Interaction of Helicobacter pylori-induced follicular gastritis and autoimmune gastritis in BALB/c mice with post-thymectomy autoimmune gastritis
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Neonatally thymectomized BALB/c mice with autoimmune gastritis received orally administered H. pylori and were examined histologically and serologically. The T-helper (Th)1/Th2 immune balance in the microenvironment of the stomach was evaluated by reverse-transcriptase-polymerase chain reaction (RT-PCR) for interferon (IFN)-Γ and interleukin (IL)-4.
Uninfected mice showed disappearance of parietal cells, and upregulation of IFN-Γ, but no germinal center formation. The infected neonatally thymectomized mice showed follicular gastritis, preserved parietal cells, decreased serum anti-parietal antibodies, and upregulation of IL-4 and IFN-Γ.
H. pylori infection changes the microenvironment of the gastric mucosa by inducing a Th2 immune response in addition to a Th1 response, and regresses autoimmune gastritis in neonatally thymectomized BALB/c mice.
- Interaction of Helicobacter pylori-induced follicular gastritis and autoimmune gastritis in BALB/c mice with post-thymectomy autoimmune gastritis
Journal of Gastroenterology
Volume 38, Issue 12 , pp 1131-1137
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- autoimmune gastritis
- Helicobacter pylori
- Th1/2 immune balance
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- Author Affiliations
- A1. Department of Endoscopic Medicine and Gastroenterology, Kyoto University Hospital, Kyoto, Japan
- A2. Third Department of Internal Medicine, Kansai Medical University, Moriguchi, 570-8507, Japan
- A3. Department of Pathology and Biology of Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan