scholarly journals Responsiveness of T Cells to Interleukin‐7 Is Associated with Higher CD4+T Cell Counts in HIV‐1–Positive Individuals with Highly Active Antiretroviral Therapy–Induced Viral Load Suppression

2009 ◽  
Vol 199 (12) ◽  
pp. 1872-1882 ◽  
Author(s):  
Jose F. Camargo ◽  
Hemant Kulkarni ◽  
Brian K. Agan ◽  
Alvaro A. Gaitan ◽  
Lisa A. Beachy ◽  
...  
Keyword(s):  
T Cells ◽  
Viral Load ◽  
Antiretroviral Therapy ◽  
Highly Active Antiretroviral Therapy ◽  
Cd4 T Cell ◽  
Viral Load Suppression ◽  
Interleukin 7 ◽  
Highly Active ◽  
Cell Counts ◽  
Hiv 1

scholarly journals Reconstitution of Peripheral T Cells by Tissue-Derived CCR4+ Central Memory Cells Following HIV-1 Antiretroviral Therapy

2016 ◽  
Vol 1 (2) ◽  
pp. 260 ◽  
Author(s):  
Yolanda D. Mahnke ◽  
Kipper Fletez-Brant ◽  
Irini Sereti ◽  
Mario Roederer
Keyword(s):  
T Cells ◽  
Viral Load ◽  
T Cell ◽  
Antiretroviral Therapy ◽  
Cd8 T Cells ◽  
Plasma Viral Load ◽  
Cd4 T Cell ◽  
Cell Numbers ◽  
Cell Counts ◽  
Hiv 1

Background. Highly active antiretroviral therapy induces clinical benefits to HIV-1 infected individuals, which can be striking in those with progressive disease. Improved survival and decreased incidence of opportunistic infections go hand in hand with a suppression of the plasma viral load, an increase in peripheral CD4+ T-cell counts, as well as a reduction in the activation status of both CD4+ and CD8+ T cells.Methods. We investigated T-cell dynamics during ART by polychromatic flow cytometry in total as well as in HIV-1-specific CD4+ and CD8+ T cells. We also measured gene expression by single cell transcriptomics to assess functional state.Results. The cytokine pattern of HIV-specific CD8+ T cells was not altered after ART, though their magnitude decreased significantly as the plasma viral load was suppressed to undetectable levels. Importantly, while CD4+ T cell numbers increased substantially during the first year, the population did not normalize: the increases were largely due to expansion of mucosal-derived CCR4+ CD4+ TCM; transcriptomic analysis revealed that these are not classical Th2-type cells.Conclusion. The apparent long-term normalization of CD4+ T-cell numbers following ART does not comprise a normal balance of functionally distinct cells, but results in a dramatic Th2 shift of the reconstituting immune system.

scholarly journals The effect of tuberculosis on immune reconstitution among HIV patients on highly active antiretroviral therapy in Adigrat general hospital, eastern Tigrai, Ethiopia; 2019: a retrospective follow up study

2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Hadush Negash ◽  
Haftom Legese ◽  
Mebrahtu Tefera ◽  
Fitsum Mardu ◽  
Kebede Tesfay ◽  
...  
Keyword(s):  
T Cells ◽  
T Cell ◽  
Antiretroviral Therapy ◽  
Highly Active Antiretroviral Therapy ◽  
Cd4 T Cells ◽  
Immune Reconstitution ◽  
Cd4 T Cell ◽  
Highly Active ◽  
Cell Counts

Abstract Background Ethiopia initiated antiretroviral therapy early in 2005. Managing and detecting antiretroviral treatment response is important to monitor the effectiveness of medication and possible drug switching for low immune reconstitution. There is less recovery of CD4+ T cells among human immunodeficiency virus patients infected with tuberculosis. Hence, we aimed to assess the effect of tuberculosis and other determinant factors of immunological response among human immunodeficiency virus patients on highly active antiretroviral therapy. A retrospective follow up study was conducted from October to July 2019. A total of 393 participants were enrolled. An interviewer based questionnaire was used for data collection. Patient charts were used to extract clinical data and follow up results of the CD4+ T cell. Current CD4+ T cell counts of patients were performed. STATA 13 software was used to analyze the data. A p-value ≤0.05 was considered a statistically significant association. Results The mean age of study participants was 39.2 years (SD: + 12.2 years) with 8.32 mean years of follow up. The overall prevalence of immune reconstitution failure was 24.7% (97/393). Highest failure rate occurred within the first year of follow up time, 15.7 per 100 Person-year. Failure of CD4+ T cells reconstitution was higher among tuberculosis coinfected patients (48.8%) than mono-infected patients (13.7%). Living in an urban residence, baseline CD4+ T cell count ≤250 cells/mm3, poor treatment adherence and tuberculosis infection were significantly associated with the immunological failure. Conclusions There was a high rate of CD4+ T cells reconstitution failure among our study participants. Tuberculosis infection increased the rate of failure. Factors like low CD4+ T cell baseline count, poor adherence and urban residence were associated with the immunological failure. There should be strict monitoring of CD4+ T cell counts among individuals with tuberculosis coinfection.

