Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5963
pubmed:dateCreated
1984-6-20
pubmed:abstractText
The increase in cytosolic [Ca2+] induced by Ca-mobilizing hormones in liver is mainly due to release of Ca from intracellular stores. For Ca to be released from internal sites a messenger must be formed at the plasma membrane which diffuses into the cytosol to signal Ca release from the intracellular organelles. One of the first actions of these hormones is to cause breakdown of the polyphosphoinositides to form soluble inositol phosphates. Some evidence for the idea that these substances could be the second messenger has been obtained in pancreatic acinar cells. Here we have found that hormone activation of hepatocytes causes rapid breakdown of phosphatidylinositol 4,5-bisphosphate [ PtdIns (4,5)P2] to form inositol trisphosphate ( InsP3 ). When applied to permeabilized hepatocytes, InsP3 releases Ca from non-mitochondrial ATP-dependent pools. This suggests that InsP3 could be the messenger linking Ca-mobilizing receptor activation to intracellular Ca release in liver.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0028-0836
pubmed:author
pubmed:issnType
Print
pubmed:volume
309
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
63-6
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:articleTitle
The second messenger linking receptor activation to internal Ca release in liver.
pubmed:publicationType
Journal Article, In Vitro, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't