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Updated: Oct 14, 2025

Particle Agglutination Method for Poliovirus Identification
Published on: April 20, 2011
[Poliovirus and apoptosis]
B Blondel1, A Autret1, S Martin-Latil1
1Laboratoire des virus entérotropes et stratégies antivirales.
Abstract:
Poliovirus is the causal agent of paralytic poliomyelitis. Flaccid paralysis characteritic of poliomyelitis result from the destruction of motor neurons, the specific target cells of poliovirus in the central nervous system (CNS). The development of new animal and cell models has allowed the key steps of the pathogenesis of poliomyelitis to be investigated at the molecular level. In particular, it has been shown that poliovirus-induced apoptosis is an important component of the tissue injury in the CNS of infected mice that leads to paralysis. In this review, the molecular biology of poliovirus and the pathogenesis of poliomyelitis will be briefly described, and then several models of poliovirus-induced apoptosis will be considered ; the role of the cellular receptor of poliovirus, CD155, in the modulation of apoptosis will also be addressed.
Insights
Poliovirus causes paralytic poliomyelitis by destroying motor neurons. This review explores poliovirus-induced apoptosis and its role in central nervous system injury, highlighting the function of the CD155 receptor.
Area of Science:
- Neurovirology
- Molecular Biology
- Immunology
Context:
- Poliovirus is the causative agent of paralytic poliomyelitis, a disease characterized by flaccid paralysis.
- Motor neuron destruction in the central nervous system (CNS) is the hallmark of poliovirus infection.
- Recent advancements in animal and cell models facilitate molecular-level investigations into poliomyelitis pathogenesis.
Purpose:
- To review the molecular biology of poliovirus and the pathogenesis of poliomyelitis.
- To examine models of poliovirus-induced apoptosis in the context of CNS injury.
- To address the role of the poliovirus receptor, CD155, in modulating apoptosis.
Summary:
- Poliovirus infection leads to motor neuron destruction and paralysis.
- Poliovirus-induced apoptosis is a key mechanism contributing to CNS tissue damage and paralysis in infected mice.
- The cellular receptor CD155 plays a role in regulating apoptosis during poliovirus infection.
Impact:
- Provides insights into the molecular mechanisms underlying poliomyelitis.
- Highlights the significance of apoptosis in viral-induced neurodegeneration.
- Informs potential therapeutic strategies targeting viral entry and apoptosis pathways.
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