Linked Life Data

7784464

Source:http://linkedlifedata.com/resource/pubmed/id/7784464

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2-3
pubmed:dateCreated
1995-7-18
pubmed:abstractText
Synthesis of eicosanoids is initiated by signal transduction cascades which result in the hydrolysis of free arachidonic acid from membrane phospholipids. Both a cytosolic 85 kDa and a nonpancreatic 14 kDa PLA2 may contribute to cellular arachidonate mobilization. In many cells, agonist-stimulated fatty acid release is dependent upon increases in intracellular free calcium and is enhanced by pretreatment with agents such as phorbol esters and soluble diglycerides. The response is specific for arachidonate and structurally similar polyunsaturated fatty acids containing a cis 5, 6 double bond. DMSO-differentiation of U937 cells markedly enhances the A23187-stimulated release of [3H]arachidonate, which appears to be coupled to differentiation-induced enhancement of capacitance calcium entry. Although both phorbol esters and soluble diglycerides enhance subsequent fMLP or A23187-stimulated arachidonate release in human neutrophils, several lines of evidence indicate that the effects of oleoylacetylglycerol and 1,2-dioctanoylglycerol are protein kinase C-independent. Soluble diglycerides, but not phorbol esters, enhance the coupling of arachidonate mobilization to subsequent leukotriene B4 synthesis. Further studies will be required to elucidate the mechanisms which regulate activation of cellular phospholipases and subsequent synthesis.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0952-3278
pubmed:author
pubmed:issnType
Print
pubmed:volume
52
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
93-8
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:articleTitle
Cellular regulation of arachidonate mobilization and metabolism.
pubmed:affiliation
Department of Biochemistry, Eastern Virginia Medical School, Norfolk 23501, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Review