rdf:type |
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lifeskim:mentions |
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pubmed:issue |
1
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pubmed:dateCreated |
2000-2-10
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pubmed:abstractText |
High-affinity cholecystokinin (CCK) receptors were reported to be coupled with phospholipase A2 (PLA2)-arachidonic acid (AA) pathways to mediate Ca2+ oscillations and amylase secretion in rat pancreatic acinar cells. To investigate which types of PLA2 were involved in PLA2-AA pathways, the effects of specific inhibitors for type II and type IV PLA2 on Ca2+ oscillations and amylase secretion were studied in isolated rat pancreatic acini. An inhibitor of type IV (cytosolic) PLA2, AACOCF3 inhibited Ca2+ oscillations elicited by CCK-8 (30 pM) and JMV-180 (100 nM). AACOCF3 inhibited amylase secretion stimulated by JMV-180 and low concentrations of CCK-8 (< or =30 pM). On the other hand, an inhibitor of type II (secretory, nonpancreatic) PLA2 had no effects on Ca2+ oscillations and amylase secretion stimulated by CCK-8 and JMV-180. These results suggest that high-affinity CCK receptors are coupled to cytosolic PLA2 to mediate Ca2+ oscillations and amylase secretion in rat pancreatic acinar cells.
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Amylases,
http://linkedlifedata.com/resource/pubmed/chemical/Arachidonic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/Arachidonic Acids,
http://linkedlifedata.com/resource/pubmed/chemical/Enzyme Inhibitors,
http://linkedlifedata.com/resource/pubmed/chemical/Isoenzymes,
http://linkedlifedata.com/resource/pubmed/chemical/JMV 180,
http://linkedlifedata.com/resource/pubmed/chemical/Phospholipases A,
http://linkedlifedata.com/resource/pubmed/chemical/Phospholipases A2,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Cholecystokinin,
http://linkedlifedata.com/resource/pubmed/chemical/Sincalide,
http://linkedlifedata.com/resource/pubmed/chemical/arachidonyltrifluoromethane
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pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0885-3177
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:volume |
20
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
77-83
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:10630387-Amylases,
pubmed-meshheading:10630387-Animals,
pubmed-meshheading:10630387-Arachidonic Acid,
pubmed-meshheading:10630387-Arachidonic Acids,
pubmed-meshheading:10630387-Calcium Signaling,
pubmed-meshheading:10630387-Enzyme Inhibitors,
pubmed-meshheading:10630387-Isoenzymes,
pubmed-meshheading:10630387-Male,
pubmed-meshheading:10630387-Pancreas,
pubmed-meshheading:10630387-Phospholipases A,
pubmed-meshheading:10630387-Phospholipases A2,
pubmed-meshheading:10630387-Rats,
pubmed-meshheading:10630387-Rats, Wistar,
pubmed-meshheading:10630387-Receptors, Cholecystokinin,
pubmed-meshheading:10630387-Sincalide
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pubmed:year |
2000
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pubmed:articleTitle |
Effects of phospholipase A2 inhibitors on Ca2+ oscillations in pancreatic acinar cells.
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pubmed:affiliation |
Department of Internal Medicine II, Nagoya University School of Medicine, Japan.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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