Regulatory peptides · 1996
Cholecystokinin (CCK) release from rat brain slices in vitro is enhanced by agents which elevate intracellular cAMP.
СтатьяПоддержка службы здравоохранения СШАНазвание и аннотация: Перевод в очереди
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Beinfeld M C
Аннотация
Cholecystokinin (CCK) release from rat brain slices in vitro is enhanced by agents which elevate intracellular cAMP. Treatment of several CCK expressing tumor cells in culture with agents which increase intracellular cAMP increased secretion of CCK. The possibility that elevation of cAMP also alters potassium-evoked release of CCK from rat brain slices incubated in vitro was also investigated. Treatment of slices of rat prefrontal cortex and caudate-putamen with 5 microM forskolin plus 0.5 mM IBMX (3-isobutyl-1-methylxanthine, a phosphodiesterase inhibitor) caused a significant elevation of potassium-evoked CCK release. That cAMP can increase CCK release in intact brains slices as well as endocrine tumor cells from thyroid, pancreas, pituitary and intestine suggests that cAMP is a common intracellular mediator for the regulation of CCK release.