CD4+ T cells, but not CD8+ T cells, are required for the development of experimental autoimmune gastritis
- 1 March 1998
- journal article
- research article
- Published by Wiley in Immunology
- Vol. 93 (3), 405-408
- https://doi.org/10.1046/j.1365-2567.1998.00436.x
Abstract
Murine autoimmune gastritis, induced by neonatal thymectomy, is characterized by a mononuclear infiltrate within the gastric mucosa, loss of parietal and zymogenic cells and circulating autoantibodies to the gastric H/K ATPase. The infiltrate contains both CD4+ and CD8+ T cells. Here we have investigated the roles of CD4+ and CD8+ T cells in the development of gastritis by in vivo treatment with depleting rat anti-CD4 and anti-CD8 monoclonal antibodies. Depletion of CD4+ T cells decreased the incidence of gastric mononuclear infiltrates from 63% (5/8), observed in normal rat immunoglobulin G (IgG)-injected mice, to 8% (1/12) and also abolished the production of antigastric autoantibodies. In contrast, depletion of CD8+ T cells did not reduce the incidence of gastritis. The absence of CD8+ T cells in the infiltrate of the stomach of anti-CD8+-treated mice was confirmed by immunocytochemistry. These results argue that neonatal thymectomy-induced autoimmune gastritis is mediated by CD4+ T cells and that CD8+ T cells do not play a significant role in the development of the gastric lesion.Keywords
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