T cell subset distribution in HIV-1 infected patients after 12 years of treatment induced viraemic suppression
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T cell subset distribution in HIV-1 infected patients after 12 years of treatment induced viraemic suppression. / Rönsholt, Frederikke F; Ullum, Henrik; Katzenstein, Terese L; Gerstoft, Jan; Ostrowski, Sisse R.
In: J A I D S, Vol. 61, No. 3, 2012, p. 270-78.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - T cell subset distribution in HIV-1 infected patients after 12 years of treatment induced viraemic suppression
AU - Rönsholt, Frederikke F
AU - Ullum, Henrik
AU - Katzenstein, Terese L
AU - Gerstoft, Jan
AU - Ostrowski, Sisse R
PY - 2012
Y1 - 2012
N2 - OBJECTIVE:: Residual immune activation and skewed T cell maturation may contribute to excess comorbidity and mortality in successfully treated HIV infected patients and long term effects of combination antiretroviral therapy (cART) on immune reconstitution remain a debated issue. We investigated quantitative T cell reconstitution and activation and its association to residual viraemia in patients with 12 years of viraemic suppression. DESIGN:: Blood samples collected cross-sectionally from 71 HIV infected patients with cART induced viraemic suppression through 12 years were compared to samples from 16 healthy controls. METHODS:: Several different subsets of naïve, memory and activated T cells were analyzed in fresh whole blood by 6-color flowcytometry and ultra sensitive quantification of HIV RNA was performed. RESULTS:: HIV-infected patients (HIV+) had lower absolute and relative CD4 T cell counts and higher absolute and relative CD8 T cell counts than controls. HIV+ had lower concentrations of naïve CD4 cells than controls, but proportions were similar. HIV+ had higher concentrations of CD8+ T cells than controls in all of the examined subsets, but only a higher proportion of CD8+ cells in the intermediately differentiated and activated subsets. Residual viraemia did not correlate to proportions of naïve CD4, CD4 RTEs, or activated CD8 T cells. CONCLUSIONS:: This study demonstrated some degree of T cell imbalance even after 12 years of successful cART. Large longitudinal studies are needed to establish whether or not these discrete changes have clinical relevance.
AB - OBJECTIVE:: Residual immune activation and skewed T cell maturation may contribute to excess comorbidity and mortality in successfully treated HIV infected patients and long term effects of combination antiretroviral therapy (cART) on immune reconstitution remain a debated issue. We investigated quantitative T cell reconstitution and activation and its association to residual viraemia in patients with 12 years of viraemic suppression. DESIGN:: Blood samples collected cross-sectionally from 71 HIV infected patients with cART induced viraemic suppression through 12 years were compared to samples from 16 healthy controls. METHODS:: Several different subsets of naïve, memory and activated T cells were analyzed in fresh whole blood by 6-color flowcytometry and ultra sensitive quantification of HIV RNA was performed. RESULTS:: HIV-infected patients (HIV+) had lower absolute and relative CD4 T cell counts and higher absolute and relative CD8 T cell counts than controls. HIV+ had lower concentrations of naïve CD4 cells than controls, but proportions were similar. HIV+ had higher concentrations of CD8+ T cells than controls in all of the examined subsets, but only a higher proportion of CD8+ cells in the intermediately differentiated and activated subsets. Residual viraemia did not correlate to proportions of naïve CD4, CD4 RTEs, or activated CD8 T cells. CONCLUSIONS:: This study demonstrated some degree of T cell imbalance even after 12 years of successful cART. Large longitudinal studies are needed to establish whether or not these discrete changes have clinical relevance.
U2 - 10.1097/QAI.0b013e31825e7ac1
DO - 10.1097/QAI.0b013e31825e7ac1
M3 - Journal article
C2 - 22614900
VL - 61
SP - 270
EP - 278
JO - J A I D S
JF - J A I D S
SN - 1525-4135
IS - 3
ER -
ID: 48451900