Cited by 198Barrier Structure and Function StudiesAlzheimer's disease research and treatmentsDrug Transport and Resistance Mechanisms

Lack of Widespread BBB Disruption in Alzheimer’s Disease Models: Focus on Therapeutic Antibodies

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Bien-Ly, Nga, Boswell, C. Andrew, Jeet, Surinder, Beach, Thomas G., Hoyte, Kwame, Luk, Wilman, Shihadeh, Vera, Ulufatu, Sheila +5 more·2015·Neuron

Abstract

The blood-brain barrier (BBB) limits brain uptake of therapeutic antibodies. It is believed that the BBB is disrupted in Alzheimer's disease (AD), potentially increasing drug permeability de facto. Here we compared active versus passive brain uptake of systemically dosed antibodies (anti-transferrin receptor [TfR] bispecific versus control antibody) in mouse models of AD. We first confirmed BBB disruption in a mouse model of multiple sclerosis as a positive control. Importantly, we found that BBB permeability was vastly spared in mouse models of AD, including PS2-APP, Tau transgenics, and APOE4 knockin mice. Brain levels of TfR in mouse models or in human cases of AD resembled controls, suggesting target engagement of TfR bispecific is not limited. Furthermore, infarcts from human AD brain showed similar occurrences compared to age-matched controls. These results question the widely held view that the BBB is largely disrupted in AD, raising concern about assumptions of drug permeability in disease.

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Crossref · 10.1016/j.neuron.2015.09.036

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  • Some studies have shown that ApoE4 disrupts BBB integrity in non-APP mice, but non-APP ApoE4 knock-in mice do not have any widespread BBB disruption.

    “Although some studies have shown that ApoE4 disrupts BBB integrity in non-APP mice, it was recently reported that non-APP ApoE4 knock-in mice do not have any widespread BBB disruption [27].”

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Research works printed but not linked: 1

  1. Beach, T.G., Adler, C.H., Sue, L.I., Serrano, G., Shill, H.A., Walker, D.G., Lue, L., Roher, A.E., Dugger, B.N., Maarouf, C., et al. (2015). Arizona Study of Aging and Neurodegenerative Disorders and Brain and Body Donation Program. Neuropathology 35 , 354-389. http://refhub.elsevier.com/S0896-6273(1500825-9/sref5)

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Authors
Bien-Ly, N., Boswell, C. A., Jeet, S., Beach, T. G., Hoyte, K., Luk, W., Shihadeh, V., Ulufatu, S., Foreman, O., Lu, Y., DeVoss, J., van der Brug, M., & Watts, R. J.
Affiliations
  • Genentech (US)
  • Banner Sun Health Research Institute (US)
Venue
Neuron
Publisher
Elsevier BV
Published
2015-10
Volume
88
Issue
2
Pages
289-297
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2158547909
Cited by
198
References
40
Citations by year
2026: 8 · 2025: 15 · 2024: 12 · 2023: 17 · 2022: 15 · 2021: 24 · 2020: 16 · 2019: 25 · 2018: 18 · 2017: 25 · 2016: 19 · 2015: 4
FWCI
11.74
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Oncology › Drug Transport and Resistance Mechanisms
Keywords
blood-brain barrier, Alzheimer's disease, therapeutic antibodies, transferrin receptor, bispecific antibodies, blood-brain barrier permeability, APP transgenic mice, tau transgenic mice, infarction, drug permeability
MeSH terms
Alzheimer Disease, Animals, Antibodies, Blood-Brain Barrier, Disease Models, Animal, Female, Humans, Male, Mice, Inbred C57BL, Mice, Transgenic, Recombinant Fusion Proteins, Mice, Knockout, Mice, Single-Chain Antibodies

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