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Updated: May 29, 2026

Modeling The Lifecycle Of Ebola Virus Under Biosafety Level 2 Conditions With Virus-like Particles Containing Tetracistronic Minigenomes
Published on: September 27, 2014
Intracellular events and cell fate in filovirus infection
Judith Olejnik1, Elena Ryabchikova, Ronald B Corley
1Department of Microbiology, School of Medicine, Boston University, Boston, MA 02118, USA. jolejnik@bu.edu
Abstract:
Marburg and Ebola viruses cause a severe hemorrhagic disease in humans with high fatality rates. Early target cells of filoviruses are monocytes, macrophages, and dendritic cells. The infection spreads to the liver, spleen and later other organs by blood and lymph flow. A hallmark of filovirus infection is the depletion of non-infected lymphocytes; however, the molecular mechanisms leading to the observed bystander lymphocyte apoptosis are poorly understood. Also, there is limited knowledge about the fate of infected cells in filovirus disease. In this review we will explore what is known about the intracellular events leading to virus amplification and cell damage in filovirus infection. Furthermore, we will discuss how cellular dysfunction and cell death may correlate with disease pathogenesis.
Insights
Marburg and Ebola viruses cause severe hemorrhagic fevers by infecting immune cells. This review explores how these filoviruses damage cells and spread, impacting disease progression.
Area of Science:
- Virology
- Immunology
- Pathogenesis
Background:
- Marburg and Ebola viruses cause severe hemorrhagic diseases with high fatality rates.
- Filoviruses initially target monocytes, macrophages, and dendritic cells, spreading via blood and lymph.
- Bystander lymphocyte apoptosis is a hallmark, but its mechanisms and the fate of infected cells remain unclear.
Purpose of the Study:
- To review intracellular events in filovirus infection.
- To explore virus amplification and cell damage mechanisms.
- To discuss the correlation between cellular dysfunction, cell death, and disease pathogenesis.
Main Methods:
- Literature review of intracellular events in filovirus infection.
- Analysis of cellular mechanisms of virus amplification and damage.
- Discussion of pathogenesis based on cellular dysfunction and death.
Main Results:
- Filovirus infection leads to immune cell targeting and systemic spread.
- Cellular dysfunction and death are key features of filovirus disease.
- Mechanisms of bystander lymphocyte apoptosis require further investigation.
Conclusions:
- Understanding intracellular events is crucial for filovirus disease pathogenesis.
- Cellular damage and death pathways are central to disease progression.
- Further research is needed on bystander lymphocyte apoptosis and infected cell fate.
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