Cited by 42Barrier Structure and Function StudiesNanoparticle-Based Drug DeliveryRNA Interference and Gene Delivery

Claudin-1-Targeted Nanoparticles for Delivery to Aging-Induced Alterations in the Blood–Brain Barrier

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Bony, Badrul Alam, Tarudji, Aria W., Miller, Hunter A., Gowrikumar, Saiprasad, Roy, Sourav, Curtis, Evan T., Gee, Connor C., Vecchio, Alex +2 more·2021·ACS Nano

Abstract

Aging-induced alterations to the blood–brain barrier (BBB) are increasingly being seen as a primary event in chronic progressive neurological disorders that lead to cognitive decline. With the goal of increasing delivery into the brain in hopes of effectively treating these diseases, a large focus has been placed on developing BBB permeable materials. However, these strategies have suffered from a lack of specificity toward regions of disease progression. Here, we report on the development of a nanoparticle (C1C2-NP) that targets regions of increased claudin-1 expression that reduces BBB integrity. Using dynamic contrast enhanced magnetic resonance imaging, we find that C1C2-NP accumulation and retention is significantly increased in brains from 12 month-old mice as compared to nontargeted NPs and brains from 2 month-old mice. Furthermore, we find C1C2-NP accumulation in brain endothelial cells with high claudin-1 expression, suggesting target-specific binding of the NPs, which was validated through fluorescence imaging, in vitro testing, and biophysical analyses. Our results further suggest a role of claudin-1 in reducing BBB integrity during aging and show altered expression of claudin-1 can be actively targeted with NPs. These findings could help develop strategies for longitudinal monitoring of tight junction protein expression changes during aging as well as be used as a delivery strategy for site-specific delivery of therapeutics at these early stages of disease development.

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Authors
Bony, B. A., Tarudji, A. W., Miller, H. A., Gowrikumar, S., Roy, S., Curtis, E. T., Gee, C. C., Vecchio, A., Dhawan, P., & Kievit, F. M.
Affiliations
  • University of Nebraska–Lincoln (US)
  • University of Nebraska Medical Center (US)
  • VA Nebraska Western Iowa Health Care System (US)
Corresponding author
Kievit, Forrest M.
Venue
ACS Nano
Published
2021-11-08
Volume
15
Issue
11
Pages
18520-18531
ISSN
  • 1936-0851 (ISSN-L)
  • 1936-086X
OpenAlex
W3214241336
Cited by
42
References
83
Citations by year
2026: 8 · 2025: 17 · 2024: 6 · 2023: 8 · 2022: 3
FWCI
1.70
Type
journal article
Language
en
Open access
Locations
  • ACS Nano (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Center for Integrated Healthcare, U.S. Department of Veterans Affairs (BX002086)
  • National Institute of Neurological Disorders and Stroke (R01NS109488)
  • Division of Graduate Education (DGE-1610400)
Topics
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
Keywords
claudin-1, targeted nanoparticles, brain drug delivery, tight junction proteins, brain endothelial cells, nanoparticle accumulation, cognitive decline
MeSH terms
Aging, Animals, Blood-Brain Barrier, Tight Junctions, Endothelial Cells, Mice, Nanoparticles, Claudin-1

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