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Characterization of zebrafish larval inflammatory macrophages.


ABSTRACT: Zebrafish have emerged as a powerful model system to study leukocyte recruitment and inflammation. Here we characterize the morphology and function of inflammatory macrophages in zebrafish larvae. These macrophages can be distinguished from neutrophils by immunolabeling of L-Plastin without MPO co-expression and by an elongated morphology. Live imaging of transgenic zMPO:GFP larvae demonstrate that GFP(lo) macrophages migrate to wounds by extension of thin pseudopods and carry out phagocytosis of tissue debris, and FACS analysis of leukocyte markers indicates expression of CSF1R in these macrophages. These findings identify distinct functional and morphological characteristics of inflammatory macrophages in zebrafish larvae.

SUBMITTER: Mathias JR 

PROVIDER: S-EPMC2742687 | biostudies-literature | 2009 Nov

REPOSITORIES: biostudies-literature

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Characterization of zebrafish larval inflammatory macrophages.

Mathias Jonathan R JR   Dodd M Ernest ME   Walters Kevin B KB   Yoo Sa Kan SK   Ranheim Erik A EA   Huttenlocher Anna A  

Developmental and comparative immunology 20090729 11


Zebrafish have emerged as a powerful model system to study leukocyte recruitment and inflammation. Here we characterize the morphology and function of inflammatory macrophages in zebrafish larvae. These macrophages can be distinguished from neutrophils by immunolabeling of L-Plastin without MPO co-expression and by an elongated morphology. Live imaging of transgenic zMPO:GFP larvae demonstrate that GFP(lo) macrophages migrate to wounds by extension of thin pseudopods and carry out phagocytosis o  ...[more]

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