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Macrophages with cellular backpacks for targeted drug delivery to the brain
Name
nihms905456.pdf
Description
Accepted version
Size
2.01 MB
Format
Adobe PDF
Checksum (MD5)
56f6921c788424ca0ca6411afb26a52d
Author(s)
Klyachko, Natalia L
Polak, Roberta
Haney, Matthew J
Zhao, Yuling
Gomes Neto, Reginaldo J
Hill, Michael C
Kabanov, Alexander V
Cohen, Robert E
Rubner, Michael F
Batrakova, Elena V
Date Issued
2017
Journal
Biomaterials
Publisher
Elsevier BV
Version
Author's final manuscript
Abstract
© 2017 Most potent therapeutics are unable to cross the blood-brain barrier following systemic administration, which necessitates the development of unconventional, clinically applicable drug delivery systems. With the given challenges, biologically active vehicles are crucial to accomplishing this task. We now report a new method for drug delivery that utilizes living cells as vehicles for drug carriage across the blood brain barrier. Cellular backpacks, 7–10 μm diameter polymer patches of a few hundred nanometers in thickness, are a potentially interesting approach, because they can act as drug depots that travel with the cell-carrier, without being phagocytized. Backpacks loaded with a potent antioxidant, catalase, were attached to autologous macrophages and systemically administered into mice with brain inflammation. Using inflammatory response cells enabled targeted drug transport to the inflamed brain. Furthermore, catalase-loaded backpacks demonstrated potent therapeutic effects deactivating free radicals released by activated microglia in vitro. This approach for drug carriage and release can accelerate the development of new drug formulations for all the neurodegenerative disorders.
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
10.1016/J.BIOMATERIALS.2017.06.017
