Anti-Siglec-1 antibodies block Ebola viral uptake and decrease cytoplasmic viral entry

Anti-Siglec-1 antibodies block Ebola viral uptake and decrease cytoplasmic viral entry

Fecha de publicación online: 03/06/2019 Revista: Nature Microbiology

Abstract:

Several Ebola viruses cause outbreaks of lethal haemorrhagic fever in humans, but developing therapies tackle only Zaire Ebola virus. Dendritic cells (DCs) are targets of this infection in vivo. Here, we found that Ebola virus entry into activated DCs requires the sialic acid-binding Ig-like lectin 1 (Siglec-1/CD169), which recognizes sialylated gangliosides anchored to viral membranes. Blockage of the Siglec-1 receptor by anti-Siglec-1 monoclonal antibodies halted Ebola viral uptake and cytoplasmic entry, offering cross-protection against other ganglioside-containing viruses such as human immunodeficiency virus type 1.

Autores: Perez-Zsolt D, Erkizia I, Pino M, García-Gallo M, Martin MT, Benet S, Chojnacki J, Fernández-Figueras MT, Guerrero D, Urrea V, Muñiz-Trabudua X, Kremer L, Martinez-Picado J, Izquierdo-Useros N.

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