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Mechanisms of cell killing/cytopathic effects by nonhuman retroviruses

H M Temin1

  • 1McArdle Laboratory, University of Wisconsin, Madison 53706.

Reviews of Infectious Diseases
|March 1, 1988
PubMed

Insights

This review explores how retroviruses kill cells, shifting focus from cancer to the mechanisms behind cell death, particularly in human immunodeficiency virus infections. It suggests viral envelope proteins interacting with cell receptors may cause this cytopathic effect.

Area of Science:

  • Virology
  • Immunology
  • Oncology

Background:

  • Retroviruses were initially studied for their oncogenic properties.
  • The human immunodeficiency virus (HIV) epidemic highlighted retroviral cytopathic effects, specifically CD4-positive T-cell depletion.
  • Numerous other retroviruses also exhibit cytopathic behavior.

Purpose of the Study:

  • To review studies on the mechanisms of cell killing by various cytopathic retroviruses.
  • To explore the potential role of viral envelope protein-cell receptor interactions in retroviral-induced cell death.

Main Methods:

  • Literature review of studies on cytopathic retroviruses.
  • Analysis of proposed mechanisms for retroviral cell killing.

Main Results:

  • Retroviral infection can lead to significant cell death, impacting immune function.
  • The interaction between viral envelope proteins and cellular receptors is a key area of investigation.
  • Superinfection has been proposed as a contributing factor to cell killing.

Conclusions:

  • Understanding retroviral cytopathic mechanisms is crucial, especially in light of HIV.
  • Increased viral envelope protein-cell receptor interaction is a plausible hypothesis for retroviral-induced cell death.
  • Further research into these mechanisms can inform therapeutic strategies against retroviral infections.

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