IL12 treatment increases or decreases the severity of autoimmune thyroiditis in mice, depending on timing and strain

E. A. Stafford, S. L. Hill, N. R. Rose

Research output: Contribution to journalArticle

Abstract

Genetic susceptibility determines the severity of experimental autoimmune thyroiditis (EAT) in mice and may be related to the balance of Th1 or Th2 responses. rmIL12 treatment concurrent with immunizations of mouse thyroglobulin in complete Freund's adjuvant enhanced thyroid lesion prevalence and severity in genetically nonsusceptible Balb/c mice while genetically susceptible CBA/J mice showed only slightly enhanced disease but an accelerated infiltration of the thyroid by lymphocytes. IL12 treatment after immunization resulted in an increase in lesion prevalence and severity in Balb/c mice similar to the concurrent treatment group, but resulted in a decrease in lesion severity in CBA/J mice. In both strains, concurrent treatment produced a significant decrease in anti-mTg IgG1 production (a surrogate for a Th2 response), but Balb/c mice failed to demonstrate the significant increase in anti-mTg IgG2a (a Th1 response) seen in the CBA/J mice. Treatment after disease was established produced an increase in the ratio of anti-mTg IgG2a:IgG1 in Balb/c mice which correlated with the presence of lesions. In both strains and treatments, an increase in IgG2a:IgG2b correlated with lesion presence. These results demonstrate that IL12 can convert genetically nonsusceptible Balb/c mice to a susceptible phenotype.

Original languageEnglish (US)
JournalFASEB Journal
Volume12
Issue number5
StatePublished - Mar 20 1998

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Immunization
Autoimmune Thyroiditis
Interleukin-12
Immunoglobulin G
Lymphocytes
Freund's Adjuvant
Thyroglobulin
mice
Inbred CBA Mouse
Infiltration
Therapeutics
Thyroid Gland
Th1-Th2 Balance
immunization
Genetic Predisposition to Disease
thyroglobulin
Phenotype
adjuvants
lymphocytes

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry
  • Cell Biology

Cite this

IL12 treatment increases or decreases the severity of autoimmune thyroiditis in mice, depending on timing and strain. / Stafford, E. A.; Hill, S. L.; Rose, N. R.

In: FASEB Journal, Vol. 12, No. 5, 20.03.1998.

Research output: Contribution to journalArticle

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