Efficient Internalization of Peptide-Conjugated SPIONs in Dendritic Cells for Tumor Targeting

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Antigen delivery using nanoparticles becomes useful and novel strategy to develop immunotherapeutic approaches against cancer. In the current study, we examined the feasibility of SPIONsmediated delivery of antigenic peptides to local tumor for application to cancer immunotherapy. SPIONs carrying murine melanoma antigens, hgp10025–33 were prepared and used to test its efficacy in mouse model. Efficient uptake of peptide-conjugated SPIONs by murine dendritic cells (DCs) was shown, using NP labeled with the fluorescent dye Furthermore, potential targeting effect of SPIONs carrying tumor antigenic peptide was verified in vitro and in vivo. Our results demonstrate the feasibility of SPIONs-mediated antigen delivery for cancer immunotherapy and highlight the clinical potential of SPIONs for future cancer treatment with high efficacy.

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2012.6379

Publication date: July 1, 2012

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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