The role of epitheliocytes secreting vascular endothelial growth factor, pancreatic polypeptide and glucagon in the development of oncological diseases of the stomach].

M A Osadchuk, D V Balashov, A M Osadchuk, I M Kvetnoĭ

Klinicheskaia meditsina 2012

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The present study included 104 patients with gastric disorders associated with Helicobacter pylori infection. Thirty of them presented with chronic atrophic gastritis (CAG), 30 with gastric ulcer (GU), 20 with adenomatous gastric polyps (AGP), and 24 with gastric cancer (GC). The control group was comprised of 12 practically healthy subjects. We elucidated the role of vascular endothelial growth factor (VEGF) and endocrine cells of gastric mucosa producing glucagon (GC) and pancreatic polypeptide (PPP) in the patients with GAG, GU, AGP and GC prior to and after the surgical intervention and following eradication therapy. It was shown that GAG, AGP, and GC were associated with the persistence of Helicobacter pylori infection and accompanied by hyperplasia of GC and PPP-secreting endocrine cells of gastric mucosa. GU was characterized by hypolasia of VEGF-secreting epithelial cells of the stomach and GC and PPP-secreting endocrine cells of gastric mucosa. The levels of VEGF, GC and PPP that directly or indirectly realize their pathological properties through H. pylori, Bcl-2, and proapoptotic protein BAX proved to be of high prognostic value as regards the evolvement and clinical course of gastric disorders associated with Helicobacter pylori infection. The study demonstrated that adequate eradication therapy in patients with H. pylori-associated diseases of the stomach significantly reduces the number of gastric cells secreting VEGF and has practically no effect on the amount of GC and PPP-producing endocrine cells of gastric mucosa.

Citation

M A Osadchuk, D V Balashov, A M Osadchuk, I M Kvetnoĭ. The role of epitheliocytes secreting vascular endothelial growth factor, pancreatic polypeptide and glucagon in the development of oncological diseases of the stomach]. Klinicheskaia meditsina. 2012;90(2):44-9