Summary
Cells were isolated by use of collagenase, EDTA and pronase form human gastric mucosa obtained at peptic ulcer surgery (n=61) or at Whipple's operations (n=6). Enriched parietal cell fractions were prepared by isopycnic centrifugation with Percoll. H+ production, intracellular instrinsic factor and histamine content were maximal in the low density fraction containing 75% parietal cells and — among other nonparietal cell types — mast cells. H+ production, intrinsic factor secretion and adenylate cyclase-activity responded to histamine stimulation in a concentration dependent manner. Response was blocked by histamine H2 receptor antagonists (rantidine, famotidine). Dibutyryl cAMP and the phosphodiesterase inhibitor IMX were the most powerful stimuli whereas carbachol, hexoprenaline and pentagastrin were less effective. Prostaglandin E2 and 6-keto-PGF2α occurred in the highest concentrations in the low density cell fraction. PG production increased linearly for 15 min and seemed to be influenced by the intracellular calcium level.
Similar content being viewed by others
Abbreviations
- cAMP:
-
Adenosin-3',5'-cyclisches Monophosphat
- EDTA:
-
Ethylen Diamin Tetraacetat
- IMX:
-
3-Isobutyl-1-Methylxanthin
Literatur
Batzri S (1981) Direct action of somatostatin on dispersed mucosal cells from guinea-pig stomach. Biochim Biophys Acta 677:521–524
Gottlieb Ch, Lau KS, Wasserman R, Herbert V (1965) Rapid charcoal assay for intrinsic factor (IF), gastric juice unsaturated B12 binding capacity, antibody to IF and serum unsaturated B12 binding capacity. Blood 25:875–883
Lorenz W, Benesch L, Barth H, Matejka E, Meyer R, Kusche J, Hutzel M, Werle E (1970) Fluorometric assay of histamine in tissues and body fluids: choice of the purification procedure and identification of the nanogram range. Z Anal Chem 252:94–98
Miller ThA (1983) Protective effects of prostaglandins against gastric mucosal damage: current knowledge and proposed mechanisms. Am J Physiol 245:G601–623
Ruoff HJ, Becker M (1982) Histamine-sensitive adenylate cyclase in human gastric mucosa: Cellular localization and interaction by PGE2, somatostatin and secretin. Agents and Actions 12:174–175
Ruoff HJ, Wagner M, Günther Ch, Maśliński S (1982) Adrenergic stimulation of isolated rat gastric mucosal cells. Effect on adenylate cyclase and14C-aminopyrine uptake. Naunyn Schmiedeberg's Arch Pharmacol 320:175–181
Sanders MJ, Amirian MA, Ayalon A, Soll AH (1983) Regulation of pepsinogen release from canine chief cells in primary monolayer culture. Am J Physiol 245:G641–646
Schepp W, Ruoff HJ, Maśliński S (1983) Aminopyrine accumulation of isolated parietal cells from the rat stomach. Effect of histamine and interaction with endogenous inhibitors. Arch Int Pharmacodyn Ther 265:293–308
Schepp W, Ruoff HJ, Miederer SE (1983) Cellular origin and release of intrinsic factor from isolated rat gastric mucosal cells. Biochim Biophys Acta 763:426–433
Soll AH (1981) Physiology of isolated canine parietal cells: receptors and effectors regulating function. Aus: Johnson LR (ed) Physiology of the gastrointestinal tract. Raven Press, New York, pp 673–691
Soll AH (1980) Secretagogue stimulation of14C aminopyrine accumulation by isolated canine parietal cells. Am J Physiol 238:G366-G375
Soll AH (1982) Potentiating interactions of gastric stimulants on14C aminopyrine accumulation by isolated canine parietal cells. Gastroenterology 83:216–223
Soll AH, Amirian DA, Thomas LP, Reedy TJ, Elashoff JD (1984) Gastrin receptors on isolated canine parietal cells. J Clin Invest 73:1434–1447
Soll AH, Park J, Thomas LP, Yamada T (1984) Release of somatostatin-like immunoreactivity from canine fundic mucosal cells in primary culture. Am J Physiol 247:G558-G566
Sonnenberg A, Berglindh T, Lewin MJM, Fischer JA, Sachs G, Blum A (1979) Stimulation of acid secretion in isolated gastric cells. In: Rosselin G, Fromageot P, Bonfils S (eds) Hormone receptors in digestion and nutrition. Elsevier/North Holland Biomedical Press, Amsterdam, pp 337–348
Thompson WJ, Jacobson ED, Rosenfeld GC (1982) A role of cyclic AMP in the gastrointestinal tract: receptor control of hydrogen ion secretion by mammalian gastric mucosa. In: Kebabian JW, Nathanson JA (eds) Handbook of Experimental Pharmacology. Springer, Berlin Heidelberg New York, pp 651–682
Author information
Authors and Affiliations
Additional information
Für diese Studie hat der Bundesminister für Jugend, Familie und Gesundheit den Forschungspreis zur Einschränkung und zum Ersatz von Tierversuchen zuerkannt. Die experimentellen Arbeiten wurden an der Medizinischen Poliklinik der Universität Bonn durchgeführt. Diese Studie wurde durch die Deutsche Forschungsgemeinschaft unterstützt. Wir danken B. Schiermeyer, R. Maier und W. Beer für ihre hervorragende Hilfe als Technische Assistenten
Rights and permissions
About this article
Cite this article
Schepp, W., Miederer, S.E., Ruoff, H.J. et al. Isolierte menschliche Magenschleimhautzellen — Untersuchungen physiologischer und pharmakologischer Regulationsmechanismen. Klin Wochenschr 64, 15–22 (1986). https://doi.org/10.1007/BF01721576
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01721576