scholarly journals CD4+ T-Cell Counts and Plasma HIV-1 RNA Levels Beyond 5 Years of Highly Active Antiretroviral Therapy

2011 ◽  
Vol 57 (5) ◽  
pp. 421-428 ◽  
Author(s):  
Xiuhong Li ◽  
Joseph B Margolick ◽  
Beth D Jamieson ◽  
Charles R Rinaldo ◽  
John P Phair ◽  
...  
Keyword(s):  
T Cell ◽  
Antiretroviral Therapy ◽  
Highly Active Antiretroviral Therapy ◽  
Cd4 T Cell ◽  
Highly Active ◽  
Cell Counts ◽  
Hiv 1 ◽  
Rna Levels

scholarly journals Antigen-driven CD4+ T cell and HIV-1 dynamics: Residual viral replication under highly active antiretroviral therapy

1999 ◽  
Vol 96 (26) ◽  
pp. 15167-15172 ◽  
Author(s):  
N. M. Ferguson ◽  
F. deWolf ◽  
A. C. Ghani ◽  
C. Fraser ◽  
C. A. Donnelly ◽  
...  
Keyword(s):  
T Cell ◽  
Antiretroviral Therapy ◽  
Viral Replication ◽  
Highly Active Antiretroviral Therapy ◽  
Cd4 T Cell ◽  
Highly Active ◽  
Hiv 1

Proviral HIV-1 DNA in subjects followed since primary HIV-1 infection who suppress plasma viral load after one year of highly active antiretroviral therapy

AIDS ◽  
2001 ◽  
Vol 15 (6) ◽  
pp. 665-673 ◽  
Author(s):  
Nicole Ngo-Giang-Huong ◽  
Christiane Deveau ◽  
Isabelle Da Silva ◽  
Isabelle Pellegrin ◽  
Alain Venet ◽  
...  
Keyword(s):  
Viral Load ◽  
Antiretroviral Therapy ◽  
Highly Active Antiretroviral Therapy ◽  
Plasma Viral Load ◽  
Highly Active ◽  
One Year ◽  
Hiv 1

scholarly journals Interleukin-7 levels before highly active antiretroviral therapy may predict CD4+ T-cell recovery and virological failure in HIV-infected children

2006 ◽  
Vol 57 (4) ◽  
pp. 798-800 ◽  
Author(s):  
Salvador Resino ◽  
Alicia Pérez ◽  
Juan Antonio León ◽  
Mª Dolores Gurbindo ◽  
Mª Ángeles Muñoz-Fernández
Keyword(s):  
T Cell ◽  
Antiretroviral Therapy ◽  
Virological Failure ◽  
Highly Active Antiretroviral Therapy ◽  
Cd4 T Cell ◽  
Cell Recovery ◽  
Interleukin 7 ◽  
Highly Active

scholarly journals Persistence of Genital Tract T Cell Responses in HIV-Infected Women on Highly Active Antiretroviral Therapy

2010 ◽  
Vol 84 (20) ◽  
pp. 10765-10772 ◽  
Author(s):  
Nonhlanhla N. Mkhize ◽  
Pamela P. Gumbi ◽  
Lenine J. Liebenberg ◽  
Yuan Ren ◽  
Peter Smith ◽  
...  
Keyword(s):  
T Cell ◽  
Antiretroviral Therapy ◽  
Highly Active Antiretroviral Therapy ◽  
Genital Tract ◽  
T Cell Responses ◽  
Antiretroviral Drugs ◽  
Cd4 T Cell ◽  
Cell Responses ◽  
Highly Active ◽  
Cell Counts

ABSTRACT Initiation of highly active antiretroviral therapy (HAART) for HIV-infected individuals is associated with control of viremia, improved CD4 counts, and declining systemic HIV-specific immune responses. While HAART effectively reduces plasma viremia, it remains unclear how effectively antiretroviral drugs reach mucosal surfaces, such as those of the genital tract. The aim of this study was to determine the effect of HAART on genital tract CD4 T cell reconstitution, HIV shedding, and HIV-specific T cell responses. Cervical cytobrush and blood specimens were obtained from 35 HIV-infected, HAART-naïve women and 27 women on HAART in order to investigate HIV Gag-specific T cell responses by intracellular gamma interferon (IFN-γ) staining. Interleukin 1β (IL-1β), IL-6, and IL-8 concentrations were measured by enzyme-linked immunosorbent assays (ELISA). We show that for HIV-infected women, HAART is associated with significantly improved CD4 T cell counts both in blood and at the cervix. While HAART effectively suppressed both blood and cervical viremia, HIV-specific CD8 T cell responses in blood were lost, while those at the cervix were preserved.

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