Journal
BIOCONJUGATE CHEMISTRY
Volume 22, Issue 7, Pages 1354-1365Publisher
AMER CHEMICAL SOC
DOI: 10.1021/bc2000403
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Funding
- MICINN of Spain [CTQ2008-01694]
- EU RTN CARMUSYS [PITN-GA-2008-213592]
- Comune di Milano [55/2008]
- Sidaction - Ensemble contre le Sida
- Fundacion Mutua Madrileria [FMM2007-700]
- European FEDER
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The development of compounds with strong affinity for the receptor DC-SIGN is a topic of remarkable interest due to the role that this lectin plays in several pathogen infection processes and in the modulation of the immune response. DC-SIGN recognizes mannosylated and fucosylated oligosaccharides in a multivalent manner. Therefore, multivalent carbohydrate systems are required to interact in an. efficient manner with this receptor and compete with the natural ligands. We have previously demonstrated that linear. pseudodi- and pseudotrisaccharides are adequate ligands for DC-SIGN. In this work, we show that multivalent presentations of these glycomimetics based on polyester dendrons and dendrimers lead to very potent inhibitors (in the nanomolar range) of cell infection by Ebola pseudotyped viral particles by blocking DC-SIGN receptor. Furthermore, SPR model experiments confirm that the described multivalent glycomimetic compounds compete in a very efficient manner with polymannosylated ligands for binding to DC-SIGN.
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