Synthetic nanoparticles functionalized with biomimetic leukocyte membranes possess cell-like functions.
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
The therapeutic efficacy of systemic drug-delivery vehicles depends on their ability to evade the immune system, cross the biological barriers of the body and localize at target tissues. White blood cells of the immune system - known as leukocytes - possess all of these properties and exert their targeting ability through cellular membrane interactions. Here, we show that nanoporous silicon particles can successfully perform all these actions when they are coated with cellular membranes purified from leukocytes. These hybrid particles, called leukolike vectors, can avoid being cleared by the immune system. Furthermore, they can communicate with endothelial cells through receptor-ligand interactions, and transport and release a payload across an inflamed reconstructed endothelium. Moreover, leukolike vectors retained their functions when injected in vivo, showing enhanced circulation time and improved accumulation in a tumour. © 2013 Macmillan Publishers Limited. All rights reserved.
Date Issued
2013-01-01
Start Page
61
End Page
68
Journal / Book Title
Nat Nanotechnol
Volume
8
Issue
1
Copyright Statement
Copyright © 2012, Rights Managed by Nature Publishing Group
Identifier
http://www.ncbi.nlm.nih.gov/pubmed/23241654
nnano.2012.212
Coverage Spatial
England