Linked Life Data

3103618

Source:http://linkedlifedata.com/resource/pubmed/id/3103618

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1987-4-22
pubmed:abstractText
Cross-linking of receptor bound IgE antibodies by multivalent antigen (DNP8-BSA) on PB-3c cells leads to an increase of cytosolic calcium ((Ca2+)i). Active tumor promoting phorbol esters and teleocidin which specifically activate the phospholipid Ca2+-sensitive protein kinase (PKC), inhibited the antigen-mediated rise in (Ca2+)i and induced a time and dose-dependent translocation of cytosolic PKC to membranes of the PB-3c cells as determined by enzyme activity or immunoblotting using a polyclonal anti-PKC antibody. This TPA concentration did not affect the subcellular distribution of PKC, although 1 nM of 12-O-tetradecanoylphorbol-13-acetate (TPA) inhibited to 50% the antigen-mediated increase in (Ca2+)i. The concentration of TPA required to induce a half-maximal subcellular redistribution of immunodetectable PKC activity was an order of magnitude greater than the half-maximal dose required to inhibit the antigen-mediated increase in (Ca2+)i. These data demonstrate that the TPA-dependent activation of PKC is not directly coupled to its translocation to membranes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
27
pubmed:volume
143
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
252-9
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1987
pubmed:articleTitle
Translocation of protein kinase C is not required to inhibit the antigen-induced increase of cytosolic calcium in a mast cell line.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't