Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1989-2-13
pubmed:abstractText
Synovial fluid (SF) from rheumatoid arthritis patients (RA) and culture-supernatants of synovial tissue (ST) cells from RA patients and juvenile rheumatoid arthritis (JRA) patients were examined for their ability to promote B cell growth. SF was not suitable for studying B cell growth promotion because with the anti-mu driven assay system employed, all 15 samples strongly inhibited B cell proliferation. Supernatants of in vitro unstimulated ST cells from RA and JRA patients affected B cell growth in different ways, ranging from strong inhibition to moderate stimulation. Supernatants of unstimulated peripheral blood mononuclear cells (MNC) from healthy donors did not influence B cell proliferation. After phytohaemagglutinin (PHA) stimulation of the ST cells and normal MNC, culture supernatants of RA ST cells and normal MNC all stimulated B-cell growth, while culture supernatants of PHA-stimulated JRA ST cells displayed a variable picture. The differences between PHA-supernatants from RA, JRA and normal MNC were not statistically significant. These results indicate that the inflamed synovia of JRA and RA patients contain cells that can produce soluble factors with B cell growth promoting activity. Some of the data in the study suggest that these factors are produced in vivo and thus might be responsible for the observed B-cell activation in joints of these patients.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0300-9742
pubmed:author
pubmed:issnType
Print
pubmed:volume
17
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
371-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Immunoregulatory lymphokines in rheumatoid joints. III. B cell growth promoting activity of cells eluted from rheumatoid synovial tissue.
pubmed:affiliation
Institute of Immunology and Rheumatology, Rikshospitalet, Oslo, Norway.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't