Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1992-6-10
pubmed:abstractText
Rat bone marrow cultures containing 1 alpha,25-dihydroxyvitamin D3 [1 alpha,25(OH)2D3] formed multinucleated cells (MNCs) that had many characteristics of osteoclasts. These MNCs, which have a tartrate-resistant acid phosphatase (TRAP) activity, could be classified into two morphological types: one type had smooth cellular margins (smooth-margined MNCs) and the other type had irregular spike-like margins (stellate MNCs). When bone marrow cells depleted of authentic osteoclasts were seeded and cultured on dentine slices, only low numbers of resorption lacunae could be detected. However, when preformed MNCs were detached by trypsinization and replated on dentine slices, numerous resorption lacunae were observed by scanning electron microscopy on these slices. Formation of lacunae occurred reproducibly during the five to ten days of culture. We also examined the effect of retinoic acid on TRAP-positive MNC formation in this bone marrow culture system. Although RA inhibited total TRAP-positive MNC formation, it increased the ratio of stellate MNCs to smooth-margined MNC, suggesting that RA may have the ability to regulate the formation of active osteoclasts.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
8756-3282
pubmed:author
pubmed:issnType
Print
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
139-46
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Trypsinized osteoclast-like multinucleated cells formed in rat bone marrow cultures efficiently form resorption lacunae on dentine.
pubmed:affiliation
Department of Periodontics and Endodontics, Faculty of Dentistry, Kyushu University, Fukuoka, Japan.
pubmed:publicationType
Journal Article