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Early CCR6 expression on B cells modulates germinal centre kinetics and efficient antibody responses


Reimer, D and Lee, AYS and Bannan, J and Fromm, P and Kara, EE and Comerford, I and McColl, S and Wiede, F and Mielenz, D and Korner, H, Early CCR6 expression on B cells modulates germinal centre kinetics and efficient antibody responses, Immunology and Cell Biology, 95, (1) pp. 33-41. ISSN 0818-9641 (2017) [Refereed Article]

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Copyright 2016 Australasian Society for Immunology Inc.

DOI: doi:10.1038/icb.2016.68


The CC-chemokine receptor 6 (CCR6) can be detected on naive and activated B cells. Counterintuitively, its absence accelerates the appearance of germinal centres (GCs) and increases the production of low-affinity antibodies. The detailed mechanism of CCR6 function during the humoral response has remained elusive, but previously we identified a distinct CCR6high B-cell population in vivo early after antigenic challenge. In this study, we defined this population specifically as early, activated pre-GC B cells. In accordance, we show that CCR6 is upregulated rapidly within hours on the protein or mRNA level after activation in vitro. In addition, only activated B cells migrated specifically towards CCL20, the specific ligand for CCR6. Lack of CCR6 increased the dark zone/light zone ratio of GC and led to decreased antigen-specific IgG1 and IgG2a antibody generation in a B-cell intrinsic manner in mixed bone marrow chimeras. In contrast, antigen-specific IgM responses were normal. Hence, CCR6 negatively regulates entry of activated, antigen-specific pre-GC B cells into the GC reaction.

Item Details

Item Type:Refereed Article
Research Division:Biomedical and Clinical Sciences
Research Group:Immunology
Research Field:Immunology not elsewhere classified
Objective Division:Health
Objective Group:Clinical health
Objective Field:Clinical health not elsewhere classified
UTAS Author:Lee, AYS (Dr Adrian Lee)
UTAS Author:Bannan, J (Ms Jennifer Bannan)
UTAS Author:Korner, H (Professor Heinrich Korner)
ID Code:116003
Year Published:2017 (online first 2016)
Deposited By:Menzies Institute for Medical Research
Deposited On:2017-04-27
Last Modified:2018-12-14
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