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Title

Role of proteolipid protein in HSV-1 entry in oligodendrocytic cells

AuthorsBello-Morales, Raquel; Crespillo, Antonio Jesús; Praena, Beatriz; Tabarés, Enrique; Revilla Novella, Yolanda; García, Elena; Fraile-Ramos, Alberto; Baron, Wia; Krummenacher, Claude; López-Guerrero, José Antonio CSIC ORCID
Issue Date25-Jan-2016
PublisherPublic Library of Science
CitationPLoS ONE 11 (2016)
AbstractHerpes simplex virus type 1 (HSV-1) has the ability to enter many different hosts and cell types by several strategies. This highly prevalent alphaherpesvirus can enter target cells using different receptors and different pathways: fusion at a neutral pH, low-pH-dependent and low-pH-independent endocytosis. Several cell receptors for viral entry have been described, but several observations suggest that more receptors for HSV-1 might exist. In this work, we propose a novel role for the proteolipid protein (PLP) in HSV-1 entry into the human oligodendrocytic cell line HOG. Cells transfected with PLP-EGFP showed an increase in susceptibility to HSV-1. Furthermore, the infection of HOG and HOG-PLP transfected cells with the R120vGF virus-unable to replicate in ICP4-defficient cells-showed an increase in viral signal in HOG-PLP, suggesting a PLP involvement in viral entry. In addition, a mouse monoclonal antibody against PLP drastically inhibited HSV-1 entry into HOG cells. PLP and virions colocalized in confocal immunofluorescence images, and in electron microscopy images, which suggest that PLP acts at the site of entry into HOG cells. Taken together these results suggest that PLP may be involved in HSV-1 entry in human oligodendrocytic cells.
URIhttp://hdl.handle.net/10261/152099
DOI10.1371/journal.pone.0147885
Identifiersdoi: 10.1371/journal.pone.0147885
issn: 1932-6203
Appears in Collections:(CBM) Artículos

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