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DNA immunization to prevent autoimmune diabetes
Bryan Coon, … , J. Lindsay Whitton, Matthias G. von Herrath
Bryan Coon, … , J. Lindsay Whitton, Matthias G. von Herrath
Published July 15, 1999
Citation Information: J Clin Invest. 1999;104(2):189-194. https://doi.org/10.1172/JCI7209.
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Article

DNA immunization to prevent autoimmune diabetes

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Abstract

Mice expressing lymphocytic choriomeningitis virus nucleoprotein (LCMV-NP) as a transgene in their β cells develop insulin-dependent diabetes mellitus (IDDM) only after LCMV infection. Inoculation of plasmid DNA encoding the insulin B chain reduced the incidence of IDDM by 50% in this model. The insulin B-chain DNA vaccination was effective through induction of regulatory CD4 lymphocytes that react with the insulin B chain, secrete IL-4, and locally reduce activity of LCMV-NP–autoreactive cytotoxic T lymphocytes in the pancreatic draining lymph node. In contrast, similar vaccination with plasmids expressing the LCMV viral (“self”) protein did not prevent IDDM, because no such regulatory cells were induced. Thus, DNA immunization with plasmids expressing self-antigens might constitute a novel and attractive therapeutic approach to prevent autoimmune diseases, if the antigens are carefully preelected for an ability to induce regulatory lymphocytes in vivo.

Authors

Bryan Coon, Ling-Ling An, J. Lindsay Whitton, Matthias G. von Herrath

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LCMV-specific CTLs are reduced following administration of LCMV-NP but n...

LCMV-specific CTLs are reduced following administration of LCMV-NP but not after administration of insulin B


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