Effect of CCK-octapeptide and secretin on amylase secretion in isolated rat pancreatic acinar cells.

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

Digestion

journal_title

Digestion

authors

Lee PC

doi

10.1159/000198316

subject

Has Abstract

pub_date

1979-01-01 00:00:00

pages

6-14

issue

1

eissn

0012-2823

issn

1421-9867

journal_volume

19

pub_type

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