Abstract:
:Isolated acinar cells from rat pancreas responded well to hormonal treatment. Both secretin (synthetic and highly purified from porcine origin) and CCK-octapeptide stimulated amylase secretion in these cells. The response in both cases was very rapid. A maximal output of enzyme was reached within 5-10 min after the addition of hormones. The concentration producing maximal output for synthetic secretin (Schwarz/Mann) was 5 x 10(-8) M, synthetic secretin (Squibb), 10(-5) M, for purified porcine secretin, 10(-5) M, and for CCK-octapeptide was 5 x 10(-10) M. Secretin (2-fold at optimal concentration) was found to be less efficient compared to CCK-octapeptide (5-fold at optimal concentration) in stimulating amylase release. A combination of secretin and CCK-octapeptide had a synergistic action in stimulating enzyme release by the acinar cells. In addition, pretreatment of acinar cells with secretin potentiated the secretory response of the treated cells to CCK-octapeptide. To a lesser extent pretreatment with CCK-octapeptide also increased the effect of secretin in stimulating enzyme secretion.
journal_name
Digestionjournal_title
Digestionauthors
Lee PCdoi
10.1159/000198316subject
Has Abstractpub_date
1979-01-01 00:00:00pages
6-14issue
1eissn
0012-2823issn
1421-9867journal_volume
19pub_type
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