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The Macrophage-Specific Promoter mfap4 Allows Live, Long-Term Analysis of Macrophage Behavior during Mycobacterial Infection in Zebrafish.

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Date
2015
Authors
Walton, Eric M
Cronan, Mark R
Beerman, Rebecca W
Tobin, David M
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Abstract
Transgenic labeling of innate immune cell lineages within the larval zebrafish allows for real-time, in vivo analyses of microbial pathogenesis within a vertebrate host. To date, labeling of zebrafish macrophages has been relatively limited, with the most specific expression coming from the mpeg1 promoter. However, mpeg1 transcription at both endogenous and transgenic loci becomes attenuated in the presence of intracellular pathogens, including Salmonella typhimurium and Mycobacterium marinum. Here, we describe mfap4 as a macrophage-specific promoter capable of producing transgenic lines in which transgene expression within larval macrophages remains stable throughout several days of infection. Additionally, we have developed a novel macrophage-specific Cre transgenic line under the control of mfap4, enabling macrophage-specific expression using existing floxed transgenic lines. These tools enrich the repertoire of transgenic lines and promoters available for studying zebrafish macrophage dynamics during infection and inflammation and add flexibility to the design of future macrophage-specific transgenic lines.
Type
Journal article
Subject
Animals
Animals, Genetically Modified
Cell Lineage
Disease Models, Animal
Host-Pathogen Interactions
Immunity, Innate
Larva
Macrophages
Mycobacterium Infections
Mycobacterium marinum
Promoter Regions, Genetic
Salmonella typhimurium
Transgenes
Zebrafish
Zebrafish Proteins
Permalink
https://hdl.handle.net/10161/10845
Published Version (Please cite this version)
10.1371/journal.pone.0138949
Publication Info
Walton, Eric M; Cronan, Mark R; Beerman, Rebecca W; & Tobin, David M (2015). The Macrophage-Specific Promoter mfap4 Allows Live, Long-Term Analysis of Macrophage Behavior during Mycobacterial Infection in Zebrafish. PLoS One, 10(10). pp. e0138949. 10.1371/journal.pone.0138949. Retrieved from https://hdl.handle.net/10161/10845.
This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
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Scholars@Duke

Rebecca Beerman

Program Mgr, Clinical Data Mgmt
Tobin

David M. Tobin

Associate Professor of Molecular Genetics and Microbiology
Tuberculosis: Mycobacterial Pathogenesis and Host Susceptibility Tuberculosis kills 1.5 million people annually. Our laboratory aims to understand the intricate interplay between mycobacteria and their hosts using a combination of model organism genetics, human genetics, pharmacology and high-resolution microscopy. By identifying key pathways utilized by the infecting bacteria and the host innate immune system, we hope to discover new therapeutic targets and interventi
Alphabetical list of authors with Scholars@Duke profiles.
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