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Live Imaging of Chemokine Receptors in Zebrafish Neutrophils During Wound Responses.

Accepted version
Peer-reviewed

Type

Article

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Authors

Georgantzoglou, Antonios 
Coombs, Caroline 
Walker, Hazel A 

Abstract

Leukocyte guidance by chemical gradients is essential for immune responses. Neutrophils are the first cells to be recruited to sites of tissue damage where they execute crucial antimicrobial functions. Their trafficking to these loci is orchestrated by several inflammatory chemoattractants, including chemokines. At the molecular level, chemoattractant signaling is regulated by the intracellular trafficking of the corresponding receptors. However, it remains unclear how subcellular changes in chemokine receptors affect leukocyte migration dynamics at the cell and tissue level. Here we describe a methodology for live imaging and quantitative analysis of chemokine receptor dynamics in neutrophils during inflammatory responses to tissue damage. These tools have revealed that differential chemokine receptor trafficking in zebrafish neutrophils coordinates neutrophil clustering and dispersal at sites of tissue damage. This has implications for our understanding of how inflammatory responses are self-resolved. The described tools could be used to understand neutrophil migration patterns in a variety of physiological and pathological settings and the methodology could be expanded to other signaling receptors.

Description

Keywords

Animal Fins, Animals, Animals, Genetically Modified, Cell Movement, Chemokines, Chemotactic Factors, Embryo, Nonmammalian, Endocytosis, Humans, Imaging, Three-Dimensional, Larva, Leukocytes, Neutrophils, Receptors, Chemokine, Signal Transduction, Wound Healing, Zebrafish

Journal Title

J Vis Exp

Conference Name

Journal ISSN

1940-087X
1940-087X

Volume Title

Publisher

MyJove Corporation

Rights

All rights reserved
Sponsorship
Medical Research Council (MR/L019523/1)
Wellcome Trust (105391/Z/14/Z)
Wellcome Trust (204845/Z/16/Z)
Milka