Ayer, Maxime; Schuster, Markus; Gruber, Isabelle; Blatti, Claudia; Kaba, Elisa; Enzmann, Gaby; Burri, Olivier; Guiet, Romain; Seitz, Arne; Engelhardt, Britta; Klok, Harm-Anton (2021). T Cell-Mediated Transport of Polymer Nanoparticles across the Blood-Brain Barrier. Advanced healthcare materials, 10(2), e2001375. Wiley 10.1002/adhm.202001375
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Delivery of therapeutics to the central nervous system (CNS) is challenging due to the presence of the blood-brain barrier (BBB). Amongst various approaches that have been explored to facilitate drug delivery to the CNS, the use of cells that have the intrinsic ability to cross the BBB is relatively unexplored, yet very attractive. This paper presents a first proof-of-concept that demonstrates the feasibility of activated effector/memory CD4+ helper T cells (CD4+ TEM cells) as carriers for the delivery of polymer nanoparticles across the BBB. This study shows that CD4+ TEM cells can be decorated with poly(ethylene glycol)-modified polystyrene nanoparticles using thiol-maleimide coupling chemistry, resulting in the immobilization of ≈105 nanoparticles per cell as determined by confocal microscopy. The ability of these cells to serve as carriers to transport nanoparticles across the BBB is established in vitro and in vivo. Using in vitro BBB models, CD4+ TEM cells are found to be able to transport nanoparticles across the BBB both under static conditions as well as under physiological flow. Finally, upon systemic administration, nanoparticle-modified T cells are shown to enter the brain parenchyma of mice, demonstrating the brain delivery potential of this T cell subset in allogeneic hosts.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
09 Interdisciplinary Units > Microscopy Imaging Center (MIC) 04 Faculty of Medicine > Pre-clinic Human Medicine > Theodor Kocher Institute |
UniBE Contributor: |
Gruber, Isabelle Manuela, Blatti, Claudia, Bouillet, Elisa Catherine, Enzmann, Gaby, Engelhardt, Britta |
Subjects: |
500 Science > 570 Life sciences; biology 600 Technology > 610 Medicine & health |
ISSN: |
2192-2659 |
Publisher: |
Wiley |
Language: |
English |
Submitter: |
Ursula Zingg-Zünd |
Date Deposited: |
25 Jan 2021 11:08 |
Last Modified: |
02 Mar 2023 23:34 |
Publisher DOI: |
10.1002/adhm.202001375 |
PubMed ID: |
33241667 |
Uncontrolled Keywords: |
blood-brain barriers cell-mediated deliveries cell-surface modifications nanomedicines nanoparticles |
BORIS DOI: |
10.48350/150897 |
URI: |
https://boris.unibe.ch/id/eprint/150897 |
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