Cited by 161Alzheimer's disease research and treatmentsHerpesvirus Infections and TreatmentsNeuroinflammation and Neurodegeneration Mechanisms

Protective Effect of Amyloid-β Peptides Against Herpes Simplex Virus-1 Infection in a Neuronal Cell Culture Model

Bourgade, Karine, Le Page, Aurélie, Bocti, Christian, Witkowski, Jacek M., Dupuis, Gilles, Frost, Eric H., Fülöp, Tamás·2016·Journal of Alzheimer’s Disease

Abstract

Senile amyloid plaques are one of the main hallmarks of Alzheimer’s disease (AD). They correspond to insoluble deposits of amyloid-β peptides (Aβ) and are responsible for the inflammatory response and neurodegeneration that lead to loss of memory. Recent data suggest that Aβ possess antimicrobial and anti-viral activity in vitro . Here, we have used cocultures of neuroglioma (H4) and glioblastoma (U118-MG) cells as a minimal in vitro model to investigate whether Aβ is produced by neuroglioma cells and whether this could result in protective anti-viral activity against HSV-1 infection. Results showed that H4 cells secreted Aβ 42 in response to HSV-1 challenge and that U118-MG cells could rapidly internalize Aβ 42 . Production of pro-inflammatory cytokines TNF α and IL-1β by H4 and U118-MG cells occurred under basal conditions but infection of the cells with HSV-1 did not significantly upregulate production. Both cell lines produced low levels of IFN α . However, extraneous Aβ 42 induced strong production of these cytokines. A combination of Aβ 42 and HSV-1 induced production of pro-inflammatory cytokines TNF α and IL-1β, and IFN α in the cell lines. The reported anti-viral protection of Aβ 42 was revealed in transfer experiments involving conditioned medium (CM) of HSV-1-infected H4 cells. CM conferred Aβ-dependent protection against HSV-1 replication in de novo cultures of H4 cells challenged with HSV-1. Type 1 interferons did not play a role in these assays. Our data established that H4 neuroglioma cells produced Aβ 42 in response to HSV-1 infection thus inhibiting secondary replication. This mechanism may play a role in the etiology of AD.

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Crossref · 10.3233/jad-150652

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Authors
Bourgade, K., Le Page, A., Bocti, C., Witkowski, J. M., Dupuis, G., Frost, E. H., & Fülöp, T.
Affiliations
  • Université de Sherbrooke (CA)
  • Research Center on Aging, Graduate Program in Immunology, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
  • Gdańsk Medical University (PL)
  • Department of Medicine, Research Center on Aging, Graduate Program in Immunology, Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, QC, Canada
Venue
Journal of Alzheimer’s Disease
Published
2016-01-19
Volume
50
Issue
4
Pages
1227-1241
ISSN
  • 1387-2877 (ISSN-L)
  • 1875-8908
OpenAlex
W2293235256
Cited by
161
References
83
Citations by year
2026: 9 · 2025: 18 · 2024: 4 · 2023: 13 · 2022: 23 · 2021: 28 · 2020: 18 · 2019: 18 · 2018: 18 · 2017: 8 · 2016: 4
FWCI
12.87
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Alzheimer s Disease (publishedVersion)
  • PubMed (publishedVersion)
Funders
Canadian Institutes of Health Research (106634)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Epidemiology › Herpesvirus Infections and Treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
amyloid-beta 42, herpes simplex virus type 1
MeSH terms
Herpes Simplex, Humans, Neuroglia, Neurons, Peptide Fragments, Tumor Necrosis Factor-alpha, Virus Replication, Amyloid beta-Peptides, Interferon-alpha, Culture Media, Conditioned, Herpesvirus 1, Human, Coculture Techniques, Cell Line, Tumor, Interleukin-1beta, Amyloid Precursor Protein Secretases

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