has enabled the delivery of drugs across the BBB. However, the mechanism of this enhanced transport is still not fully understood. In this present study, human serum albumin nanoparticles, with covalently bound apolipoprotein E (Apo E) as a targetor as well as without apolipoprotein E, were manufactured and injected intravenously into SV 129 mice. The animals were sacrificed after 15 and 30 min, and their brains were examined by transmission electron microscopy. Only the nanoparticles with covalently bound apolipoprotein E were detected in brain capillary endothelial cells and neurones, whereas no uptake into the brain was detectable with nanoparticles without apolipoprotein E. We have also demonstrated uptake of the albumin/ApoE nanoparticles into mouse endothelial (b.End3) cells in vitro and their intracellular localisation. These findings indicate that nanoparticles with covalently bound apolipoprotein E are taken up into the cerebral endothelium by an endocytic mechanism followed by transcytosis into brain parenchyma.

Integrity signals

Registry

Crossref · 10.1016/j.jconrel.2009.03.002

Cites

34 of 34 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Brain-targeting plasma proteins, such as transferrin and ApoE, have been used as targeting ligand for brain-targeted drug delivery.

    “Brain-targeting plasma proteins, such as transferrin and ApoE, have been used as targeting ligand for brain-targeted drug delivery52–55.”
  • Ligand-receptor interaction is possible only if the two components are in close proximity (< 0.5 nm).

    “Ligand-receptor interaction is possible only if the two components are in close proximity (< 0.5 nm).228”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Zensi, A., Begley, D., Pontikis, C., Legros, C., Mihoreanu, L., Wagner, S., Büchel, C., von Briesen, H., & Kreuter, J.
Affiliations
  • Goethe University Frankfurt (DE)
  • King's College London (GB)
  • Fraunhofer Institute for Biomedical Engineering (DE)
Corresponding author
Kreuter, Jörg
Venue
Journal of Controlled Release
Publisher
Elsevier BV
Published
2009-07
Volume
137
Issue
1
Pages
78-86
ISSN
0168-3659 (ISSN-L)
OpenAlex
W2090866080
Cited by
438
References
34
Citations by year
2026: 8 · 2025: 14 · 2024: 26 · 2023: 17 · 2022: 24 · 2021: 16 · 2020: 33 · 2019: 28 · 2018: 22 · 2017: 28 · 2016: 32 · 2015: 30 · 2014: 32 · 2013: 31 · 2012: 32
FWCI
20.66
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Controlled Release (publishedVersion)
  • PubMed (publishedVersion)
  • Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft) (submittedVersion)
  • Research Portal (King's College London) (submittedVersion)
  • Fraunhofer-Publica (Fraunhofer-Gesellschaft) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Health Sciences › Medicine › Oncology › Drug Transport and Resistance Mechanisms
Keywords
human serum albumin nanoparticles, apolipoprotein E, blood-brain barrier, transcytosis, brain drug delivery, endocytosis, brain microvascular endothelial cells, nanoparticle targeting, intracellular localisation
MeSH terms
Animals, Apolipoproteins E, Biological Transport, Blood-Brain Barrier, Cell Survival, Cells, Cultured, Cerebral Cortex, Endothelium, Vascular, Female, Formazans, Hippocampus, Humans, Indicators and Reagents, Mice, Inbred Strains, Neurons, Particle Size, Serum Albumin, Mice, Nanoparticles

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review