Progression to persistent lymphocytosis and tumor development in bovine leukemia virus (BLV)-infected cattle correlates with impaired proliferation of CD4+ T cells in response to gag- and env-encoded BLV proteins.

Abstract excerpt

The mechanism of leukemogenesis and persistent lymphocytosis (PL; benign expansion of B lymphocytes) in cattle infected with bovine leukemia virus (BLV; a retrovirus closely related to human T-cell leukemia virus type 1) is unknown; however, the immune system likely plays an important role in controlling the outcome of infection. In this study, we compared T-cell competence in serologically positive...

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