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Genetic Control of Autoimmune Diabetes in the Nod Mouse

Genetic Control of Autoimmune Diabetes in the Nod Mouse The nonobese diabetic (NOD) mouse is a model of human autoimmune insulin­ dependent diabetes mellitus. The NOD mouse also serves as a model for studying complex polygenic diseases because at least fourteen different loci are linked to disease development. The first ldd locus recognized, lddl, is linked to the major histocompatibility complex (MHC), and its inheritance and expression are a paradigm for the other non-MHC Idd genes. The NOD allele at lddl does not behave as a recessive diabetes susceptibility gene, as it was originally thought to be, but instead it acts as a dominant gene with varying degrees of penetrance for the phenotypes of insulitis, a prediabetic inflammatory lesion, and spontaneous diabetes. MHC congenic strains of mice have shown that the NOD MHC is essential but, by itself, not sufficient for developing diabetes. The contributions of non-MHC Idd loci have also been assessed with NOD congenic strains derived by replacing NOD-specific chromosomal segments with those from diabetes­ resistant strains of mice. While only partial protection from disease is provided by resistance alleles at single non-MHC Iddloci, epistatic interaction between two of the loci, Jdd3 and IddlO, produced nearly complete protection from diabetes. Identifying Idd genes and defining http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annual Review of Immunology Annual Reviews

Genetic Control of Autoimmune Diabetes in the Nod Mouse

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Publisher
Annual Reviews
Copyright
Copyright 1995 Annual Reviews. All rights reserved
Subject
Review Articles
ISSN
0732-0582
eISSN
1545-3278
DOI
10.1146/annurev.iy.13.040195.001143
pmid
7612220
Publisher site
See Article on Publisher Site

Abstract

The nonobese diabetic (NOD) mouse is a model of human autoimmune insulin­ dependent diabetes mellitus. The NOD mouse also serves as a model for studying complex polygenic diseases because at least fourteen different loci are linked to disease development. The first ldd locus recognized, lddl, is linked to the major histocompatibility complex (MHC), and its inheritance and expression are a paradigm for the other non-MHC Idd genes. The NOD allele at lddl does not behave as a recessive diabetes susceptibility gene, as it was originally thought to be, but instead it acts as a dominant gene with varying degrees of penetrance for the phenotypes of insulitis, a prediabetic inflammatory lesion, and spontaneous diabetes. MHC congenic strains of mice have shown that the NOD MHC is essential but, by itself, not sufficient for developing diabetes. The contributions of non-MHC Idd loci have also been assessed with NOD congenic strains derived by replacing NOD-specific chromosomal segments with those from diabetes­ resistant strains of mice. While only partial protection from disease is provided by resistance alleles at single non-MHC Iddloci, epistatic interaction between two of the loci, Jdd3 and IddlO, produced nearly complete protection from diabetes. Identifying Idd genes and defining

Journal

Annual Review of Immunology – Annual Reviews

Published: Apr 1, 1995

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