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Open Access Subsets of T Cells in Healthy Rhesus Macaques (Macaca mulatta) Infected with Simian T-Lymphotropic Virus Type 1

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Simian T-lymphotropic virus type 1 (STLV-1) is a C-type retrovirus of nonhuman primates that is genetically and antigenically related to human T-lymphotropic virus type 1 (HTLV-1). Infection with STLV-1 has been reported in many species of Old World monkeys and apes, including rhesus macaques (Macaca mulatta). Similar to HTLV infection in humans, STLV infection has been associated with T-cell lymphoproliferative disease or lymphoma in a small proportion of infected animals, predominantly African species. There are conflicting reports of T-cell subset alterations in healthy HTLV-1 carriers. To the authors' knowledge, analysis of T-cell subsets in healthy STLV-1 carrier rhesus macaques has not been reported. Subsets of T cells in peripheral blood from healthy, STLV-1-seropositive rhesus macaques (n = 17) and seronegative controls matched for age and sex (n = 17) were determined by use of fluorescence-activated cell sorter analysis. Parameters measured included CD3, CD4, CD8, CD25, CD28, CD38, and HLA-DR cell sets. Significant differences in T-cell subsets or hematologic parameters were not observed between healthy STLV-seropositive and seronegative groups.

Document Type: Research Article

Affiliations: California National Primate Research Center, University of California, Davis 95616

Publication date: 2004-06-01

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  • Comparative Medicine (CM), an international journal of comparative and experimental medicine, is the leading English-language publication in the field and is ranked by the Science Citation Index in the upper third of all scientific journals. The mission of CM is to disseminate high-quality, peer-reviewed information that expands biomedical knowledge and promotes human and animal health through the study of laboratory animal disease, animal models of disease, and basic biologic mechanisms related to disease in people and animals.

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