Publication Date:
1987-07-17
Description:
A polygenic basis for susceptibility to insulin-dependent diabetes in nonobese diabetic (NOD) mice has been established by outcross to a related inbred strain, nonobese normal (NON). Analysis of first and second backcross progeny has shown that at least three recessive genes are required for development of overt diabetes. One, Idd-1s, is tightly linked to the H-2K locus on chromosome 17; another, Idd-2s, is localized proximal to the Thy-1/Alp-1 cluster on chromosome 9. Segregation of a third, Idd-3s, could be shown in a second backcross. Neither Idd-1s nor Idd-2s could individually be identified as the locus controlling insulitis; leukocytic infiltrates in pancreas were common in most asymptomatic BC1 mice. Both F1 and BC1 mice exhibited the unusually high percentage of splenic T lymphocytes characteristic of NOD, suggesting dominant inheritance of this trait. The polygenic control of diabetogenesis in NOD mice, in which a recessive gene linked to the major histocompatibility complex is but one of several controlling loci, suggests that similar polygenic interactions underlie this type of diabetes in humans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Prochazka, M -- Leiter, E H -- Serreze, D V -- Coleman, D L -- AM 14461/AM/NIADDK NIH HHS/ -- AM 27722/AM/NIADDK NIH HHS/ -- AM 36175/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1987 Jul 17;237(4812):286-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2885918" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Chromosome Mapping
;
Diabetes Mellitus, Type 1/*genetics/immunology
;
*Genes, Recessive
;
Islets of Langerhans/immunology
;
Mice
;
Mice, Inbred Strains
;
Mice, Mutant Strains
;
Polymorphism, Genetic
;
Polymorphism, Restriction Fragment Length
;
T-Lymphocytes/physiology
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
