Linked Life Data

216704

Source:http://linkedlifedata.com/resource/pubmed/id/216704

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1979-4-25
pubmed:abstractText
Stable variants of the macrophage-like cell line J774.2, defective in adenylate cyclase and protein kinase activities, were selected by cloning cells resistant to the growth-inhibitory effect of cholera toxin and 8-bromo-adenosine 3':5' cyclic monophosphoric acid (8 Br-cAMP), respectively. These variants were analyzed for their ability to respond to cyclic AMP-mediated enhancement of phagocytosis and cyclic AMP-mediated inhibition of plasminogen activator secretion and growtn. The adenylate cyclase variants were unaffected by cholera toxin but were sensitive to 8 Br-cAMP-mediated inhibition of plasminogen activator secretion and growth. One of these variants exhibited a defect in phagocytosis that could be corrected by 8 Br-cAMP. The protein kinase variants exhibited normal basal phagocytosis that could not be stimulated by either 8 Br-cAMP or cholera toxin; they were also insensitive to cyclic AMP-mediated inhibition of plasminogen activator secretion and growth. The studies demonstrate that the three effects of cyclic AMP in J774.2--inhibition of growth and plasminogen activator secretion, and enhancement of basal Fc-mediated phagocytosis--are mediated by a cyclic AMP-dependent portein kinase. The results support the usefulness of variants in cyclic nucleotide metabolism in understanding the regulation of differentiated cell function by cyclic AMP.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0021-9541
pubmed:author
pubmed:issnType
Print
pubmed:volume
98
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
125-36
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1979
pubmed:articleTitle
Properties of protein kinase and adenylate cyclase-deficient variants of a macrophage-like cell line.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.