Synthesis of Highly Efficient Multivalent Disaccharide/[60]Fullerene Nanoballs for Emergent Viruses
作者:Javier Ramos-Soriano、José J. Reina、Beatriz M. Illescas、Noelia de la Cruz、Laura Rodríguez-Pérez、Fátima Lasala、Javier Rojo、Rafael Delgado、Nazario Martín
DOI:10.1021/jacs.9b08003
日期:2019.9.25
After the last epidemic of Zika virus (ZIKV) in Brazil that peacked in 2016, it has been demonstrated growing evidence of the link between this teratogenic flavivirus and microcephaly cases. However, no vaccine or antiviral drug has been yet approved. ZIKV and Dengue virus (DENV) entry to the host cell takes place through several receptors including DC-SIGN (dendritic cell-specific intercellular adhesion
Giant Glycosidase Inhibitors: First- and Second-Generation Fullerodendrimers with a Dense Iminosugar Shell
作者:Jean-François Nierengarten、Jérémy P. Schneider、Thi Minh Nguyet Trinh、Antoine Joosten、Michel Holler、Mathieu L. Lepage、Anne Bodlenner、M. Isabel García-Moreno、Carmen Ortiz Mellet、Philippe Compain
DOI:10.1002/chem.201705600
日期:2018.2.16
The multivalent effect in glycosidase inhibition is a new topic in glycoscience that has emerged a few years ago, with the discovery of neoglycoclusters displaying strong binding enhancements over the corresponding monovalent inhibitor. Iminosugar–fullerene conjugates with high valencies have been prepared from iminosugar‐terminated dendrons and a clickable fullerene hexa‐adduct scaffold. The simultaneous
Water-soluble glycofullerenes based on a hexakis-adduct of [60]fullerene with an octahedral addition pattern are very attractive compounds providing a spherical presentation of carbohydrates. These tools have been recently described and they have been used to interact with lectins in a multivalent manner. Here, we present the use of these glycofullerenes, including new members with 36 mannoses, as compounds able to inhibit a DC-SIGN-dependent cell infection by pseudotyped viral particles. The results obtained in these experiments demonstrate for the first time that these glycoconjugates are adequate to inhibit efficiently an infection process, and therefore, they can be considered as very promising and interesting tools to interfere in biological events where lectins such as DC-SIGN are involved.