Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2000-3-29
pubmed:abstractText
The antigen-mediated activation of mast cells by means of IgE antibodies bound to the cell surface leads to direct interactions between FcepsilonRI receptor cytoplasmic domains and various intracellular proteins. These interactions initiate diverse signal-transduction pathways, and the activation of these pathways results in the immediate release of proinflammatory agents. A delayed response also occurs and includes the release of various cytokines. It is clear that the activation of kinases is a requirement for the exocytosis observed in mast cells. In addition to the tyrosine phosphorylation of the affected system by soluble tyrosine kinases, activity of protein kinase C (PKC) results in serine or threonine phosphorylation of multiple protein substrates. In this study, we found that mast cells derived from PKCbeta-deficient mice produce less interleukin 6 in response to IgE-Ag. The inhibition of exocytosis in the PKCbeta-deficient mast cells occurred whether the stimuli were due to the aggregation of the mast cell surface FcepsilonRI or to the calcium ionophore, ionomycin. However, no significant changes were observed in the proliferative response of the mast cells to interleukin 3 (IL-3) or in their apoptotic rate after IL-3 depletion. (Blood. 2000;95:1752-1757)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0006-4971
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
95
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1752-7
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:10688834-Animals, pubmed-meshheading:10688834-Apoptosis, pubmed-meshheading:10688834-Basophil Degranulation Test, pubmed-meshheading:10688834-Bone Marrow Cells, pubmed-meshheading:10688834-Calcium, pubmed-meshheading:10688834-Cytoplasmic Granules, pubmed-meshheading:10688834-Exocytosis, pubmed-meshheading:10688834-Immunoglobulin E, pubmed-meshheading:10688834-Interleukin-3, pubmed-meshheading:10688834-Interleukin-6, pubmed-meshheading:10688834-Ionomycin, pubmed-meshheading:10688834-Isoenzymes, pubmed-meshheading:10688834-Mast Cells, pubmed-meshheading:10688834-Mice, pubmed-meshheading:10688834-Mice, Knockout, pubmed-meshheading:10688834-Mitomycin, pubmed-meshheading:10688834-Peritoneal Cavity, pubmed-meshheading:10688834-Phosphorylation, pubmed-meshheading:10688834-Protein Kinase C, pubmed-meshheading:10688834-Protein Processing, Post-Translational, pubmed-meshheading:10688834-RNA, Messenger, pubmed-meshheading:10688834-Receptors, IgE, pubmed-meshheading:10688834-Signal Transduction
pubmed:year
2000
pubmed:articleTitle
Inhibition of degranulation and interleukin-6 production in mast cells derived from mice deficient in protein kinase Cbeta.
pubmed:affiliation
Department of Biochemistry, Hebrew University-Hadassah Medical School, Jerusalem, Israel.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't