Linked Life Data

16319946

Source:http://linkedlifedata.com/resource/pubmed/id/16319946

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2006-3-21
pubmed:abstractText
Odontoblasts are postmitotic cells that differentiate from the dental papilla. These cells are responsible for producing the calcified dentin matrix. The pulp-odontoblast interphase contains undifferentiated mesenchymal stem cells, which have the ability to cytodifferentiate into odontoblast-like cells in response to specific signaling molecules. Dentin matrix protein 1 (DMP1) is one of the dentin noncollagenous extracellular matrix proteins that has been implicated in regulation of mineralization. In this study, we have examined the potential role of DMP1 in inducing cytodifferentiation of dental pulp stem cells into odontoblast-like cells and formation of reparative dentin in a rat model. Cavities were drilled and pulps exposed in maxillary first molars. Collagen matrix impregnated with recombinant DMP1 was implanted directly in Group 1, while calcium hydroxide, a commonly used pulp-capping agent was implanted in group 2, collagen matrix that was not impregnated with rDMP1 was implanted directly in group 3, which served as control. Each of these three groups was subdivided into two subgroups, A for 2 weeks time duration and B for 4 weeks duration. At the end of the time period the maxillae were excised, tissues were processed for histological and immunohistochemical evaluations. The results showed that DMP1 could act as a morphogen on undifferentiated mesenchymal cells present in the dentin-pulp complex. These differentiated cells had the potential to regenerate dentin-like tissue, which was confirmed by the presence of collagenous matrix, odontoblast specific markers and calcified deposits.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0969-7128
pubmed:author
pubmed:issnType
Print
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
611-20
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Dentin matrix protein 1 induces cytodifferentiation of dental pulp stem cells into odontoblasts.
pubmed:affiliation
Department of Oral Biology, University of Illinois at Chicago, Chicago, IL 60612, USA.
pubmed:publicationType
Journal Article, Research Support, N.I.H., Extramural