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Journal of General Virology header logo Journal of General Virology

Volume 105, Issue 10

Organotypic brain slices as a model to study the neurotropism of the highly pathogenic Nipah and Ebola viruses Open Access

Abstract

Nipah virus (NiV) and Ebola virus (EBOV) are highly pathogenic zoonotic viruses with case fatality rates of up to 90%. While the brain is a known target organ following NiV infection, involvement of the central nervous system in EBOV-infected patients only became more evident after the West African epidemic in 2013–2016. To gain a deeper comprehension of the neurotropism of NiV and EBOV with respect to target cells, affected brain regions and local inflammatory responses, murine organotypic brain slices (BS) were established and infected. Both NiV and EBOV demonstrated the capacity to infect BS from adult wt mice and mice lacking the receptor for type I IFNs (IFNAR) and targeted various cell types. NiV was observed to replicate in BS derived from both mouse strains, yet no release of infectious particles was detected. In contrast, EBOV replication was limited in both BS models. The release of several pro-inflammatory cytokines and chemokines, including eotaxin, IFN-γ, IL-1α, IL-9, IL-17a and keratinocyte-derived chemokine (KC), was observed in both virus-infected models, suggesting a potential role of the inflammatory response in NiV- or EBOV-induced neuropathology. It is noteworthy that the choroid plexus was identified as a highly susceptible target for EBOV and NiV infection, suggesting that the blood–cerebrospinal fluid barrier may serve as a potential entry point for these viruses.

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  • Accepted:
  • Published Online:
Keyword(s): chemokines , choroid plexus , cytokines , EBOV , neurotropism , NiV and organotypic brain slices
Funding
This study was supported by the:
  • Deutsches Zentrum für Infektionsforschung
    • Principal Award Recipient: KupkeAlexandra
© 2024 The Authors
  • This is an open-access article distributed under the terms of the Creative Commons Attribution License.
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2024-10-28
2025-11-16

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Organotypic brain slices as a model to study the neurotropism of the highly pathogenic Nipah and Ebola viruses
J. Gen. Virol. 105, 002038 (2024); https://doi.org/10.1099/jgv.0.002038
/content/journal/jgv/10.1099/jgv.0.002038
/content/journal/jgv/10.1099/jgv.0.002038
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