T Cell Receptor Genotype and Ubash3a Determine Susceptibility to Rat Autoimmune Diabetes.
T Cell Receptor Genotype and Ubash3a Determine Susceptibility to Rat Autoimmune Diabetes.
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T细胞受体基因型和Ubash3a决定大鼠自身免疫性糖尿病的易感性
DOI:
10.3390/genes12060852
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发表时间:
2021-06-01
期刊:
影响因子:
3.5
通讯作者:
Pierce BG
中科院分区:
文献类型:
--
作者:
Mordes JP;Cort L;Liu Z;Eberwine R;Blankenhorn EP;Pierce BG
Genetic analyses of human type 1 diabetes (T1D) have yet to reveal a complete pathophysiologic mechanism. Inbred rats with a high-risk class II major histocompatibility complex (MHC) haplotype (RT1B/Du) can illuminate such mechanisms. Using T1D-susceptible LEW.1WR1 rats that express RT1B/Du and a susceptible allele of the Ubd promoter, we demonstrate that germline knockout of Tcrb-V13S1A1, which encodes the Vβ13a T cell receptor β chain, completely prevents diabetes. Using the RT1B/Du-identical LEW.1W rat, which does not develop T1D despite also having the same Tcrb-V13S1A1 β chain gene but a different allele at the Ubd locus, we show that knockout of the Ubash3a regulatory gene renders these resistant rats relatively susceptible to diabetes. In silico structural modeling of the susceptible allele of the Vβ13a TCR and its class II RT1u ligand suggests a mechanism by which a germline TCR β chain gene could promote susceptibility to T1D in the absence of downstream immunoregulation like that provided by UBASH3A. Together these data demonstrate the critical contribution of the Vβ13a TCR to the autoimmune synapse in T1D and the regulation of the response by UBASH3A. These experiments dissect the mechanisms by which MHC class II heterodimers, TCR and regulatory element interact to induce autoimmunity.
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影响因子:
7.7
作者:
Ge, Yan;Paisie, Taylor K.;Concannon, Patrick
通讯作者:
Concannon, Patrick
影响因子:
7.7
作者:
Concannon P;Onengut-Gumuscu S;Todd JA;Smyth DJ;Pociot F;Bergholdt R;Akolkar B;Erlich HA;Hilner JE;Julier C;Morahan G;Nerup J;Nierras CR;Chen WM;Rich SS;Type 1 Diabetes Genetics Consortium
通讯作者:
Type 1 Diabetes Genetics Consortium
影响因子:
32.4
作者:
Adams JJ;Narayanan S;Liu B;Birnbaum ME;Kruse AC;Bowerman NA;Chen W;Levin AM;Connolly JM;Zhu C;Kranz DM;Garcia KC
通讯作者:
Garcia KC
DOI:
10.1186/cc2955
发表时间:
2004-10
期刊:
Critical care (London, England)
影响因子:
--
作者:
Bewick V;Cheek L;Ball J
通讯作者:
Ball J
影响因子:
32.4
作者:
Broughton, Sophie E.;Petersen, Jan;Rossjohn, Jamie
通讯作者:
Rossjohn, Jamie