Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1993-6-3
pubmed:abstractText
We analyzed the phenotypic changes associated with monocyte activation and differentiation using a newly developed monoclonal antibody (B148.4). Among peripheral blood leukocytes, the antigen recognized by this antibody is expressed on monocytes and granulocytes at high and low density, respectively. Antigen expression is lost during in vitro differentiation of monocytes and is absent on tissue macrophages, indicating that expression of this antigen is related to monocyte differentiation. Only 1 alpha,25-dihydroxyvitamin D3 and phorbol diesters, of several inducers tested, up-regulate B148.4 antigen expression on cells (monocytes and certain myeloid cell lines) that constitutively bear the antigen, without, however, allowing its maintenance during monocytic differentiation or inducing it on negative cells. By immunoprecipitation from B148.4+ U937 cells, the antigen is a complex of a major 116-kd and two minor 38- and 46-kd molecules. Analysis of eight different tissues reveals that the antigen is shared with endothelial cells. Biochemical characteristics, cellular distribution, and expression pattern on monocytes, myeloid cell lines, and AML cells upon culture with different stimuli indicate that B148.4 is a novel monocyte differentiation antigen.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0741-5400
pubmed:author
pubmed:issnType
Print
pubmed:volume
53
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
390-8
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Characterization of a human monocyte antigen, B148.4, regulated during cell differentiation and activation.
pubmed:affiliation
INSERM U.211, Faculté de Médecine, Nantes, France.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S.