Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/114096
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Murine and non-human primate dendritic cell targeting nanoparticles for in vivo generation of regulatory T-Cells |
Author: | Stead, S. Kireta, S. McInnes, S. Kette, F. Sivanathan, K. Kim, J. Cueto-Diaz, E. Cunin, F. Durand, J. Drogemuller, C. Carroll, R. Voelcker, N. Coates, P. |
Citation: | ACS Nano, 2018; 12(7):6637-6647 |
Publisher: | American Chemical Society |
Issue Date: | 2018 |
ISSN: | 1936-0851 1936-086X |
Statement of Responsibility: | Sebastian O. Stead, Svjetlana Kireta, Steve J. P. McInnes, Francis D. Kette, Kisha N. Sivanathan, Juewan Kim, Eduardo J. Cueto-Diaz, Frederique Cunin, Jean-Olivier Durand, Christopher J. Drogemuller, Robert P. Carroll, Nicolas H. Voelcker and Patrick T. Coates |
Abstract: | Porous silicon nanoparticles (pSiNP), modified to target dendritic cells (DC), provide an alternate strategy for the delivery of immunosuppressive drugs. Here, we aimed to develop a DC-targeting pSiNP displaying c-type lectin, dendritic cell-specific intercellular adhesion molecule-3-grabbing non-integrin (DC-SIGN), and CD11c monoclonal antibodies. The in vivo tracking of these fluorescent DC-targeting nanoparticles was assessed in both C57BL/6 mice and common marmosets (Callithrix jacchus) by intravenous injection (20 mg/kg). Rapamycin and ovalbumin (OVA)323–339 peptide loaded pSiNP were employed to evaluate their ability to generate murine CD4+CD25+FoxP3+ regulatory T-cells in vivo within OVA sensitized mice. In vivo, pSiNP migrated to the liver, kidneys, lungs, and spleen in both mice and marmosets. Flow cytometry confirmed pSiNP uptake by splenic and peripheral blood DC when functionalized with targeting antibodies. C57BL/6 OVA sensitized mice injected with CD11c-pSiNP loaded with rapamycin + OVA323–339 produced a 5-fold higher number of splenic regulatory T-cells compared to control mice, at 40 days post-pSiNP injection. These results demonstrate the importance of the immobilized targeting antibodies to enhance cellular uptake and enable the in vivo generation of splenic regulatory T-cells. |
Keywords: | DC-SIGN; nanomedicine; nanoparticles; porous silicon; rapamycin; regulatory T-cells; tolerance |
Rights: | © 2018 American Chemical Society |
DOI: | 10.1021/acsnano.8b01625 |
Grant ID: | NHMRC |
Published version: | http://dx.doi.org/10.1021/acsnano.8b01625 |
Appears in Collections: | Aurora harvest 8 Medicine publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.