Linked Life Data

15156401

Source:http://linkedlifedata.com/resource/pubmed/id/15156401

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2004-8-4
pubmed:abstractText
Runx2 (runt-related transcription factor 2) deficient mice lacked the mandibular condylar cartilage and the mandibular bone. The anlage of the condylar process consisted of mesenchymal condensation, which expressed Type I collagen mRNA and alkaline phosphatase activity, but not Type II collagen and aggrecan mRNAs. Therefore, the differentiation of the mandibular condylar cartilage stopped at the preosteoblast (skeletoblast) stage. The lateral pterygoid muscle was attached to this anlage, and relatively abundant mesenchymal condensations were also formed at the muscle-attaching sites, e.g. the anlage of the mandibular body, the angular and coronoid processes. Three-dimensional reconstruction models showed that each mesenchymal condensation was connected to one another, and roughly outlined the shape of the mandible. Meckel's cartilage in the Runx2-deficient mice had two ectopic cartilaginous processes to which the digastric and myohyoid muscles were attached. These findings indicate that Runx2 is essential for the formation of the mandibular condylar cartilage, as well as for normal development of Meckel's cartilage and that muscle tissues influence mandible morphology.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0340-2061
pubmed:author
pubmed:copyrightInfo
Copyright 2004 Springer-Verlag
pubmed:issnType
Print
pubmed:volume
208
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
273-80
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Runx2-deficient mice lack mandibular condylar cartilage and have deformed Meckel's cartilage.
pubmed:affiliation
Maxillofacial Anatomy, Department of Maxillofacial Biology, Graduate School, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, Japan. S.Shibata.mfa@tmd.ac.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't