Next Article in Journal
Hybrids of Nucleic Acids and Carbon Nanotubes for Nanobiotechnology
Next Article in Special Issue
Targeting of Apoptotic Cells Using Functionalized Fe2O3 Nanoparticles
Previous Article in Journal
DNA/Ag Nanoparticles as Antibacterial Agents against Gram-Negative Bacteria
Article Menu

Export Article

Open AccessArticle
Nanomaterials 2015, 5(1), 298-320; doi:10.3390/nano5010298

Chemokine-Releasing Nanoparticles for Manipulation of the Lymph Node Microenvironment

1
Center for Applied Proteomics and Molecular Medicine, Department of Molecular Microbiology, School of Systems Biology, George Mason University, Manassas, VA 20110, USA
2
National Center for Biodefense and Infectious Diseases, Department of Molecular Microbiology, School of Systems Biology, George Mason University, Manassas, VA 20110, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Subramanian Tamil Selvan
Received: 9 January 2015 / Revised: 9 February 2015 / Accepted: 27 February 2015 / Published: 5 March 2015
(This article belongs to the Special Issue Nanoparticles in Theranostics)
View Full-Text   |   Download PDF [5150 KB, uploaded 5 March 2015]   |  

Abstract

Chemokines (CKs) secreted by the host cells into surrounding tissue establish concentration gradients directing the migration of leukocytes. We propose an in vivo CK gradient remodeling approach based on sustained release of CKs by the crosslinked poly(N-isopropylacrylamide) hydrogel open meshwork nano-particles (NPs) containing internal crosslinked dye affinity baits for a reversible CK binding and release. The sustained release is based on a new principle of affinity off-rate tuning. The NPs with Cibacron Blue F3G-A and Reactive Blue-4 baits demonstrated a low-micromolar affinity binding to IL-8, MIP-2, and MCP-1 with a half-life of several hours at 37 °C. The capacity of NPs loaded with IL-8 and MIP-1α to increase neutrophil recruitment to lymph nodes (LNs) was tested in mice after footpad injection. Fluorescently-labeled NPs used as tracers indicated the delivery into the sub-capsular compartment of draining LNs. The animals administered the CK-loaded NPs demonstrated a widening of the sub-capsular space and a strong LN influx of leukocytes, while mice injected with control NPs without CKs or bolus doses of soluble CKs alone showed only a marginal neutrophil response. This technology provides a new means to therapeutically direct or restore immune cell traffic, and can also be employed for simultaneous therapy delivery. View Full-Text
Keywords: nanoparticles; chemokines; neutrophils; lymph node nanoparticles; chemokines; neutrophils; lymph node
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Popova, T.G.; Teunis, A.; Magni, R.; Luchini, A.; Espina, V.; Liotta, L.A.; Popov, S.G. Chemokine-Releasing Nanoparticles for Manipulation of the Lymph Node Microenvironment. Nanomaterials 2015, 5, 298-320.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Nanomaterials EISSN 2079-4991 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top