Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1988-12-21
pubmed:abstractText
Patch-clamp recordings were used to study the activation of ion channels in the cell membrane of cultured embryonic chick myotubes treated with the specific activator of protein kinase C, the phorbol ester 12-O-tetradecanoyl-phorbol-13-acetate (TPA; 1 x 10(-7) M). Myotubes exhibited a spontaneous channel activity when the TPA-induced dedifferentiative processes developed. This consisted in the activation of inward current channels (approximately 35 pS conductance; approximately 6 ms open time). These spontaneously active channels were insensitive to alpha-bungarotoxin, curare, atropine and tetrodotoxin and were not inhibited by the withdrawal of TPA. It is suggested that a prolonged stimulation of the protein kinase C causes a irreversible deregulation of the membrane channel function during cell dedifferentiation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0028-1298
pubmed:author
pubmed:issnType
Print
pubmed:volume
338
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
121-4
pubmed:dateRevised
2010-6-4
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Spontaneous channel activity induced by tumor promoter TPA in chick myotubes.
pubmed:affiliation
Istituto di Istologia ed Embriologia generale, Università di Roma, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't