Journal
BIOCONJUGATE CHEMISTRY
Volume 25, Issue 12, Pages 2244-2251Publisher
AMER CHEMICAL SOC
DOI: 10.1021/bc500467u
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Funding
- European Union [Carmusys FP7-PEOPLE-213592]
- project RSPPTECH (CNR)
- project RSPPTECH (Regione Lombardia convenzione operativa) [18095/RCC]
- Spanish Ministry of Science and Innovation, MICINN [CTQ2011-27268]
- MICINN [CTQ2008-04638]
- Dutch Asthma Foundation [3.2.10.040]
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Dendritic Cells (DCs), the most potent antigen-presenting cells, play a critical role in the detection of invading pathogens, which are recognized also by multiple carbohydrate-specific receptors. Among them, DC-SIGN is one of the best characterized, with high-mannose and Lewis-type glycan specificity. In this study, we present a potent DC-SIGN targeting device developed using gold nanoparticles functionalized with a-fucosyl-beta-alanyl amide. The nanoparticles bound to cellular DC-SIGN and induced internalization as effectively as similar particles coated with comparable amounts of Lewis(X) oligosaccharide. They were found to be neutral toward dendritic cell maturation and IL-10 production, thus envisaging a possible use as targeted imaging tools and antigen delivery devices.
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