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Abel Ureta-Vidal, Claudine Pique, Zacarias Garcia, Axelle Dehée, Patricia Tortevoye, Nathalie Désiré, Antoine Gessain, Bruno Chancerel, Olivier Gout, François A. Lemonnier, Madeleine Cochet, Human T Cell Leukemia Virus Type I (HTLV-I) Infection Induces Greater Expansions of CD8 T Lymphocytes in Persons with HTLV-I–Associated Myelopathy/Tropical Spastic Paraparesis than in Asymptomatic Carriers, The Journal of Infectious Diseases, Volume 183, Issue 6, 15 March 2001, Pages 857–864, https://doi.org/10.1086/319264
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Abstract
A quantitative study of the T cell receptor repertoire was performed ex vivo on CD4 and CD8 T cell subsets of human T cell leukemia virus type I (HTLV-I)–infected asymptomatic carriers and patients with HTLV-I–associated myelopathy/tropical spastic paraparesis (HAM/TSP). Indexes of oligoclonality that compiled all repertoire modifications were calculated for peripheral blood mononuclear cells and for CD4 and CD8 T cell subsets. Both patients with HAM/TSP and asymptomatic carriers had greater T lymphocyte expansions than did uninfected donors, which was independent of age and at least twice higher in the CD8 than in the CD4 cell compartment. Some expanded CD8 T cells corresponded to cytotoxic T lymphocytes directed against various epitopes of the immunodominant Tax protein. Patients with HAM/TSP had significantly higher CD8 cell expansions than did asymptomatic carriers. These results highlight the prognostic value of measuring CD8 T cell expansions during follow-up of HTLV-I infection
- bone marrow diseases
- carrier state
- cd8-positive t-lymphocytes
- epitopes
- gene products, tax
- htlv-i infections
- human t-lymphotropic virus 1
- tropical spastic paraparesis
- spinal cord diseases
- t-lymphocyte subsets
- t-lymphocytes
- infections
- t-cell leukemia viruses, human
- peripheral blood mononuclear cell
- donors