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Dying to replicate: the orchestration of the viral life cycle, cell death pathways, and immunity

Nader Yatim1, Matthew L Albert

  • 1Unité d'Immunologie des Cellules Dendritiques, Departement d'Immunologie, Institut Pasteur and Inserm U818, Paris France.

Immunity
|November 1, 2011
PubMed

Insights

Viruses manipulate host cell death for replication and transmission. This interaction may have driven the evolution of cell death genes, creating a survival trade-off between host and virus.

Area of Science:

  • Virology
  • Immunology
  • Cell Biology

Background:

  • Host-microbe interactions frequently involve manipulation of host cell death pathways.
  • Understanding these interactions is crucial for developing antiviral strategies.

Purpose of the Study:

  • To examine how viruses like influenza A and cytomegalovirus interact with host cell death pathways.
  • To identify interconnections between viral processes and host responses such as inflammation and immunity.

Main Methods:

  • Analysis of viral entry, replication, and transmission mechanisms.
  • Examination of host cell death induction, inflammation, and immune responses during infection.

Main Results:

  • Viral manipulation of cell death pathways is a key feature of both acute (influenza A) and chronic (cytomegalovirus) infections.
  • Delayed host cell death benefits viral replication, while cell death perturbations can initiate host immune responses.

Conclusions:

  • Evolution of death-associated genes may be influenced by microbial pressure.
  • Viral-host interactions involving cell death represent a potential trade-off for mutual survival or a microbial strategy.

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