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Modeling The Lifecycle Of Ebola Virus Under Biosafety Level 2 Conditions With Virus-like Particles Containing Tetracistronic Minigenomes
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Ebola virus-like particles reprogram cellular metabolism.

Huaqi Tang1, Yasmine Abouleila1, Anno Saris2

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Ebola virus exposure alters metabolism in endothelial cells and macrophages. This study identified key changes in fatty acid, steroid, and amino acid pathways, crucial for understanding Ebola virus disease progression.

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Area of Science:

  • Virology
  • Immunology
  • Metabolomics

Background:

  • Ebola virus causes severe disease through cytokine release, vascular leakage, and organ failure.
  • Ebola virus directly interacts with endothelial cells and macrophages, impacting cellular mechanics and immune responses.
  • The metabolic activity of these host cells during Ebola virus infection is poorly understood.

Purpose of the Study:

  • To investigate metabolic alterations in primary human endothelial cells and M1/M2 macrophages exposed to Ebola virus-like particles (VLPs).
  • To identify specific metabolic pathways and metabolites affected by Ebola VLP exposure in a host cell-specific manner.

Main Methods:

  • Utilized an untargeted cellular metabolomic approach.
  • Exposed primary human endothelial cells and M1/M2 macrophages to Ebola VLPs.
  • Performed differential metabolite abundance and signaling pathway analysis.

Main Results:

  • Ebola VLPs induced significant metabolic changes in endothelial cells, M1 macrophages, and M2 macrophages.
  • Key metabolic alterations were observed in fatty acid, steroid, and amino acid metabolism pathways.
  • Host cell-specific metabolic features were identified following Ebola VLP exposure.

Conclusions:

  • This study provides the first characterization of metabolic changes in endothelial cells and macrophage subtypes upon Ebola VLP exposure.
  • Identified specific metabolites and perturbed pathways, highlighting their role in Ebola virus disease.
  • Metabolic alterations in host cells are critical for Ebola virus pathogenesis and progression.