Linked Life Data

7771689

Source:http://linkedlifedata.com/resource/pubmed/id/7771689

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1995-6-30
pubmed:abstractText
The expression patterns of the gap junction genes connexin40 and connexin43 have been analyzed during late mouse fetal development, i.e., at embryonic days 14.5 and 16.5, by in situ hybridization and immunofluorescence. Connexin40 was found in endothelial cells of vessels, cardiomyocytes and in developing myoblasts and myotubes. Expression of connexin40 in developing muscle fibers was strong in the back muscles and weaker in the muscles of the limbs. The number of labeled cells in the back muscle decreased with ongoing differentiation of myoblasts, in accordance with the idea that connexin40 is only expressed in the early stages of muscle cell differentiation. Within a muscle bundle, connexin40 expression was predominantly found at the outermost side where myoblasts fuse to multinucleated myotubes. In contrast, connexin43 exhibits a wide and complex pattern of expression in fetal mouse development. It is found in organs originating from all three germ layers, such as epidermis, heart, lung, muscle, kidney and gut. Connexin43 transcript and protein were very abundant in tissues that had been undergoing inductive interactions, e.g., the inner enamel epithelium of the teeth, the glomeruli of the kidneys and the infundibulum forming the neural part of the pituitary gland. Very high connexin43 expression was found in the embryonic meninges (dura mater) and in the fetal adrenal cortex. During keratinocyte differentiation connexin43 mRNA expression decreased, being much stronger in the stratum basale than in stratum granulosum. No obvious discrepancy between the amount of mRNA and protein of either connexin was noticed, suggesting that there is no specific translational regulation at these developmental stages.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0340-2061
pubmed:author
pubmed:issnType
Print
pubmed:volume
191
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
267-78
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Expression of gap junction genes, connexin40 and connexin43, during fetal mouse development.
pubmed:affiliation
Abt. Molekulargenetik, Universität Bonn, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't