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Dissecting Innate Immune Signaling in Viral Evasion of Cytokine Production
08:32

Dissecting Innate Immune Signaling in Viral Evasion of Cytokine Production

Published on: March 2, 2014

Cytopathic effects: virus-modulated manifestations of innate immunity?

Vadim I Agol1

  • 1MP Chumakov Institute of Poliomyelitis and Viral Encephalitides, Russian Academy of Medical Sciences, Moscow 142782, Russia. agol@belozersky.msu.ru

Trends in Microbiology
|October 18, 2012
PubMed

Insights

Viruses injure cells through cytopathic effects (CPE), but this damage may stem from host defenses and viral counter-defenses, not just viral reproduction. These interactions involve a host-encoded cell suicide program influenced by various factors.

Area of Science:

  • Virology
  • Cell Biology
  • Immunology

Background:

  • Viruses possess the ability to induce cell damage, known as cytopathic effect (CPE).
  • Traditionally, CPE is attributed to viruses consuming cellular resources for replication.
  • Emerging evidence suggests CPE may result from host-defense and viral counter-defense mechanisms.

Purpose of the Study:

  • To explore the mechanisms underlying viral cytopathic effects (CPE).
  • To investigate the role of host-cellular interactions in CPE beyond viral replication.
  • To understand the involvement of host-encoded cell death pathways in virus-induced cell injury.

Main Methods:

  • Review of existing literature on viral cytopathic effects.
  • Analysis of host-virus interaction pathways.
  • Examination of cellular defense and viral counter-defense strategies.

Main Results:

  • Cytopathic effect (CPE) is not solely dependent on viral replication.
  • Host defensive and viral anti-defensive activities significantly contribute to CPE.
  • A host-encoded program with competing pathways for cell suicide (necrosis, apoptosis) is implicated.

Conclusions:

  • Viral-induced cell injury involves complex host-virus interactions.
  • Host-encoded cell suicide programs play a crucial role in mediating CPE.
  • Modulation of these programs by host, viral, and environmental factors influences disease outcomes.

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