Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1987-5-20
pubmed:abstractText
Addition of 8-bromo-cAMP to primary cultures of human placental cytotrophoblasts results in significant alterations in the synthesis of secreted proteins, as detected by labeling with pulses of [35S]methionine. Using immunoprecipitation techniques, we demonstrated that exposure to 8-bromo-cAMP prevented the de novo synthesis and secretion of the extracellular matrix component fibronectin, but enhanced the production of hCG subunits. The effects of the cyclic nucleotide on synthesis and secretion of these proteins were evident within 24 h. 8-Bromo-cAMP increased the cellular content of mRNA encoding the hCG alpha- and beta-subunits and prevented the increase in fibronectin mRNA, as determined by blot hybridization analysis using specific cDNA probes. These findings demonstrate that cyclic nucleotides regulate the synthesis of several specific proteins in cultured human trophoblast by regulating levels of the mRNAs encoding the proteins. The actions of cyclic nucleotides in this regard may be essential for the normal expression of trophoblast endocrine function.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0021-972X
pubmed:author
pubmed:issnType
Print
pubmed:volume
64
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1002-9
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
8-Bromo-adenosine 3',5'-monophosphate regulates expression of chorionic gonadotropin and fibronectin in human cytotrophoblasts.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't