Islet lymphocyte subsets in male and female NOD mice are qualitatively similar but quantitatively distinct

Ellen F. Young, Paul R. Hess, Larry W. Arnold, Roland Tisch, Jeffrey A Frelinger

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Islet-infiltrating lymphocytes of individual male and female non-obese diabetic (NOD) mice were examined with the purpose of determining the differences that lead to a predominance of diabetes in female versus males NOD mice. When normalized for the amount of islet lymphocytes recovered, the infiltrating lymphocytes of female NOD mice were indistinguishable from those of male NOD mice. The only observed difference was that islet inflammation progressed at an increased rate in female compared to male NOD mice. There was no difference in the composition of islet infiltrates in male and female NOD mice. Unexpectedly, the ratio of CD4 :CD8 T cells was tightly controlled in the islets throughout diabetogenesis. The frequency of IL-4 CD4 T cells started high but quickly fell to 3% of the population that was maintained with increasing inflammation. A significant portion of the CD8 T cells were islet-specific glucose-6-phosphatase catalytic subunit-related protein specific in both male and female NOD mice and this population was antigen experienced and increased at high levels of islet inflammation. Surprisingly, a large pool of antigen inexperienced nave T cells was detected in the islets. We conclude the underlying immunological processes in both male and female NOD mice are similar while the rates differ and the presence of nave T cell in the islets may contribute to epitope spreading.

Original languageEnglish (US)
Pages (from-to)678-691
Number of pages14
JournalAutoimmunity
Volume42
Issue number8
DOIs
StatePublished - Nov 2009
Externally publishedYes

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Inbred NOD Mouse
Lymphocyte Subsets
T-Lymphocytes
Lymphocytes
Inflammation
Antigens
Glucose-6-Phosphatase
CD4-CD8 Ratio
Interleukin-4
Population
Epitopes
Catalytic Domain

Keywords

  • Autoimmunity
  • FoxP3
  • IGRP
  • IL-4
  • Naïve T-cell

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

Cite this

Islet lymphocyte subsets in male and female NOD mice are qualitatively similar but quantitatively distinct. / Young, Ellen F.; Hess, Paul R.; Arnold, Larry W.; Tisch, Roland; Frelinger, Jeffrey A.

In: Autoimmunity, Vol. 42, No. 8, 11.2009, p. 678-691.

Research output: Contribution to journalArticle

Young, Ellen F. ; Hess, Paul R. ; Arnold, Larry W. ; Tisch, Roland ; Frelinger, Jeffrey A. / Islet lymphocyte subsets in male and female NOD mice are qualitatively similar but quantitatively distinct. In: Autoimmunity. 2009 ; Vol. 42, No. 8. pp. 678-691.
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