When Dendritic Cells Go Viral : The Role of Siglec-1 in Host Defense and Dissemination of Enveloped Viruses
Perez-Zsolt, Daniel (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol)
Martínez Picado, Francisco Javier (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol)
Izquierdo Useros, Nuria (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol)

Date:	2019
Abstract:	Dendritic cells (DCs) are among the first cells that recognize incoming viruses at the mucosal portals of entry. Initial interaction between DCs and viruses facilitates cell activation and migration to secondary lymphoid tissues, where these antigen presenting cells (APCs) prime specific adaptive immune responses. Some viruses, however, have evolved strategies to subvert the migratory capacity of DCs as a way to disseminate infection systemically. Here we focus on the role of Siglec-1, a sialic acid-binding type I lectin receptor potently upregulated by type I interferons on DCs, that acts as a double edge sword, containing viral replication through the induction of antiviral immunity, but also favoring viral spread within tissues. Such is the case for distant enveloped viruses like human immunodeficiency virus (HIV)-1 or Ebola virus (EBOV), which incorporate sialic acid-containing gangliosides on their viral membrane and are effectively recognized by Siglec-1. Here we review how Siglec-1 is highly induced on the surface of human DCs upon viral infection, the way this impacts different antigen presentation pathways, and how enveloped viruses have evolved to exploit these APC functions as a potent dissemination strategy in different anatomical compartments.
Grants:	Ministerio de Economía y Competitividad BES-2014-069931
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Siglec-1 ; Dendritic cells ; HIV-1 ; Ebola virus ; Immune evasion
Published in:	Viruses, Vol. 12 (december 2019) , ISSN 1999-4915

DOI: 10.3390/v12010008
PMID: 31861617

19 p, 1.7 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Health sciences and biosciences > Institut d'Investigació en Ciencies de la Salut Germans Trias i Pujol (IGTP)
Articles > Research articles
Articles > Published articles