scholarly journals Inconsistent Reconstitution of Cytomegalovirus‐Specific Cell‐Mediated Immunity in Human Immunodeficiency Virus–Infected Patients Receiving Highly Active Antiretroviral Therapy

2001 ◽  
Vol 184 (6) ◽  
pp. 707-712 ◽  
Author(s):  
Adriana Weinberg ◽  
David A. Wohl ◽  
Rachel J. Barrett ◽  
Charles van der Horst
Keyword(s):  
Human Immunodeficiency Virus ◽  
Antiretroviral Therapy ◽  
Highly Active Antiretroviral Therapy ◽  
Cell Mediated Immunity ◽  
Specific Cell ◽  
Highly Active ◽  
Immunodeficiency Virus

scholarly journals Immunity to Human Immunodeficiency Virus (HIV) in Children with Chronic HIV Infection Receiving Highly Active Antiretroviral Therapy

2003 ◽  
Vol 10 (5) ◽  
pp. 821-825 ◽  
Author(s):  
Adriana Weinberg ◽  
Gregory B. Pott
Keyword(s):  
Human Immunodeficiency Virus ◽  
Antiretroviral Therapy ◽  
Hiv Infection ◽  
Highly Active Antiretroviral Therapy ◽  
Lymphocyte Proliferation ◽  
Specific Cell ◽  
Highly Active ◽  
Immunodeficiency Virus ◽  
Ifn Γ ◽  
Chronic Hiv Infection

ABSTRACT Our objective was to describe the CD4-mediated human immunodeficiency virus (HIV)-specific cell-mediated immunity (CMI) and its virologic and immunologic correlates in children with chronic HIV infection on highly active antiretroviral therapy (HAART). Twelve HIV-infected children on stable antiretroviral therapy with a median level of CD4+ lymphocytes (CD4%) of 25.5% and a median viral load (VL) of 786 HIV RNA copies/ml were enrolled in this study. Nine of these children were also cytomegalovirus (CMV) seropositive. Blood mononuclear cells, stimulated with HIV and CMV antigens, were used to measure lymphocyte proliferation and to enumerate gamma interferon (IFN-γ)-producing CD4+ cells. HIV CMI and CMV CMI were detected in similar proportions of patients and correlated with each other, although the HIV responses were less robust. HIV lymphocyte proliferation significantly increased with lower HIV VL and showed a trend to increase with higher CD4% and longer time on HAART. The in vitro IFN-γ response to HIV or CMV was not affected by CD4%, VL, or HAART. Pediatric patients with established HIV infection on HAART frequently exhibit HIV CMI despite undetectable HIV replication. We concluded that the association between HIV CMI and CMV CMI indicates that the same factors govern responsiveness to either antigen.

scholarly journals Highly Active Antiretroviral Therapy Normalizes the Function of Progenitor Cells in Human Immunodeficiency Virus–Infected Patients

1998 ◽  
Vol 178 (5) ◽  
pp. 1299-1305 ◽  
Author(s):  
Susanne Dam Nielsen ◽  
Annette Kjær Ersbøll ◽  
Lars Mathiesen ◽  
Jens Ole Nielsen ◽  
John‐Erik Stig Hansen
Keyword(s):  
Human Immunodeficiency Virus ◽  
Antiretroviral Therapy ◽  
Progenitor Cells ◽  
Highly Active Antiretroviral Therapy ◽  
Highly Active ◽  
Immunodeficiency Virus

scholarly journals Highly Active Antiretroviral Therapy in Human Immunodeficiency Virus Type 1-Infected Children: Analysis of Cellular Immune Responses

2001 ◽  
Vol 8 (5) ◽  
pp. 943-948 ◽  
Author(s):  
Vesna Blazevic ◽  
Shirley Jankelevich ◽  
Seth M. Steinberg ◽  
Freda Jacobsen ◽  
Robert Yarchoan ◽  
...  
Keyword(s):  
Human Immunodeficiency Virus ◽  
T Cell ◽  
Antiretroviral Therapy ◽  
Highly Active Antiretroviral Therapy ◽  
Delayed Type Hypersensitivity ◽  
Strong Increase ◽  
Highly Active ◽  
Cell Counts ◽  
Immunodeficiency Virus

ABSTRACT The present study analyzes the effect of highly active antiretroviral therapy (HAART) on restoration of cellular immunity in human immunodeficiency virus (HIV)-infected children over a 24-week period following initiation of HAART with ritonavir, nevirapine, and stavudine. The immunological parameters evaluated at four time points (at enrollment and at 4, 12, and 24 weeks of therapy) included cytokine production by monocytes as well as T-cell proliferation in response to mitogen, alloantigen, and recall antigens including HIV type 1 envelope peptides. Circulating levels of interleukin-16 (IL-16) were measured, in addition to CD4+ T-cell counts, plasma HIV RNA levels, and the delayed-type hypersensitivity (DTH) response. At enrollment the children exhibited defects in several immune parameters measured. Therapy increased CD4+ T-cell counts and decreased viral loads significantly. By contrast, the only immunological parameter that was significantly increased was IL-12 p70 production by monocytes; the DTH response to Candida albicans also showed a strong increase in patients becoming positive. In conclusion, these results demonstrate that HAART in HIV-infected children affects the dynamics of HIV replication and the CD4+ T-cell count over 24 weeks, similar to the pattern seen in HIV-infected adults. Furthermore, these data indicate improvement in antigen-presenting cell immunological function in HIV-infected children induced by HAART.

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