Chemistry - A European Journal
Chemistry - A European Journal
5 years ago

Glycodendrimers as Chondroitin Sulfate Mimetics: Synthesis and Binding to Growth Factor Midkine

Glycodendrimers as Chondroitin Sulfate Mimetics: Synthesis and Binding to Growth Factor Midkine
Javier Rojo, José L. de Paz, Sergio Gil-Caballero, Pedro M. Nieto, José J. Reina, Pedro Domínguez-Rodríguez
Chondroitin sulfate (CS) is a member of the glycosaminoglycan (GAG) family, a class of polysaccharides implicated in relevant biological functions. The structural complexity of these carbohydrates demands the development of simple glycomimetics as useful tools to study the biological processes in which GAGs are involved. In this work we described the synthesis of the disaccharide unit of the CS-E (GlcA-GalNAc(4,6-di-OSO3)), in a multivalent presentation. Using a fluorescence polarization competition assay we have demonstrated that a hexavalent dendrimer of this disaccharide interact with midkine, in the low micromolar range. This result highlights the potency of these disaccharide-displaying multivalent systems as interesting mimetics of longer and synthetically more complex GAG oligosaccharides. Click for chondroitin sulfates: Dendrimers displaying CS disaccharides were efficiently synthesized. These multivalent systems showed high protein binding affinities, mimicking the activity of this biologically relevant polysaccharide.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/chem.201701890

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