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Burtscher, I. ; Barkey, W. ; Schwarzfischer, M. ; Theis, F.J. ; Lickert, H.

The Sox17-mCherry fusion mouse line allows visualization of endoderm and vascular endothelial development.

Genesis 50, 496-505 (2012)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
Sox17 is a HMG-box transcription factor that has been shown to play important roles in both cardio-vascular development and endoderm formation. To analyze these processes in greater detail, we have generated a Sox17-mCherry fusion (SCF) protein by gene targeting in ES cells. SCF reporter mice are homozygous viable and faithfully reflect the endogenous Sox17 protein localization. We report that SCF positive cells constitute a subpopulation in the visceral endoderm before gastrulation and time-lapse imaging reveals that SCF monitors the nascent definitive endoderm during epithelialisation. After gastrulation, SCF marks the mid- and hindgut endoderm and vascular endothelial network, which can be imaged during establishment in allantois explant cultures. The SCF reporter is downregulated in the endoderm epithelium and upregulated in endothelial cells of the intestine, lung and pancreas during organogenesis. In summary, the generation of the Sox17-mCherry reporter mouse line allows direct visualization of endoderm and vascular development in culture and the mouse embryo.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Sox17; Foxa2; ES cells; mouse embryos; mCherry fluorescent reporter; endoderm; vasculature; live imaging; gastrulation; pancreas; lung; gut
Language english
Publication Year 2012
Prepublished in Year 2011
HGF-reported in Year 2011
ISSN (print) / ISBN 1526-954X
e-ISSN 1526-968X
Journal Genesis : The Journal of Genetics and Development
Quellenangaben Volume: 50, Issue: 6, Pages: 496-505 Article Number: , Supplement: ,
Publisher Wiley
Reviewing status Peer reviewed
Institute(s) Institute of Diabetes and Regeneration Research (IDR)
Institute of Bioinformatics and Systems Biology (IBIS)
Institute of Stem Cell Research (ISF)
POF-Topic(s) 90000 - German Center for Diabetes Research
30201 - Metabolic Health
30505 - New Technologies for Biomedical Discoveries
30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
Research field(s) Helmholtz Diabetes Center
Enabling and Novel Technologies
Stem Cell and Neuroscience
PSP Element(s) G-501900-231
G-502300-001
G-503700-004
G-500890-001
PubMed ID 22121118
DOI 10.1002/dvg.20829
Scopus ID 84862488952
Erfassungsdatum 2011-12-20
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