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Follicular regulatory T cells can be specific for the immunizing antigen and derive from naive T cells.

Published version
Peer-reviewed

Type

Article

Change log

Authors

Aloulou, Meryem 
Carr, Edward J 
Gador, Mylène 
Bignon, Alexandre 
Liblau, Roland S 

Abstract

T follicular regulatory (Tfr) cells are a subset of Foxp3(+) regulatory T (Treg) cells that form in response to immunization or infection, which localize to the germinal centre where they control the magnitude of the response. Despite an increased interest in the role of Tfr cells in humoral immunity, many fundamental aspects of their biology remain unknown, including whether they recognize self- or foreign antigen. Here we show that Tfr cells can be specific for the immunizing antigen, irrespective of whether it is a self- or foreign antigen. We show that, in addition to developing from thymic derived Treg cells, Tfr cells can also arise from Foxp3(-) precursors in a PD-L1-dependent manner, if the adjuvant used is one that supports T-cell plasticity. These findings have important implications for Tfr cell biology and for improving vaccine efficacy by formulating vaccines that modify the Tfr:Tfh cell ratio.

Description

Keywords

Animals, B7-H1 Antigen, Female, Mice, Inbred C57BL, T-Lymphocytes, Regulatory

Journal Title

Nat Commun

Conference Name

Journal ISSN

2041-1723
2041-1723

Volume Title

7

Publisher

Springer Science and Business Media LLC