Abstract
The study of clinical and demographic characteristics related to virus control and disease progression in patients who spontaneously control HIV vireamia (HIV-controllers) is of major interest. A particular cause of HIV control has not been found and the scenario could be partially explained by special homeostatic and immunological features. In this study, CD57+CD28- phenotype, T-cell activation and levels of proliferating T-cells in elite-controllers were studied in relation to spontaneous virus control. In HIV-controllers, 9% were AIDS-diagnosed and there was a high proportion of women. In elite-controllers, high T-cell CD57+CD28- phenotype and activation levels were found and, interestingly, there was a low proliferation of total and naive T-cells and a high proliferation of the CD4+ TEMRA subset. Low T-cell proliferation and preferential expansion of terminally differentiated effector T-cell subsets could be an important factor for virus control in elite-controllers.
Keywords: HIV, elite-controllers, immunosenescence, activation, CD57+, proliferation, TEMRA
Current HIV Research
Title: High Levels of CD57+CD28- T-Cells, Low T-Cell Proliferation and Preferential Expansion of Terminally Differentiated CD4+ T-Cells in HIVElite Controllers
Volume: 8 Issue: 6
Author(s): Ezequiel Ruiz-Mateos, Sara Ferrando-Martinez, Kawthar Machmach, Pompeyo Viciana, Yolanda M. Pacheco, Nieves Nogales, Miguel Genebat and Manuel Leal
Affiliation:
Keywords: HIV, elite-controllers, immunosenescence, activation, CD57+, proliferation, TEMRA
Abstract: The study of clinical and demographic characteristics related to virus control and disease progression in patients who spontaneously control HIV vireamia (HIV-controllers) is of major interest. A particular cause of HIV control has not been found and the scenario could be partially explained by special homeostatic and immunological features. In this study, CD57+CD28- phenotype, T-cell activation and levels of proliferating T-cells in elite-controllers were studied in relation to spontaneous virus control. In HIV-controllers, 9% were AIDS-diagnosed and there was a high proportion of women. In elite-controllers, high T-cell CD57+CD28- phenotype and activation levels were found and, interestingly, there was a low proliferation of total and naive T-cells and a high proliferation of the CD4+ TEMRA subset. Low T-cell proliferation and preferential expansion of terminally differentiated effector T-cell subsets could be an important factor for virus control in elite-controllers.
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Ruiz-Mateos Ezequiel, Ferrando-Martinez Sara, Machmach Kawthar, Viciana Pompeyo, Pacheco M. Yolanda, Nogales Nieves, Genebat Miguel and Leal Manuel, High Levels of CD57+CD28- T-Cells, Low T-Cell Proliferation and Preferential Expansion of Terminally Differentiated CD4+ T-Cells in HIVElite Controllers, Current HIV Research 2010; 8 (6) . https://dx.doi.org/10.2174/157016210793499268
DOI https://dx.doi.org/10.2174/157016210793499268 |
Print ISSN 1570-162X |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4251 |
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