Peptic Ulcer Research Today is a free monthly online journal that collates and summarizes the latest research about Peptic Ulcer, including details on helicobacter pylori, diet, symptoms, treatment.

Alterations in antral cytokine gene expression in peptic ulcer patients during ulcer healing and after Helicobacter pylori eradication.

Goll R, Cui G, Olsen T, Isaksen V, Gruber F, Husebekk A, Florholmen J

Institute of Clinical Medicine, Medical Faculty, University of Tromsø, Tromsø, Norway. rasmus.goll@unn.no

Earlier studies have shown that the antral immune response in Helicobacter pylori infection has a mixed Th1-Th2-T-regulatory profile. After eradication, a chronic inflammation remains in some patients, but a follow-up study with a comprehensive cytokine profile in has not previously been published. Twelve patients with H. pylori positive peptic ulcer disease (five antral and seven duodenal) were enrolled and cytokine gene expressions in antral biopsies were determined (1) at entry, (2) after resolving the ulcer with proton pump inhibitor (PPI) treatment and (3) after eradication. The second endoscopy was performed 4 weeks after ending the PPI treatment, and the third endoscopy was performed after a mean of 10 months after eradication. Inflammation was graded according to the updated Sydney system. Interleukin (IL)1beta, IL8, IL12A, IL18, TNFalpha, IFNgamma, IL4, IL6 and IL10 expression levels were analysed by real-time RT-PCR. Mixed mononuclear and neutrophil infiltrates were seen at entry and after ulcer healing. After eradication, low-grade mononuclear infiltrates were found. The cytokine expression levels after ulcer healing (H. pylori positive gastritis) were not significantly different from the levels at entry (ulcer). After eradication, attenuation of the Th1 cytokines except for TNFalpha and a persisting increase of IL4 levels were observed, whereas the IL10 expression was markedly reduced. The present data did not indicate a specific ulcer promoting cytokine gene regulation profile. However, after eradication a chronic low-grade inflammation was seen with reduced Th1, prolonged Th2 and disappearance of the T-regulatory response.

Published 6 December 2007 in Scand J Immunol, 67(1): 57-62.
Full-text of this article is available online (may require subscription).

© 2004-2008 Peptic Ulcer Research Today. All Rights Reserved.