Role of Feline Immunodeficiency Virus in Lymphomagenesis—Going Alone or Colluding?
2016
Kaye, Sarah | Wang, Wenqi | Miller, Craig | McLuckie, Alicia | Beatty, Julia A. | Grant, Chris K. | VandeWoude, Sue | Bielefeldt-Ohmann, Helle
Feline immunodeficiency virus (FIV) is a naturally occurring lentivirus of domestic and nondomestic feline species. Infection in domestic cats leads to immune dysfunction via mechanisms similar to those caused by human immunodeficiency virus (HIV) and, as such, is a valuable natural animal model for acquired immunodeficiency syndrome (AIDS) in humans. An association between FIV and an increased incidence of neoplasia has long been recognized, with frequencies of up to 20% in FIV-positive cats recorded in some studies. This is similar to the rate of neoplasia seen in HIV-positive individuals, and in both species neoplasia typically requires several years to arise. The most frequently reported type of neoplasia associated with FIV infection is lymphoma. Here we review the possible mechanisms involved in FIV lymphomagenesis, including the possible involvement of coinfections, notably those with gamma-herpesviruses.
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