BMP signaling in the development of the mouse esophagus and forestomach.

dc.contributor.author

Rodriguez, Pavel

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Da Silva, Susana

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Oxburgh, Leif

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Wang, Fan

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Hogan, Brigid LM

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Que, Jianwen

dc.coverage.spatial

England

dc.date.accessioned

2011-06-21T17:27:32Z

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2010-12

dc.description.abstract

The stratification and differentiation of the epidermis are known to involve the precise control of multiple signaling pathways. By contrast, little is known about the development of the mouse esophagus and forestomach, which are composed of a stratified squamous epithelium. Based on prior work in the skin, we hypothesized that bone morphogenetic protein (BMP) signaling is a central player. To test this hypothesis, we first used a BMP reporter mouse line harboring a BRE-lacZ allele, along with in situ hybridization to localize transcripts for BMP signaling components, including various antagonists. We then exploited a Shh-Cre allele that drives recombination in the embryonic foregut epithelium to generate gain- or loss-of-function models for the Bmpr1a (Alk3) receptor. In gain-of-function (Shh-Cre;Rosa26(CAG-loxpstoploxp-caBmprIa)) embryos, high levels of ectopic BMP signaling stall the transition from simple columnar to multilayered undifferentiated epithelium in the esophagus and forestomach. In loss-of-function experiments, conditional deletion of the BMP receptor in Shh-Cre;Bmpr1a(flox/flox) embryos allows the formation of a multilayered squamous epithelium but this fails to differentiate, as shown by the absence of expression of the suprabasal markers loricrin and involucrin. Together, these findings suggest multiple roles for BMP signaling in the developing esophagus and forestomach.

dc.description.version

Version of Record

dc.identifier

http://www.ncbi.nlm.nih.gov/pubmed/21068065

dc.identifier

dev.056077

dc.identifier.eissn

1477-9129

dc.identifier.uri

https://hdl.handle.net/10161/4178

dc.language

eng

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en_US

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The Company of Biologists

dc.relation.ispartof

Development

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10.1242/dev.056077

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Development

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Animals

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Bone Morphogenetic Protein Receptors

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Bone Morphogenetic Protein Receptors, Type I

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Bone Morphogenetic Proteins

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Carrier Proteins

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Epithelium

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Esophagus

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Gene Expression Regulation, Developmental

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Hedgehog Proteins

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Immunohistochemistry

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In Situ Hybridization

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Mice

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Signal Transduction

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Stomach

dc.title

BMP signaling in the development of the mouse esophagus and forestomach.

dc.title.alternative
dc.type

Journal article

duke.contributor.orcid

Wang, Fan|0000-0003-2988-0614

duke.date.pubdate

2010-12-15

duke.description.issue

24

duke.description.volume

137

pubs.author-url

http://www.ncbi.nlm.nih.gov/pubmed/21068065

pubs.begin-page

4171

pubs.end-page

4176

pubs.issue

24

pubs.organisational-group

Basic Science Departments

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Cell Biology

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Clinical Science Departments

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Duke

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Duke Cancer Institute

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Duke Institute for Brain Sciences

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Institutes and Centers

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Institutes and Provost's Academic Units

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Neurobiology

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Pediatrics

pubs.organisational-group

School of Medicine

pubs.organisational-group

University Institutes and Centers

pubs.publication-status

Published

pubs.volume

137

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