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Circulating CXCR5+CXCR3+PD-1lo Tfh-like cells in HIV-1 controllers with neutralizing antibody breadth
Journal article   Open access   Peer reviewed

Circulating CXCR5+CXCR3+PD-1lo Tfh-like cells in HIV-1 controllers with neutralizing antibody breadth

Enrique Martin-Gayo, Jacqueline Cronin, Taylor Hickman, Zhengyu Ouyang, Madelene Lindqvist, Kellie E. Kolb, Julian Schulze zur Wiesch, Rafael Cubas, Filippos Porichis, Alex K. Shalek, …
JCI insight, v 2(2), pp e89574-e89574
26 Jan 2017
PMID: 28138558
url
http://insight.jci.org/articles/view/89574/files/pdfView
Published, Version of Record (VoR) Open
url
https://doi.org/10.1172/jci.insight.89574View
Published, Version of Record (VoR) Open

Abstract

HIV-1–specific broadly neutralizing antibodies (bnAbs) typically develop in individuals with continuous high-level viral replication and increased immune activation, conditions that cannot be reproduced during prophylactic immunization. Understanding mechanisms supporting bnAb development in the absence of high-level viremia may be important for designing bnAb-inducing immunogens. Here, we show that the breadth of neutralizing antibody responses in HIV-1 controllers was associated with a relative enrichment of circulating CXCR5 + CXCR3 + PD-1 lo CD4 + T cells. These CXCR3 + PD-1 lo Tfh-like cells were preferentially induced in vitro by functionally superior dendritic cells from controller neutralizers, and able to secrete IL-21 and support B cells. In addition, these CXCR3 + PD-1 lo Tfh-like cells contained higher proportions of stem cell–like memory T cells, and upon antigenic stimulation differentiated into PD-1 hi Tfh-like cells in a Notch-dependent manner. Together, these data suggest that CXCR5 + CXCR3 + PD-1 lo cells represent a dendritic cell–primed precursor cell population for PD-1 hi Tfh-like cells that may contribute to the generation of bnAbs in the absence of high-level viremia. The development of neutralizing breadth under controlled viremia is associated with a population of circulating CXCR3+CXCR5+PD-1Lo TFH-like cells.

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Collaboration types
Domestic collaboration
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Web of Science research areas
Medicine, Research & Experimental
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