ISSN:
1365-2036
Quelle:
Blackwell Publishing Journal Backfiles 1879-2005
Thema:
Medizin
Notizen:
Gastrimmune is an immunogenic form of gastrin. It raises in situ antibodies against two proliferative forms of gastrin: amidated and glycine-extended gastrin-17. It has been shown to have a therapeutic action in several in vivo tumour models. Following immunization, due to the complex equilibrium that exists between the antibodies and gastrin, it is not technically feasible to assay for free gastrin.〈section xml:id="abs1-2"〉〈title type="main"〉Aim:To determine the effect of Gastrimmune-induced antigastrin antibodies on acid secretion.〈section xml:id="abs1-3"〉〈title type="main"〉Method:A rat gastric fistula model was used. Animals (six per group) were immunized with a control immunogen or ascending doses of Gastrimmune. Acid output was measured following infusion of increasing doses of gastrin-17 and pentagastrin.〈section xml:id="abs1-4"〉〈title type="main"〉Results:Gastrimmune-induced antibodies significantly reduced gastrin-17-stimulated acid output compared to control animals (Gastrimmune at 200 μg/rat vs. control; acid output following 30 ng gastrin-17, 0.01 vs. 0.16, P 〈 0.001; following 120 ng gastrin-17, 0.022 vs. 0.29, P 〈 0.001).〈section xml:id="abs1-5"〉〈title type="main"〉Conclusions:Gastrimmune significantly inhibits gastrin-17-stimulated acid output. This biological assay suggests that the antigastrin antibodies effectively bind gastrin-17. In addition to its use as an antineoplastic agent, Gastrimmune may have a role as an acid-decreasing agent in oesophagogastric pathology.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1046/j.1365-2036.2001.01081.x
