Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
1997-9-4
pubmed:abstractText
Transforming growth factor beta (TGF beta) has previously been shown to have actions on chondrocytes and cartilage both in vitro and in vivo which suggest a role in connective tissue repair. In particular, some of its actions have been shown to be antagonistic to those of interleukin 1 (IL-1). In this study, the effects of TGF beta on prostaglandin E (PGE) production and caseinase activity, in the presence and absence of IL-1, in human articular chondrocytes were investigated. TGF beta 1 and TGF beta 2 were shown to modulate IL-1 beta-stimulated PGE production and caseinase activity. Both TGF beta 1 and beta 2 inhibited IL-1 beta-stimulated PGE production in the absence of serum and augmented it in the presence of serum. TGF beta 1 and TGF beta 2 inhibited IL-1-stimulated caseinase activity with and without serum. In general, the TGF beta s had little or no effect on basal PGE or caseinase levels. TGF beta s may be important modulators of chondrocyte metabolism, their effects on PGE production may depend on cytokine interactions; furthermore, their effects on caseinase activity may help prevent cartilage breakdown.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0263-7103
pubmed:author
pubmed:issnType
Print
pubmed:volume
36
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
729-34
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Effects of transforming growth factor beta on the production of prostaglandin E and caseinase activity of unstimulated and interleukin 1-stimulated human articular chondrocytes in culture.
pubmed:affiliation
Department of Human Metabolism and Clinical Biochemistry, Sheffield University Medical School.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't