Linked Life Data

9672840

Source:http://linkedlifedata.com/resource/pubmed/id/9672840

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1998-10-5
pubmed:abstractText
It is well known that the process of branching morphogenesis requires epithelial-mesenchymal interactions. One outstanding model for the study of tissue interactions during branching morphogenesis is the embryonic mouse submandibular gland (SMG). Although it has been clearly demonstrated that the branching pattern is dependent on interactions between the epithelium and the surrounding mesenchyme, little is known about the molecular mechanism underlying the branching process. One group of transcription factors that likely participates in the control of epithelial-mesenchymal inductive interactions are the Msx-class of homeodomain-containing proteins. In this paper, we focus on Msx-2 because its developmental expression is correlated with inductive interactions, suggesting that Msx-2 may play a functional role during cell-cell interactions. We demonstrate the expression of Msx-2 mRNA and protein to be primarily in the branching epithelia with progressive embryonic (E13 to E15) SMG development and, to a lesser extent, in the mesenchyme. We also show that Msx-2 is expressed by embryonic SMG primordia cultured under defined conditions. In addition, to begin to delineate a functional role for Msx-2, we employed an experimental strategy by using exogenous glucocorticoid (CORT) treatment of embryonic SMGs in vitro and in vivo to significantly enhance branching morphogenesis and evaluate the effect of CORT treatment on embryonic SMG Msx-2 expression. A marked increase in Msx-2 transcripts and protein is detected with in vitro and in vivo CORT treatment. Our studies indicate that one mechanism of CORT regulation of salivary gland morphogenesis is likely through the modulation of Msx-2 gene expression.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0270-4145
pubmed:author
pubmed:issnType
Print
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
79-87
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:articleTitle
Msx-2 expression and glucocorticoid-induced overexpression in embryonic mouse submandibular glands.
pubmed:affiliation
Laboratory for Developmental Genetics, University of Southern California, Los Angeles 90089-0641, USA. tjaskoll@hsc.usc.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.