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Title

Synthesis, physicochemical characterization and biological evaluation of chitosan sulfate as heparan sulfate mimics

AuthorsDoncel-Pérez, E.; Aranaz, I.; Bastida, Agatha; Revuelta, Julia ; Camacho, Carlos ; Acosta, N.; Garrido, Leoncio ; Civera, C.; García-Junceda, Eduardo ; Heras, A.; Fernández-Mayoralas, Alfonso
KeywordsHeparan sulfate mimics
Physicochemical parameters
Protein growth factors
Neural precursor cells
Chitosan sulfate
Issue Date2018
PublisherPergamon Press
CitationCarbohydrate Polymers 191: 225-233 (2018)
AbstractDespite the relevant biological functions of heparan sulfate (HS) glycosaminoglycans, their limited availability and the chemical heterogeneity from natural sources hamper their use for biomedical applications. Chitosan sulfates (ChS) exhibit structural similarity to HSs and may mimic their biological functions. We prepared a variety of ChS with different degree of sulfation to evaluate their ability to mimic HS in protein binding and to promote neural cell division and differentiation. The structure of the products was characterized using various spectroscopic and analytical methods. The study of their interaction with different growth factors showed that ChS bound to the proteins similarly or even better than heparin. In cell cultures, a transition effect on cell number was observed as a function of ChS concentration. Differences in promoting the expression of the differentiation markers were also found depending on the degree of sulfation and modification in the chitosan.
Publisher version (URL)http://dx.doi.org/10.1016/j.carbpol.2018.03.036
URIhttp://hdl.handle.net/10261/167011
Identifiersdoi: 10.1016/j.carbpol.2018.03.036
issn: 0144-8617
e-issn: 1879-1344
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