| Literature DB >> 6611151 |
R P Rubin, P P Godfrey, D A Chapman, J W Putney.
Abstract
The formation of inositol phosphates in response to secretagogues was studied in rat pancreatic acini preincubated with [3H]inositol. Carbachol caused rapid increases in radioactive inositol phosphate, inositol bisphosphate and inositol trisphosphate . This effect was blocked by atropine, and also elicited by caerulein, but not by ionomycin or phorbol dibutyrate. Thus phospholipase C-mediated breakdown of polyphosphoinositides, with the resulting formation of inositol phosphates, may be an early step in the stimulus-secretion coupling pathway in exocrine pancreas. Inositol trisphosphate may function as a second messenger in the exocrine pancreas, coupling receptor activation to internal Ca2+ release.Entities:
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Year: 1984 PMID: 6611151 PMCID: PMC1153524 DOI: 10.1042/bj2190655
Source DB: PubMed Journal: Biochem J ISSN: 0264-6021 Impact factor: 3.857