Both CD31+and CD31- naive CD4+ T cells are persistent HIV type 1-infected reservoirs in individuals receiving antiretroviral therapy

Fiona Wightman, Ajantha Solomon, Gabriela Khoury, Justin A. Green, Lachlan Gray, Paul R. Gorry, Ho Yung Shwen, Nitin K. Saksena, Jennifer Hoy, Suzanne M. Crowe, Paul U. Cameron, Sharon R. Lewin

Research output: Contribution to journalArticlepeer-review

82 Scopus citations

Abstract

Background. Naive T cell recovery is critical for successful immune reconstitution after antiretroviral therapy (ART), but the relative contribution of CD31+ and CD31- naive T cells to immune reconstitution and viral persistence is unknown. Methods. In a cross-sectional (n = 94) and longitudinal (n = 10) study of human immunodeficiency virus (HIV)-infected patients before and after ART, we examined the ratio of CD31+ to CD31- naive CD4+ T cells. In the longitudinal cohort we then quantified the concentration of HIV-1 DNA in each cell subset and performed single-genome amplification of virus from memory and naive T cells. Results. Patients receiving ART had a higher proportion of CD31+ CD4 + T cells than HIV-1-infected individuals naive to ART and uninfected control subjects (P<.001 and .007, respectively). After 24 months of ART, the proportion of CD31+ naive CD4+ T cells did not change, the concentration of HIV-1 DNA in memory CD4+ T cells significantly decreased over time (P<.001), and there was no change in the concentration of HIV-1 DNA in CD31+ or CD31- naive CD4+ T cells (P = .751 and .251, respectively). Single-genome amplification showed no evidence of virus compartmentalization in memory and naive T cell subsets before or after ART. Conclusions. After ART, both CD31+ and CD31 - naive CD4+ T cells expand, and both subsets represent a stable, persistent reservoir of HIV-1.

Original languageEnglish (US)
Pages (from-to)1738-1748
Number of pages11
JournalJournal of Infectious Diseases
Volume202
Issue number11
DOIs
StatePublished - Dec 1 2010

ASJC Scopus subject areas

  • Immunology and Allergy
  • Infectious Diseases

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