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Chemokine receptor trafficking coordinates neutrophil clustering and dispersal at wounds in zebrafish

Published version
Peer-reviewed

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Authors

Coombs, Caroline 
Georgantzoglou, Antonios  ORCID logo  https://orcid.org/0000-0003-4418-8749
Walker, Hazel A. 

Abstract

Abstract: Immune cells congregate at specific loci to fight infections during inflammatory responses, a process that must be transient and self-resolving. Cell dispersal promotes resolution, but it remains unclear how transition from clustering to dispersal is regulated. Here we show, using quantitative live imaging in zebrafish, that differential ligand-induced trafficking of chemokine receptors such as Cxcr1 and Cxcr2 orchestrates the state of neutrophil congregation at sites of tissue damage. Through receptor mutagenesis and biosensors, we show that Cxcr1 promotes clustering at wound sites, but is promptly desensitized and internalized, which prevents excess congregation. By contrast, Cxcr2 promotes bidirectional motility and is sustained at the plasma membrane. Persistent plasma membrane residence of Cxcr2 prolongs downstream signaling and is required for sustained exploratory motion conducive to dispersal. Thus, differential trafficking of two chemokine receptors allows coordination of antagonistic cell behaviors, promoting a self-resolving migratory response.

Description

Keywords

Article, /631/80/84/2337, /631/80/84/1372, /631/250/2503, /631/250/2504/223/1699, /13, /13/21, /13/109, /14, /14/19, /14/35, /14/63, /38, /38/88, /59, /64, /64/116, /96, /96/95, /96/21, /96/10, /96/31, article

Journal Title

Nature Communications

Conference Name

Journal ISSN

2041-1723

Volume Title

10

Publisher

Nature Publishing Group UK
Sponsorship
RCUK | Medical Research Council (MRC) (MR/L019523/1)
Wellcome Trust (Wellcome) (204845/Z/16/Z)
Isaac Newton Trust (12.21(a)i)
Deutsche Forschungsgemeinschaft (German Research Foundation) (FOR2372)