Cornil I, Levy D
Laboratoire Immunogénétique INRA, Ecole Nationale Vétérinaire, Alfort, France.
Leukemia. 1989 Feb;3(2):159-61.
Bovine leukemia virus-infected sheep were demonstrated to possess a plasma factor that specifically suppresses in vitro virus expression in lymphocyte cultures. This blocking activity is observed even after phytohemagglutinin (PHA) stimulation and is independent of cellular proliferation. Such a factor may play a critical role in the regulation of BLV expression.