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Precise Quantitation of the Latent HIV-1 Reservoir: Implications for Eradication Strategies.
- Source :
-
Journal of Infectious Diseases . 11/1/2015, Vol. 212 Issue 9, p1361-1365. 5p. - Publication Year :
- 2015
-
Abstract
- The quantitative viral outgrowth assay (QVOA) provides a precise minimal estimate of the reservoir of resting CD4(+) T-cell infection (resting cell infection [RCI]). However, the variability of RCI over time during antiretroviral therapy (ART), relevant to assess potential effects of latency-reversing agents or other interventions, has not been fully described. We performed QVOA on resting CD4(+) T cells obtained via leukapheresis from 37 human immunodeficiency virus (HIV)-infected patients receiving stable suppressive ART for a period of 6 years. Patients who started ART during acute (n = 17) or chronic (n = 20) HIV infection were studied once HIV RNA levels were <50 copies/mL for ≥ 6 months. Using random effects analysis of 160 RCI measurements, we found that RCI declined significantly over time (P < .001), with an estimated mean half-life of 3.6 years (95% confidence interval, 2.3-8.1 years), remarkably consistent with findings of prior studies. There was no evidence of more rapid decay in acute versus chronic HIV infection (P = .99) for patients suppressed ≥ 6 months. RCI was reliably estimated with longitudinal measurements generally showing < 2-fold variation from the previous measure. When QVOA is performed in this format, RCI decreases of >6-fold were rare. We suggest that a 6-fold decline is a relevant threshold to reliably identify effects of antilatency interventions on RCI. [ABSTRACT FROM AUTHOR]
- Subjects :
- *HIV infections
*ANTIRETROVIRAL agents
*LEUKAPHERESIS
*ESTIMATION theory
*LONGITUDINAL method
*MEDICAL research
*ANTI-HIV agents
*CHRONIC diseases
*HIV
*RESEARCH funding
*T cells
*VIRAL physiology
*EVALUATION research
*HIGHLY active antiretroviral therapy
*VIREMIA
*ACUTE diseases
*PHYSIOLOGY
RESEARCH evaluation
Subjects
Details
- Language :
- English
- ISSN :
- 00221899
- Volume :
- 212
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Journal of Infectious Diseases
- Publication Type :
- Academic Journal
- Accession number :
- 110362853
- Full Text :
- https://doi.org/10.1093/infdis/jiv218