VIP inhibits histamine-induced ultrastructural changes related to acid secretion by parietal cells

We have studied the in vitro effect of VIP and histamine on ultrastructure of the parietal cells in isolated guinea pig fundic glands. The morphological changes induced by histamine in the parietal cells can be compared to those observed after histamine stimulation in vivo or in vitro on gastric muc...

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Veröffentlicht in:Peptides (New York, N.Y. : 1980) N.Y. : 1980), 1984-03, Vol.5 (2), p.277-283
Hauptverfasser: Anteunis, A., Gespach, C., Astesano, A., Emami, S., Robineaux, R., Rosselin, G.
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container_end_page 283
container_issue 2
container_start_page 277
container_title Peptides (New York, N.Y. : 1980)
container_volume 5
creator Anteunis, A.
Gespach, C.
Astesano, A.
Emami, S.
Robineaux, R.
Rosselin, G.
description We have studied the in vitro effect of VIP and histamine on ultrastructure of the parietal cells in isolated guinea pig fundic glands. The morphological changes induced by histamine in the parietal cells can be compared to those observed after histamine stimulation in vivo or in vitro on gastric mucosa preparations. In contrast, VIP incubation did not produce the ultrastructural changes related to gastric acid secretion, in resting parietal cells. Pretreatment of the glands by VIP resulted in a remarkable suppression of the histamine effect, since the parietal cells assumed an almost resting state. The data (1) indicate that the parietal cells in isolated gastric glands of the guinea pig retain in vitro the capacity to undergo the ultrastructural changes that are related to acid secretion in vivo after histamine or cAMP and (2) suggest that VIP is an inhibitor of histamine-induced gastric acid secretion in the guinea pig. It is proposed that VIP could act directly on the parietal cell via cAMP-phosphodiesterase activation, or indirectly via gastric somatostatin and/or prostaglandin secretions, inhibiting the H 2 receptor-cAMP system of the parietal cell.
doi_str_mv 10.1016/0196-9781(84)90219-5
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1873-5169
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source MEDLINE; Access via ScienceDirect (Elsevier)
subjects Animals
Cyclic AMP - metabolism
Gastric Acid - metabolism
Guinea pig
Guinea Pigs
Histamie H 2 receptor
Histamine - pharmacology
Histamine Antagonists
Isolated gastric glands
Male
Microscopy, Electron
Parietal cells
Parietal Cells, Gastric - drug effects
Parietal Cells, Gastric - metabolism
Parietal Cells, Gastric - ultrastructure
Ultrastructure
Vasoactive intestinal peptide
Vasoactive Intestinal Peptide - pharmacology
title VIP inhibits histamine-induced ultrastructural changes related to acid secretion by parietal cells
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