Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1990-5-24
pubmed:abstractText
The effects of prostaglandin E2 (PGE2) were examined in a murine macrophage cell line (BAC1.2F5) that was completely dependent on colony-stimulating factor-1 (CSF-1) for both growth and survival. The addition of PGE2 to cultures of BAC1.2F5 cells resulted in the inhibition of CSF-1-induced [3H]thymidine incorporation and cell proliferation. The inhibitory effects of PGE2 were mimicked by the addition of dibutyryl-cyclic AMP, and the effectiveness of PGE2 was markedly potentiated by 1-methyl-3-isobutylxanthine, a potent inhibitor of cyclic nucleotide phosphodiesterase activity. PGE2 caused a 10-fold elevation of the intracellular cyclic AMP concentration, whereas CSF-1 neither increased cyclic AMP levels nor attenuated the rise in cyclic AMP promoted by PGE2. However, CSF-1 may indirectly regulate cyclic AMP levels since in the absence of CSF-1, BAC1.2F5 cells actively synthesized PGE2, whereas PGE2 production was abruptly terminated by the addition of CSF-1. In BAC1.2F5 cells, PGE2 increases the intracellular cyclic AMP concentration, thereby blocking cell proliferation, but does not down-regulate the CSF-1 receptor or abrogate the functions of CSF-1 necessary for cell survival.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
25
pubmed:volume
265
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
6611-6
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Prostaglandin E2 inhibition of growth in a colony-stimulating factor 1-dependent macrophage cell line.
pubmed:affiliation
Department of Biochemistry, St. Jude Children's Research Hospital, Memphis, Tennessee 38101.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't