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A computational analysis of transcriptional profiles from CD8(+) T lymphocytes reveals potential mechanisms of HIV/AIDS control and progression

Cytotoxic and noncytotoxic CD8(+) T lymphocyte responses are essential for the control of HIV infection. Understanding the mechanisms underlying HIV control in elite controllers (ECs), which maintain undetectable viral load in the absence of antiretroviral therapy, may facilitate the development of...

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Autores principales: Ivanov, Sergey, Filimonov, Dmitry, Tarasova, Olga
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Research Network of Computational and Structural Biotechnology 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8113781/
https://www.ncbi.nlm.nih.gov/pubmed/34025935
http://dx.doi.org/10.1016/j.csbj.2021.04.056
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author Ivanov, Sergey
Filimonov, Dmitry
Tarasova, Olga
author_facet Ivanov, Sergey
Filimonov, Dmitry
Tarasova, Olga
author_sort Ivanov, Sergey
collection PubMed
description Cytotoxic and noncytotoxic CD8(+) T lymphocyte responses are essential for the control of HIV infection. Understanding the mechanisms underlying HIV control in elite controllers (ECs), which maintain undetectable viral load in the absence of antiretroviral therapy, may facilitate the development of new effective therapeutic strategies. We developed an original pipeline for an analysis of the transcriptional profiles of CD8(+) cells from ECs, treated and untreated progressors. Hierarchical cluster analysis of CD8(+) cells’ transcription profiles allowed us to identify five distinct groups (EC groups 1–5) of ECs. The transcriptional profiles of EC group 1 were opposite to those of groups 2–4 and similar to those of the treated progressors, which can be associated with residual activation and dysfunction of CD8(+) T-lymphocytes. The profiles of groups 2–4 were associated with different numbers of differentially expressed genes compared to healthy controls, but the corresponding genes shared the same cellular processes. These three groups were associated with increased metabolism, survival, proliferation, and the absence of an “exhausted” phenotype, compared to both untreated progressors and healthy controls. The CD8(+) lymphocytes from these groups of ECs may contribute to the control under HIV replication and slower disease progression. The EC group 5 was indistinguishable from normal. Application of master regulator analysis allowed us to identify 22 receptors, including interferon-gamma, interleukin-2, and androgen receptors, which may be responsible for the observed expression changes and the functional states of CD8(+) cells from ECs. These receptors can be considered potential targets of therapeutic intervention, which may decelerate disease progression.
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spelling pubmed-81137812021-05-21 A computational analysis of transcriptional profiles from CD8(+) T lymphocytes reveals potential mechanisms of HIV/AIDS control and progression Ivanov, Sergey Filimonov, Dmitry Tarasova, Olga Comput Struct Biotechnol J Research Article Cytotoxic and noncytotoxic CD8(+) T lymphocyte responses are essential for the control of HIV infection. Understanding the mechanisms underlying HIV control in elite controllers (ECs), which maintain undetectable viral load in the absence of antiretroviral therapy, may facilitate the development of new effective therapeutic strategies. We developed an original pipeline for an analysis of the transcriptional profiles of CD8(+) cells from ECs, treated and untreated progressors. Hierarchical cluster analysis of CD8(+) cells’ transcription profiles allowed us to identify five distinct groups (EC groups 1–5) of ECs. The transcriptional profiles of EC group 1 were opposite to those of groups 2–4 and similar to those of the treated progressors, which can be associated with residual activation and dysfunction of CD8(+) T-lymphocytes. The profiles of groups 2–4 were associated with different numbers of differentially expressed genes compared to healthy controls, but the corresponding genes shared the same cellular processes. These three groups were associated with increased metabolism, survival, proliferation, and the absence of an “exhausted” phenotype, compared to both untreated progressors and healthy controls. The CD8(+) lymphocytes from these groups of ECs may contribute to the control under HIV replication and slower disease progression. The EC group 5 was indistinguishable from normal. Application of master regulator analysis allowed us to identify 22 receptors, including interferon-gamma, interleukin-2, and androgen receptors, which may be responsible for the observed expression changes and the functional states of CD8(+) cells from ECs. These receptors can be considered potential targets of therapeutic intervention, which may decelerate disease progression. Research Network of Computational and Structural Biotechnology 2021-04-25 /pmc/articles/PMC8113781/ /pubmed/34025935 http://dx.doi.org/10.1016/j.csbj.2021.04.056 Text en © 2021 The Authors https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Research Article
Ivanov, Sergey
Filimonov, Dmitry
Tarasova, Olga
A computational analysis of transcriptional profiles from CD8(+) T lymphocytes reveals potential mechanisms of HIV/AIDS control and progression
title A computational analysis of transcriptional profiles from CD8(+) T lymphocytes reveals potential mechanisms of HIV/AIDS control and progression
title_full A computational analysis of transcriptional profiles from CD8(+) T lymphocytes reveals potential mechanisms of HIV/AIDS control and progression
title_fullStr A computational analysis of transcriptional profiles from CD8(+) T lymphocytes reveals potential mechanisms of HIV/AIDS control and progression
title_full_unstemmed A computational analysis of transcriptional profiles from CD8(+) T lymphocytes reveals potential mechanisms of HIV/AIDS control and progression
title_short A computational analysis of transcriptional profiles from CD8(+) T lymphocytes reveals potential mechanisms of HIV/AIDS control and progression
title_sort computational analysis of transcriptional profiles from cd8(+) t lymphocytes reveals potential mechanisms of hiv/aids control and progression
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8113781/
https://www.ncbi.nlm.nih.gov/pubmed/34025935
http://dx.doi.org/10.1016/j.csbj.2021.04.056
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