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Non-primate foamy viruses

A Saïb1

  • 1CNRS UPR9051, Hôpital Saint-Louis, 1 Avenue Claude Vellefaux, 75475 Paris Cedex 10, France. alisaib@infobiogen.fr

Current Topics in Microbiology and Immunology
|August 12, 2003
PubMed

Insights

Foamy viruses (PFVs), or spumaviruses, cause cell lysis in culture but are apathogenic in hosts. Comparing diverse PFV isolates aids understanding of these complex retroviruses.

Area of Science:

  • * Virology
  • * Molecular Biology
  • * Retroviruses

Background:

  • * Foamy viruses (PFVs), also known as spumaviruses, are complex retroviruses.
  • * PFVs induce a distinct cytopathic effect, causing rapid cell lysis in cell cultures.
  • * While primarily isolated from non-human primates, PFVs have also been identified in bovines, felines, and equines.

Purpose of the Study:

  • * To compare the biology of different foamy virus isolates.
  • * To gain insights into the replication and pathogenic mechanisms of PFVs.
  • * To understand the in vivo apathogenicity of PFVs despite their cytopathic effects in vitro.

Main Methods:

  • * Characterization of foamy virus isolates from various species.
  • * In vitro studies of cytopathic effects in cell culture.
  • * In vivo studies to assess pathogenicity and host immune response.

Main Results:

  • * PFVs demonstrate a characteristic rapid cell lysis in cell culture.
  • * Non-primate PFVs, including bovine, feline, and equine foamy viruses, have been characterized.
  • * In their natural hosts, PFVs appear to be apathogenic, suggesting effective in vivo viral control.

Conclusions:

  • * Comparative analysis of PFV isolates is crucial for understanding retroviral biology.
  • * The discrepancy between in vitro cytopathic effects and in vivo apathogenicity highlights complex host-virus interactions.
  • * Further research into PFV biology can elucidate mechanisms of retroviral persistence and control.

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