Linked Life Data

19685039

Source:http://linkedlifedata.com/resource/pubmed/id/19685039

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2009-10-21
pubmed:abstractText
We have studied the association between M(3) muscarinic acetylcholine receptors (M(3)-mAChR) and protein kinase C-epsilon (PKC-epsilon) during ischemic myocardial injury using Western blot analysis and immunoprecipitation technique. Myocardial ischemia (MI) induced PKC-epsilon translocation from cytosolic to membrane fractions. This translocation participated in the phosphorylation of M(3)-mAChR in membrane fractions, which could be abolished by the inhibitor of PKC, chelerythrine chloride. On the other hand, M(3)-mAChR could also regulate the expression of PKC-epsilon in ischemic myocardium. Choline (choline chloride, an M(3) receptor agonist, administered at 15 min before occlusion) strengthened the association between PKC-epsilon and M(3)-mAChR. However, blockade of M(3)-mAChR by 4-diphenylacetoxy-N-methylpiperidine methiodide (an M(3) receptor antagonist, administered at 20 min before occlusion) completely inhibited the effect of choline on the expression of PKC-epsilon. We conclude that the translocation of PKC-epsilon is required for the phosphorylation of M(3)-mAChR; moreover, increased PKC-epsilon activity is associated with M(3)-mAChR during MI. This reciprocal regulation is likely to play a role in heart signal transduction during ischemia between ventricular myocytes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1432-1912
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
380
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
443-50
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Reciprocal regulation between M3 muscarinic acetylcholine receptor and protein kinase C-epsilon in ventricular myocytes during myocardial ischemia in rats.
pubmed:affiliation
Institute of Clinical Pharmacology of Second Hospital, Harbin Medical University, Key Laboratory of Heilongjiang Province, Baojian Road 157, Nangang District, Harbin, Heilongjiang Province, 150081, People's Republic of China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't