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  • Title: Different patterns of proteins are secreted by the pig pancreas when stimulated by secretin alone or in combination with caerulein.
    Author: LeBel D, Beaudoin AR.
    Journal: Biochim Biophys Acta; 1985 Oct 30; 847(1):132-5. PubMed ID: 4052456.
    Abstract:
    The protein compositions of pig pancreatic secretions collected under stimulation by secretin alone or in combination with caerulein were compared by SDS polyacrylamide gel electrophoresis. Different sets of proteins were observed in these two different conditions. One of the major proteins secreted under secretin alone was immunologically similar to the 92 kDa glycoprotein characteristic of the pig zymogen granule membrane. Since its proportion in the two secretions was drastically different and since this protein is exclusively found in the acinar cell, these observations support the view that the proteins released by the pig pancreas under secretin stimulation alone, and under the combination of secretin + caerulein do not originate from the same intracellular pool of the acinar cell and that the secretin-induced secretion does not derive from zymogen granules.
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