Terminal Deoxynucleotidyltransferase Deficiency Decreases Autoimmune Disease in Diabetes-Prone Nonobese Diabetic Mice and Lupus-Prone MRL-Fas lpr Mice

Ian F. Robey, Melissa Peterson, Marc S. Horwitz, Dwight H. Kono, Thomas Stratmann, Argyrios N. Theofilopoulos, Nora Sarvetnick, Luc Teyton, Ann J. Feeney

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15 Citations (Scopus)

Abstract

The wide diversity of the T and B Ag receptor repertoires becomes even more extensive postneonatally due to the activity of TdT, which adds nontemplated N nucleotides to Ig and TCR coding ends during V(D)J recombination. In addition, complementarity-determining region 3 sequences formed in the absence of TdT are more uniform due to the use of short sequence homologies between the V, D, and J genes. Thus, the action of TdT produces an adult repertoire that is both different from, and much larger than, the repertoire of the neonate. We have generated TdT-deficient nonobese diabetic (NOD) and MRL-Faslpr mice, and observed a decrease in the incidence of autoimmune disease, including absence of diabetes and decreased pancreatic infiltration in NOD TdT-/- mice, and reduced glomerulonephritis and increased life span in MRL-Faslpr TdT-/- mice. Using tetramer staining, TdT-/- and TdT+/+ NOD mice showed similar frequencies of the diabetogenic BDC 2.5 CD4+ T cells. We found no increase in CD4+CD25+ regulatory T cells in NOD TdT-/- mice. Thus, TdT deficiency ameliorates the severity of disease in both lupus and diabetes, two very disparate autoimmune diseases that affect different organs, with damage conducted by different effector cell types. The neonatal repertoire appears to be deficient in autoreactive T and/or B cells with high enough affinities to induce end-stage disease. We suggest that the paucity of autoreactive specificities created in the N region-lacking repertoire, and the resultant protection afforded to the newborn, may be the reason that TdT expression is delayed in ontogeny.

Original languageEnglish (US)
Pages (from-to)4624-4629
Number of pages6
JournalJournal of Immunology
Volume172
Issue number7
DOIs
StatePublished - Apr 1 2004

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Inbred MRL lpr Mouse
Inbred NOD Mouse
DNA Nucleotidylexotransferase
Autoimmune Diseases
V(D)J Recombination
Complementarity Determining Regions
T-Lymphocytes
Regulatory T-Lymphocytes
Sequence Homology
Glomerulonephritis
B-Lymphocytes
Nucleotides
Staining and Labeling
Incidence
Genes

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

Cite this

Robey, I. F., Peterson, M., Horwitz, M. S., Kono, D. H., Stratmann, T., Theofilopoulos, A. N., ... Feeney, A. J. (2004). Terminal Deoxynucleotidyltransferase Deficiency Decreases Autoimmune Disease in Diabetes-Prone Nonobese Diabetic Mice and Lupus-Prone MRL-Fas lpr Mice. Journal of Immunology, 172(7), 4624-4629. https://doi.org/10.4049/jimmunol.172.7.4624

Terminal Deoxynucleotidyltransferase Deficiency Decreases Autoimmune Disease in Diabetes-Prone Nonobese Diabetic Mice and Lupus-Prone MRL-Fas lpr Mice. / Robey, Ian F.; Peterson, Melissa; Horwitz, Marc S.; Kono, Dwight H.; Stratmann, Thomas; Theofilopoulos, Argyrios N.; Sarvetnick, Nora; Teyton, Luc; Feeney, Ann J.

In: Journal of Immunology, Vol. 172, No. 7, 01.04.2004, p. 4624-4629.

Research output: Contribution to journalArticle

Robey, Ian F. ; Peterson, Melissa ; Horwitz, Marc S. ; Kono, Dwight H. ; Stratmann, Thomas ; Theofilopoulos, Argyrios N. ; Sarvetnick, Nora ; Teyton, Luc ; Feeney, Ann J. / Terminal Deoxynucleotidyltransferase Deficiency Decreases Autoimmune Disease in Diabetes-Prone Nonobese Diabetic Mice and Lupus-Prone MRL-Fas lpr Mice. In: Journal of Immunology. 2004 ; Vol. 172, No. 7. pp. 4624-4629.
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