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Reduction in terminally differentiated T cells in virologically controlled HIV-infected aging patients on long-term antiretroviral therapy
Several studies have shown an increased accumulation of terminally differentiated T cells during HIV infection, suggestive of exhaustion/senescence, causing dysregulation of T cell homeostasis and function and rapid HIV disease progression. We have investigated whether long-term antiretroviral thera...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5999291/ https://www.ncbi.nlm.nih.gov/pubmed/29897981 http://dx.doi.org/10.1371/journal.pone.0199101 |
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author | Behrens, Nicole E. Wertheimer, Anne Klotz, Stephen A. Ahmad, Nafees |
author_facet | Behrens, Nicole E. Wertheimer, Anne Klotz, Stephen A. Ahmad, Nafees |
author_sort | Behrens, Nicole E. |
collection | PubMed |
description | Several studies have shown an increased accumulation of terminally differentiated T cells during HIV infection, suggestive of exhaustion/senescence, causing dysregulation of T cell homeostasis and function and rapid HIV disease progression. We have investigated whether long-term antiretroviral therapy (ART), which controls viremia and restores CD4 T cell counts, is correlated with reduction in terminally differentiated T cells, improved ratios of naïve to memory and function of T cells in 100 virologically controlled HIV-infected patients. We show that while the median frequencies of terminally differentiated CD4(+) and CD8(+) T cells (CD28(-), CD27(-), CD57(+) and CD28(-)CD57(+)), were higher in the virologically controlled HIV-infected patients’ cohort compared with uninfected individuals’ cohort, the frequencies of these cells significantly decreased with increasing CD4 T cell counts in HIV-infected patients. Although, the naïve CD4(+) and CD8(+) T cells were lower in HIV patients’ cohort than uninfected cohort, there was a significant increase in both naïve CD4(+) and CD8(+) T cells with increasing CD4 T cell counts in HIV-infected patients. The underlying mechanism behind this increased naïve CD4(+) and CD8(+) T cells in HIV-infected patients was due to an increase in recent thymic emigrants, CD4(+)CD31(+), as compared to CD4(+)CD31(-). The CD4(+) T cells of HIV-infected patients produced cytokines, including IL-2, IL-10 and IFN-γ comparable to uninfected individuals. In conclusion, virologically controlled HIV-infected patients on long-term ART show a significant reduction in terminally differentiated T cells, suggestive of decreased exhaustion/senescence, and improvement in the ratios of naïve to memory and function of T cells. |
format | Online Article Text |
id | pubmed-5999291 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-59992912018-06-21 Reduction in terminally differentiated T cells in virologically controlled HIV-infected aging patients on long-term antiretroviral therapy Behrens, Nicole E. Wertheimer, Anne Klotz, Stephen A. Ahmad, Nafees PLoS One Research Article Several studies have shown an increased accumulation of terminally differentiated T cells during HIV infection, suggestive of exhaustion/senescence, causing dysregulation of T cell homeostasis and function and rapid HIV disease progression. We have investigated whether long-term antiretroviral therapy (ART), which controls viremia and restores CD4 T cell counts, is correlated with reduction in terminally differentiated T cells, improved ratios of naïve to memory and function of T cells in 100 virologically controlled HIV-infected patients. We show that while the median frequencies of terminally differentiated CD4(+) and CD8(+) T cells (CD28(-), CD27(-), CD57(+) and CD28(-)CD57(+)), were higher in the virologically controlled HIV-infected patients’ cohort compared with uninfected individuals’ cohort, the frequencies of these cells significantly decreased with increasing CD4 T cell counts in HIV-infected patients. Although, the naïve CD4(+) and CD8(+) T cells were lower in HIV patients’ cohort than uninfected cohort, there was a significant increase in both naïve CD4(+) and CD8(+) T cells with increasing CD4 T cell counts in HIV-infected patients. The underlying mechanism behind this increased naïve CD4(+) and CD8(+) T cells in HIV-infected patients was due to an increase in recent thymic emigrants, CD4(+)CD31(+), as compared to CD4(+)CD31(-). The CD4(+) T cells of HIV-infected patients produced cytokines, including IL-2, IL-10 and IFN-γ comparable to uninfected individuals. In conclusion, virologically controlled HIV-infected patients on long-term ART show a significant reduction in terminally differentiated T cells, suggestive of decreased exhaustion/senescence, and improvement in the ratios of naïve to memory and function of T cells. Public Library of Science 2018-06-13 /pmc/articles/PMC5999291/ /pubmed/29897981 http://dx.doi.org/10.1371/journal.pone.0199101 Text en © 2018 Behrens et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Behrens, Nicole E. Wertheimer, Anne Klotz, Stephen A. Ahmad, Nafees Reduction in terminally differentiated T cells in virologically controlled HIV-infected aging patients on long-term antiretroviral therapy |
title | Reduction in terminally differentiated T cells in virologically controlled HIV-infected aging patients on long-term antiretroviral therapy |
title_full | Reduction in terminally differentiated T cells in virologically controlled HIV-infected aging patients on long-term antiretroviral therapy |
title_fullStr | Reduction in terminally differentiated T cells in virologically controlled HIV-infected aging patients on long-term antiretroviral therapy |
title_full_unstemmed | Reduction in terminally differentiated T cells in virologically controlled HIV-infected aging patients on long-term antiretroviral therapy |
title_short | Reduction in terminally differentiated T cells in virologically controlled HIV-infected aging patients on long-term antiretroviral therapy |
title_sort | reduction in terminally differentiated t cells in virologically controlled hiv-infected aging patients on long-term antiretroviral therapy |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5999291/ https://www.ncbi.nlm.nih.gov/pubmed/29897981 http://dx.doi.org/10.1371/journal.pone.0199101 |
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