Agents and Actions

, Volume 13, Issue 2–3, pp 200–206 | Cite as

Comparison of the effect of PGE2 and somatostatin on histamine stimulated14C-aminopyrine uptake and cyclic AMP formation in isolated rat gastric mucosal cells

  • W. Schepp
  • H. -K. Heim
  • H. -J. Ruoff
Histamine and The Gastrointestinal Tract


In isolated rat gastric cells somatostatin and PGE2 were compared in respect to their effects on the cAMP system and on the histamine-stimulated H+-production, measured by14C-aminopyrine (14C-AP) uptake. Like PGE2 somatostatin activated adenylate cyclase (AC) for all in non-parietal cells. This effect on AC declined in cell fractions with increasing number of parietal cells. Activation of AC or elevation of cellular cAMP and uptake of14C-AP in response to histamine were inhibited by 10−9 to 10−5 mol/l PGE2 and somatostatin. The results indicate remarkable similarity between somatostatin and PGE2: both activate a non-parietal cell AC and both inhibit H+-production, likely by interfering at the histamine sensitive AC of the parietal cell.


Histamine PGE2 Adenylate Cyclase Parietal Cell Mucosal Cell 
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Copyright information

© Birkhäuser Verlag 1983

Authors and Affiliations

  • W. Schepp
    • 1
  • H. -K. Heim
    • 1
  • H. -J. Ruoff
    • 1
  1. 1.Pharmakologisches Institut der Universität TübingenTübingenFederal Republic of Germany

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