Publication Date:
1990-07-20
Description:
The I-E molecule of the major histocompatibility complex (MHC) can prevent the spontaneous development of diabetes in nonobese diabetic (NOD) mice. The mechanism of this protection has been investigated by breeding wild-type and promoter-mutated E kappa alpha transgenes onto the NOD genetic background. Animals carrying the various mutated transgenes expressed I-E on different subsets of immunocompetent cells, and thus cells important for the I-E protective effect could be identified. Although the wild-type transgene prevented the infiltration of lymphocytes into pancreatic islets, none of the mutants did. However, all of the transgenes could mediate the intrathymic elimination of T cells bearing antigen receptors with variable regions that recognize I-E. Thus, the I-E molecule does not protect NOD mice from diabetes simply by inducing the deletion of self-reactive T cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bohme, J -- Schuhbaur, B -- Kanagawa, O -- Benoist, C -- Mathis, D -- New York, N.Y. -- Science. 1990 Jul 20;249(4966):293-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratoire de Genetique Moleculaire des Eucaryotes du CNRS, Faculte de Medecine, Strasbourg, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2115690" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Clone Cells
;
Crosses, Genetic
;
Diabetes Mellitus, Experimental/*immunology/prevention & control
;
Genes, MHC Class II
;
Histocompatibility Antigens Class II/genetics/*immunology
;
Islets of Langerhans/immunology
;
*Major Histocompatibility Complex
;
Mice
;
Mice, Mutant Strains
;
Mice, Transgenic
;
Mutation
;
Promoter Regions, Genetic
;
Receptors, Antigen, T-Cell/genetics
;
T-Lymphocytes/*immunology
;
Thymus Gland/immunology
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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