INDUCTION OF TYPE 1 DIABETES IN DIABETES-RESISTA NT (BB-DR) RATS
نویسندگان
چکیده مقاله:
The BioBreeding- Diabetes Prone (BB-DP) rat spontaneously develops an autoimmune diabetic syndrome that is dependent on the RT1 u Major Histocompatibility Complex (MHC) haplotype and homozygosity for an allele at the Lymphopenia (Lyp) locus. Lyp mutation is responsible for a peripheral T -lymphopenia. There are other genetic loci contributing to diabetes susceptibility in this strain. BB rats carrying wildtype Lyp alleles are not lymphopenic and are resistant to spontaneous diabetes (Diabetes R esistant [DR]). Our study shows that thymectomy and exposure to one sublethal dose of g-irradiation (TX-R) at 4 weeks of age result in the rapid development of insulitis followed by diabetes in 100% of DR rats. Administration of CD45RCCD4+ TCRcb+ T cells from unmanipulated syngeneic donors immediately after irradiation prevents the disease. Splenic T cells from TX -R induced diabetic animals adoptively transfer type 1 diabetes to T-deficient recipients. WAG, WF and LEW strains are resistant to TX -R induced insulitis/ diabetes. This novel model of TX -R induced diabetes in BB-DR rats can be used to identify environmental and cellular factors that are responsible for the initiation of antipancreatic autoimmunity.
منابع مشابه
induction of type 1 diabetes in diabetes-resista nt (bb-dr) rats
the biobreeding- diabetes prone (bb-dp) rat spontaneously develops an autoimmune diabetic syndrome that is dependent on the rt1 u major histocompatibility complex (mhc) haplotype and homozygosity for an allele at the lymphopenia (lyp) locus. lyp mutation is responsible for a peripheral t -lymphopenia. there are other genetic loci contributing to diabetes susceptibility in this strain. bb rats c...
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عنوان ژورنال
دوره 18 شماره 4
صفحات 365- 370
تاریخ انتشار 2005-11
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