Second-Generation Dendrimers with Chondroitin Sulfate Type-E Disaccharides as Multivalent Ligands for Langerin

Biomacromolecules. 2020 Jul 13;21(7):2726-2734. doi: 10.1021/acs.biomac.0c00476. Epub 2020 Jun 24.

Abstract

Chondroitin sulfate type-E (CS-E) is a sulfated polysaccharide that shows several interesting biological activities, such as modulation of the neuronal growth factor signaling and its interaction with langerin, a C-type lectin with a crucial role in the immunological system. However, applications of CS-E are hampered by the typical heterogeneous structure of the natural polysaccharide. Well-defined, homogeneous CS-E analogues are highly demanded. Here, we report the synthesis of monodispersed, structurally well-defined second-generation glycodendrimers displaying up to 18 CS-E disaccharide units. These complex multivalent systems have a molecular weight and a number of disaccharide repeating units comparable with those of the natural polysaccharides. In addition, surface plasmon resonance experiments revealed a calcium-independent interaction between these glycodendrimers and langerin, in the micromolar range, highlighting the utility of these compounds as CS-E mimetics.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Chondroitin Sulfates*
  • Dendrimers*
  • Disaccharides
  • Ligands
  • Polysaccharides

Substances

  • Dendrimers
  • Disaccharides
  • Ligands
  • Polysaccharides
  • Chondroitin Sulfates