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Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/98319
Título

Oxidative Stress Enhances Neurodegeneration Markers Induced by Herpes Simplex Virus Type 1 Infection in Human Neuroblastoma Cells

AutorSantana, Soraya; Sastre, Isabel; Recuero, María; Bullido, María Jesús; Aldudo Jesús
Fecha de publicación2013
EditorPublic Library of Science
CitaciónPLoS ONE 8 (2013)
ResumenMounting evidence suggests that Herpes simplex virus type 1 (HSV-1) is involved in the pathogenesis of Alzheimer's disease (AD). Previous work from our laboratory has shown HSV-1 infection to induce the most important pathological hallmarks of AD brains. Oxidative damage is one of the earliest events of AD and is thought to play a crucial role in the onset and development of the disease. Indeed, many studies show the biomarkers of oxidative stress to be elevated in AD brains. In the present work the combined effects of HSV-1 infection and oxidative stress on Aβ levels and autophagy (neurodegeneration markers characteristic of AD) were investigated. Oxidative stress significantly potentiated the accumulation of intracellular Aβ mediated by HSV-1 infection, and further inhibited its secretion to the extracellular medium. It also triggered the accumulation of autophagic compartments without increasing the degradation of long-lived proteins, and enhanced the inhibition of the autophagic flux induced by HSV-1. These effects of oxidative stress were not due to enhanced virus replication. Together, these results suggest that HSV-1 infection and oxidative damage interact to promote the neurodegeneration events seen in AD. © 2013 Santana et al.
URIhttp://hdl.handle.net/10261/98319
DOI10.1371/journal.pone.0075842
Identificadoresdoi: 10.1371/journal.pone.0075842
issn: 1932-6203
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