Linked Life Data

8149328

Source:http://linkedlifedata.com/resource/pubmed/id/8149328

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1994-5-6
pubmed:abstractText
The ultrastructural features of macrophages and dendritic cells of mice homozygous for osteopetrosis (op/op) mutation were studied. The mutant mice are characterized by defective differentiation of osteoclasts, monocytes, and tissue macrophages due to the lack of functional macrophage colony stimulating factor (M-CSF/CSF-1) activity. In op/op mice, tissue macrophages were reduced in number and smaller than in normal littermates. Macrophages in op/op mice showed various degrees of phagocytosis but the development of intracytoplasmic organelles and microvillous projections was poor. After administration of CSF-1 daily for 2 weeks, macrophages in op/op mice developed lysosomes and microvillous projections. In the thymic medulla, T-cell zone of lymph nodes, splenic white pulp and epidermis of the op/op mice, the number of dendritic cells was similar to that in normal littermates and the dendritic cells developed a tubulovesicular system typical of interdigitating cells. Birbeck granules in epidermal Langerhans cells were detected in unmanipulated op/op mice, op/op mice injected with CSF-1, and normal littermates or control mice. However, in untreated op/op mice, dendritic cells projected shorter cytoplasmic processes than in normal littermates, normal control mice and CSF-1 injected op/op mice. These results indicate that the differentiation and maturation of tissue macrophages are mediated by CSF-1, but the dendritic cell differentiation is controlled by other factor(s) than CSF-1, most probably by GM-CSF.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1122-9497
pubmed:author
pubmed:issnType
Print
pubmed:volume
26
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
111-9
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Ultrastructure of macrophages and dendritic cells in osteopetrosis (op) mutant mice lacking macrophage colony-stimulating factor (M-CSF/CSF-1) activity.
pubmed:affiliation
Second Department of Pathology, Niigata University School of Medicine, Japan.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't