Cellerai, C;
Harari, A;
Stauss, H;
Yerly, S;
Geretti, AM;
Carroll, A;
Yee, T;
... Kinloch-de Loes, S; + view all
(2011)
Early and Prolonged Antiretroviral Therapy Is Associated with an HIV-1-Specific T-Cell Profile Comparable to That of Long-Term Non-Progressors.
PLOS ONE
, 6
(4)
, Article e18164. 10.1371/journal.pone.0018164.
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Abstract
Background: Intervention with antiretroviral treatment (ART) and control of viral replication at the time of HIV-1 seroconversion may curtail cumulative immunological damage. We have therefore hypothesized that ART maintenance over a very prolonged period in HIV-1 seroconverters could induce an immuno-virological status similar to that of HIV-1 long-term non-progressors (LTNPs).Methodology/Principal Findings: We have investigated a cohort of 20 HIV-1 seroconverters on long-term ART (LTTS) and compared it to one of 15 LTNPs. Residual viral replication and reservoirs in peripheral blood, as measured by cell-associated HIV-1 RNA and DNA, respectively, were demonstrated to be similarly low in both cohorts. These two virologically matched cohorts were then comprehensively analysed by polychromatic flow cytometry for HIV-1-specific CD4(+) and CD8(+) T-cell functional profile in terms of cytokine production and cytotoxic capacity using IFN-gamma, IL-2, TNF-alpha production and perforin expression, respectively. Comparable levels of highly polyfunctional HIV-1-specific CD4(+) and CD8(+) T-cells were found in LTTS and LTNPs, with low perforin expression on HIV-1-specific CD8+ T-cells, consistent with a polyfunctional/non-cytotoxic profile in a context of low viral burden.Conclusions: Our results indicate that prolonged ART initiated at the time of HIV-1 seroconversion is associated with immuno-virological features which resemble those of LTNPs, strengthening the recent emphasis on the positive impact of early treatment initiation and paving the way for further interventions to promote virological control after treatment interruption.
| Type: | Article |
|---|---|
| Title: | Early and Prolonged Antiretroviral Therapy Is Associated with an HIV-1-Specific T-Cell Profile Comparable to That of Long-Term Non-Progressors |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1371/journal.pone.0018164 |
| Publisher version: | http://dx.doi.org/10.1371/journal.pone.0018164 |
| Language: | English |
| Additional information: | © 2011 Cellerai et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
| Keywords: | ACUTE HIV-1 INFECTION, IMMUNODEFICIENCY-VIRUS-REPLICATION, STRUCTURED TREATMENT INTERRUPTIONS, IMMUNE CONTROL, PERFORIN EXPRESSION, VIRAL CONTROL, HIV-1-INFECTED SUBJECTS, FUNCTIONAL SIGNATURES, MEDIATED CYTOTOXICITY, HLA-B |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Infection and Immunity |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1365011 |
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