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Multivalent Glycosylated Nanostructures To Inhibit Ebola Virus Infection

AuthorsIllescas, Beatriz M.; Rojo, J. M. ; Delgado, Rafael; Martín, Nazario
Issue Date2017
PublisherAmerican Chemical Society
CitationJournal of the American Chemical Society 139: 6018- 6025 (2017)
AbstractThe infection of humans by lethal pathogens such as Ebola and other related viruses has not been properly addressed so far. In this context, a relevant question arises: What can chemistry do in the search for new strategies and approaches to solve this emergent problem? Although initially a variety of known chemical compounds-for other purposes-proved disappointing in tests against Ebola virus (EBOV) infection, more recently, specific molecules have been prepared. In this Perspective, we present new approaches directed at the design of efficient entry inhibitors to minimize the development of resistance by viral mutations. In particular, we focus on dendrimers as well as fullerene C-with a unique symmetrical and 3D globular structure-as biocompatible carbon platforms for the multivalent presentation of carbohydrates. The antiviral activity of these compounds in an Ebola pseudotyped infection model was in the low micromolar range for fullerenes with 12 and 36 mannoses. However, new tridecafullerenes-in which the central alkyne scaffold of [60]fullerene is connected to 12 sugar-containing [60]fullerene units (total 120 mannoses)-exhibit an outstanding antiviral activity with IC in the sub-nanomolar range! The multivalent presentation of specific carbohydrates by using 3D fullerenes as controlled biocompatible carbon scaffolds represents a real advance, being currently the most efficient molecules in vitro against EBOV infection. However, additional studies are needed to determine the optimized fullerene-based leads for practical applications.
Identifiersdoi: 10.1021/jacs.7b01683
issn: 1520-5126
Appears in Collections:(IIQ) Artículos
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