Glycosaminoglycan-like sulfated polysaccharides from Vibrio diabolicus bacterium: Semi-synthesis and characterization

Type Article
Date 2022-05
Language English
Author(s) Esposito Fabiana1, Vessella Giulia1, Sinquin CorinneORCID2, Traboni Serena1, Iadonisi Alfonso1, Colliec-Jouault SylviaORCID2, Zykwinska AgataORCID2, Bedini Emiliano1
Affiliation(s) 1 : Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S.Angelo, via Cintia 4, I-80126 Napoli, Italy
2 : IFREMER, BRM, 44300 Nantes, France
Source Carbohydrate Polymers (0144-8617) (Elsevier BV), 2022-05 , Vol. 283 , P. 119054 (9p.)
DOI 10.1016/j.carbpol.2021.119054
WOS© Times Cited 10
Keyword(s) Exopolysaccharides, Glycosaminoglycans, Semi-synthesis, Sulfation, Growth factors

Sulfated glycosaminoglycan (GAG) analogues derived from plant, algae or microbial sourced polysaccharides are highly interesting in order to gain bioactivities similar to sulfated GAGs but without risks and concerns derived from their typical animal sources. Since the exopolysaccharide (EPS) produced by the bacterium Vibrio diabolicus HE800 strain from deep-sea hydrothermal vents is known to have a GAG-like structure with a linear backbone composed of unsulfated aminosugar and uronic acid monomers, its structural modification through four different semi-synthetic sulfation strategies has been performed. A detailed structural characterization of the six obtained polysaccharides revealed that three different sulfation patterns (per-O-sulfation, a single N-sulfation and a selective primary hydroxyls sulfation) were achieved, with molecular weights ranging from 5 to 40 kDa. A Surface Plasmonic Resonance (SPR) investigation of the affinity between such polysaccharides and a set of growth factors revealed that binding strength is primarily depending on polysaccharide sulfation degree.

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Esposito Fabiana, Vessella Giulia, Sinquin Corinne, Traboni Serena, Iadonisi Alfonso, Colliec-Jouault Sylvia, Zykwinska Agata, Bedini Emiliano (2022). Glycosaminoglycan-like sulfated polysaccharides from Vibrio diabolicus bacterium: Semi-synthesis and characterization. Carbohydrate Polymers, 283, 119054 (9p.). Publisher's official version : , Open Access version :