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Single-cell TCR sequencing reveals phenotypically diverse clonally expanded cells harboring inducible HIV proviruses during ART.

Abstract：

:Clonal expansions occur in the persistent HIV reservoir as shown by the duplication of proviral integration sites. However, the source of the proliferation of HIV-infected cells remains unclear. Here, we analyze the TCR repertoire of single HIV-infected cells harboring translation-competent proviruses in longitudinal samples from eight individuals on antiretroviral therapy (ART). When compared to uninfected cells, the TCR repertoire of reservoir cells is heavily biased: expanded clonotypes are present in all individuals, account for the majority of reservoir cells and are often maintained over time on ART. Infected T cell clones are detected at low frequencies in the long-lived central memory compartment and overrepresented in the most differentiated memory subsets. Our results indicate that clonal expansions highly contribute to the persistence of the HIV reservoir and suggest that reservoir cells displaying a differentiated phenotype are the progeny of infected central memory cells undergoing antigen-driven clonal expansion during ART.

journal_name

Nat Commun

journal_title

Nature communications

authors

Gantner P,Pagliuzza A,Pardons M,Ramgopal M,Routy JP,Fromentin R,Chomont N

doi

10.1038/s41467-020-17898-8

subject

Has Abstract

pub_date

2020-08-14 00:00:00

pages

4089

issue

1

issn

2041-1723

pii

10.1038/s41467-020-17898-8

journal_volume

11

pub_type

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