Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1983-4-7
pubmed:abstractText
Metatarsal bone rudiments taken from 12- to 17-day-old mouse embryos were cultivated as organ cultures and/or transplanted on to the chorioallantoic membranes of Japanese quail embryos, with or without the adhering surrounding mesenchyme. In cultivated explants the presence of mesenchyme was essential for the development of osteoclasts. This mesenchyme contained small blood vessels. In transplants with adhering mesenchyme, graft (mouse)-derived osteoclasts predominated, whereas in transplants without surrounding mesenchyme the osteoclasts originated from host (quail) cells. Distinction could be made between mouse- and quail-derived osteoclasts because of the specificity of the chromatin pattern of quail cell nuclei. Precartilaginous anlagen of metatarsals precultured before transplantation, displayed mouse-derived osteoclasts, thus indicating that osteoclast progenitor cells home into the long bone anlage very early, in this case at least 6 days before the appearance of osteoclasts in vivo. During embryonic development, osteoclast progenitor cells could very well be (as in the adult situation) hematopoetic cells conveyed to the site of long bone development by the circulating blood as soon as distribution of these cells starts from central blood-cell forming organs to the periphery. Mesenchyme in and around the long bone region seems to play a role as early deposition site of these cells where proliferation, differentiation, and fusion of osteoclast progenitor cells take place and are controlled.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0012-1606
pubmed:author
pubmed:issnType
Print
pubmed:volume
95
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
429-38
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
The role of mesenchyme in embryonic long bones as early deposition site for osteoclast progenitor cells.
pubmed:publicationType
Journal Article