Control of Autoimmune Diabetes in NOD Mice by GAD Expression or Suppression in β Cells
- 14 May 1999
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 284 (5417), 1183-1187
- https://doi.org/10.1126/science.284.5417.1183
Abstract
Glutamic acid decarboxylase (GAD) is a pancreatic β cell autoantigen in humans and nonobese diabetic (NOD) mice. β Cell–specific suppression of GAD expression in two lines of antisense GAD transgenic NOD mice prevented autoimmune diabetes, whereas persistent GAD expression in the β cells in the other four lines of antisense GAD transgenic NOD mice resulted in diabetes, similar to that seen in transgene-negative NOD mice. Complete suppression of β cell GAD expression blocked the generation of diabetogenic T cells and protected islet grafts from autoimmune injury. Thus, β cell–specific GAD expression is required for the development of autoimmune diabetes in NOD mice, and modulation of GAD might, therefore, have therapeutic value in type 1 diabetes.Keywords
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