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[Feline immunodeficiency virus]

O Martinon1, D Lévy

  • 1URA-INRA, Immunopathologie cellulaire et moléculaire (IPCM), Ecole nationale vétérinaire d'Alfort, Maisons-Alfort, France.

Veterinary Research
|January 1, 1993
PubMed

Insights

Feline immunodeficiency virus (FIV) causes an AIDS-like illness in cats by infecting T lymphocytes. Studying FIV in cats offers insights into lentivirus pathogenesis and potential HIV immunity strategies.

Area of Science:

  • Virology
  • Immunology
  • Comparative Medicine

Context:

  • Feline immunodeficiency virus (FIV) is a lentivirus causing an AIDS-like condition in cats.
  • FIV shares genetic similarities with human immunodeficiency virus (HIV) but has a simpler regulatory structure.
  • Unlike HIV, FIV infects both CD4+ and CD8+ T lymphocytes, B lymphocytes, and macrophages in felines.

Purpose:

  • To compare the genetic organization and cellular targets of FIV with other lentiviruses, including HIV.
  • To explore the potential of the feline model for understanding lentiviral pathogenesis.
  • To investigate novel strategies for inducing protective immunity against lentiviral infections.

Summary:

  • Feline immunodeficiency virus (FIV) replicates in feline T lymphoblastoid cells, causing an immunodeficiency syndrome similar to human AIDS.
  • FIV's genetic makeup is closer to ungulate lentiviruses than primate lentiviruses due to reduced regulatory gene complexity.
  • FIV targets a broader range of feline immune cells (CD4+ and CD8+ T cells, B cells, macrophages) than HIV, and its receptor is not solely feline CD4.

Impact:

  • The feline model provides crucial insights into the pathogenesis of immunodeficiency viruses.
  • Understanding FIV may lead to the development of new approaches for generating protective immunity against HIV.
  • This research highlights the importance of comparative virology in advancing human and animal health.

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