B-Cell Leukemia in a Rhesus Macaque (Macaca mulatta) Infected with Simian Immunodeficiency Virus

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Abstract
Conditions associated with abnormal B-cell proliferation have an increased incidence in the HIV-infected population. A longitudinal study conducted at the Tulane Regional Primate Research Center has followed more than 1,000 rhesus macaques infected with simian-immunodeficiency virus (SIV) since 1984. While spontaneous B-cell malignancy in SIV-negative macaques has not been reported, 42 cases of SIV-associated-lymphoma (SAL) have been documented in this cohort. Recently we identified a single case of B-cell leukemia, first suggested by clinical abnormalities and confirmed and further characterized by molecular analysis. The case is important because it models the occurrence of B-cell leukemia in the human AIDS patient and because it extends our understanding of the B-cell lymphoproliferative diseases associated with AIDS.