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Link to original content: https://pubmed.ncbi.nlm.nih.gov/19615922/
Guidance of B cells by the orphan G protein-coupled receptor EBI2 shapes humoral immune responses - PubMed Skip to main page content
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. 2009 Aug 21;31(2):259-69.
doi: 10.1016/j.immuni.2009.06.016. Epub 2009 Jul 16.

Guidance of B cells by the orphan G protein-coupled receptor EBI2 shapes humoral immune responses

Dominique Gatto  1 , Didrik Paus, Antony Basten, Charles R Mackay, Robert Brink
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Guidance of B cells by the orphan G protein-coupled receptor EBI2 shapes humoral immune responses

Dominique Gatto et al. Immunity. .
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Abstract

Humoral immunity depends on both rapid and long-term antibody production against invading pathogens. This is achieved by the generation of spatially distinct extrafollicular plasmablast and follicular germinal center (GC) B cell populations, but the signals that guide responding B cells to these alternative compartments have not been fully elucidated. Here, we show that expression of the orphan G protein-coupled receptor Epstein-Barr virus-induced gene 2 (EBI2, also known as GPR183) by activated B cells was essential for their movement to extrafollicular sites and induction of early plasmablast responses. Conversely, downregulation of EBI2 enabled B cells to access the center of follicles and promoted efficient GC formation. EBI2 therefore provides a previously uncharacterized dimension to B cell migration that is crucial for coordinating rapid versus long-term antibody responses.

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