Effect of pancreastatin on pancreatic endocrine and exocrine secretion

Jin Ishizuka, Lsamu Asada, Graeme J. Poston, Felix Lluis, Kazuhiko Tatemoto, George H. Greeley, James C. Thompson

    Research output: Contribution to journalArticle

    40 Scopus citations

    Abstract

    Pancreastatin is a novel peptide that was recently purified from extracts of the porcine pancreas. The present study shows that pancreastatin (10~9-10-8 M) can stimulate release of insulin from both the isolated perfused rat pancreas and from cultured rat islet cells in the presence of a low, non-insulinotropic concentration of glucose (4.2 mM). Pancreastatin CIO”9 M) can also inhibit release of insulin stimulated by a high concentration of glucose (16.7 mM). Pancreastatin, at 10 8 M, can enhance glucose (8.3 mM) induced release of insulin in the static islet cell incubation. In addition, pancreastatin (10“9-10-8 M) can inhibit, in a dose-dependent fashion, cholecystokinin (CCK)-8 stimulated release of amylase from dispersed guinea pig pancreatic acini. Pancreastatin alone, however, did not affect basal release of amylase. Our study shows that pancreastatin can exert a direct effect on both pancreatic endocrine and exocrine secretion.

    Original languageEnglish (US)
    Pages (from-to)277-281
    Number of pages5
    JournalPancreas
    Volume4
    Issue number3
    DOIs
    StatePublished - Jun 1989

    Keywords

    • CCK
    • Guinea pig
    • Insulin
    • Pancreatic amylase
    • Rat

    ASJC Scopus subject areas

    • Internal Medicine
    • Endocrinology, Diabetes and Metabolism
    • Hepatology
    • Endocrinology

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  • Cite this

    Ishizuka, J., Asada, L., Poston, G. J., Lluis, F., Tatemoto, K., Greeley, G. H., & Thompson, J. C. (1989). Effect of pancreastatin on pancreatic endocrine and exocrine secretion. Pancreas, 4(3), 277-281. https://doi.org/10.1097/00006676-198906000-00001