TY - JOUR
T1 - IL-13 and IFN-γ secretion by activated T cells in HIV-1 infection associated with viral suppression and a lack of disease progression
AU - Bailer, Robert T.
AU - Holloway, Alvy
AU - Sun, Junwei
AU - Margolick, Joseph B.
AU - Martin, Melissa
AU - Kostman, Jay
AU - Montaner, Luis J.
PY - 1999/6/15
Y1 - 1999/6/15
N2 - The immunopathology of HIV-1 infection includes immune defects in T cell cytokine secretion, resulting in decreased Ag-specific responses. In this report, IL-13 and IFN-γ were analyzed in progressive HIV-1 disease. Both cytokines exert positive effects on Ag presentation and inhibit HIV-1 infection of macrophages. Anti-CD3/anti-CD28-activated PBMC from HIV-1- infected individuals (n = 74) compared with uninfected subjects (n = 30) secreted significantly less IL-13 (median, 0.64 ng/ml vs 2.07 ng/ml; p < 0.001) and IFN-γ (median, 40.96 ng/ml vs 129.5 ng/ml; p < 0.005). Decreased IL-13 and IFN-γ secretion in HIV infection was present in sorted CD4+ and CD8+ T cell subsets, and additional analysis determined concurrent deficiency at the protein and transcriptional level. Longitudinal analysis showed that cytokine secretion levels correlated positively with CD4 count and negatively with plasma HIV-1 viral load. Patients changing to suppressive antiretroviral therapy during the study showed increases in IL-13 and IFN-γ secretion. Overall, results show a decline in IL-13 and IFN-γ secretion in progressive HIV-1 infection and suggest a role for both cytokines as part of T cell adaptive responses associated with a lack of disease progression.
AB - The immunopathology of HIV-1 infection includes immune defects in T cell cytokine secretion, resulting in decreased Ag-specific responses. In this report, IL-13 and IFN-γ were analyzed in progressive HIV-1 disease. Both cytokines exert positive effects on Ag presentation and inhibit HIV-1 infection of macrophages. Anti-CD3/anti-CD28-activated PBMC from HIV-1- infected individuals (n = 74) compared with uninfected subjects (n = 30) secreted significantly less IL-13 (median, 0.64 ng/ml vs 2.07 ng/ml; p < 0.001) and IFN-γ (median, 40.96 ng/ml vs 129.5 ng/ml; p < 0.005). Decreased IL-13 and IFN-γ secretion in HIV infection was present in sorted CD4+ and CD8+ T cell subsets, and additional analysis determined concurrent deficiency at the protein and transcriptional level. Longitudinal analysis showed that cytokine secretion levels correlated positively with CD4 count and negatively with plasma HIV-1 viral load. Patients changing to suppressive antiretroviral therapy during the study showed increases in IL-13 and IFN-γ secretion. Overall, results show a decline in IL-13 and IFN-γ secretion in progressive HIV-1 infection and suggest a role for both cytokines as part of T cell adaptive responses associated with a lack of disease progression.
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M3 - Article
C2 - 10358209
AN - SCOPUS:0033564305
SN - 0022-1767
VL - 162
SP - 7534
EP - 7542
JO - Journal of Immunology
JF - Journal of Immunology
IS - 12
ER -