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Related Experiment Videos

Regulation of experimental allergic thyroiditis.

Y Eishi1, P McCullagh

  • 1Department of Immunology, John Curtin School of Medical Research, Australian National University, Canberra.

Scandinavian Journal of Immunology
|June 1, 1988
PubMed
Summary

Previous immunization against thyroglobulin prevents experimental allergic thyroiditis (EAT) in rats. Transferring spleen cells from sensitized donors also confers resistance, even without prolonged cell survival.

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Area of Science:

  • Immunology
  • Endocrinology
  • Autoimmunity

Background:

  • Experimental allergic thyroiditis (EAT) is an autoimmune condition affecting the thyroid gland.
  • Thyroglobulin is a key autoantigen in EAT induction.

Purpose of the Study:

  • To investigate the effect of prior immunization with thyroglobulin on the susceptibility to EAT.
  • To determine if adoptive transfer of immune cells can confer resistance to EAT.

Main Methods:

  • Rats were immunized with thyroglobulin.
  • Subsequent challenge with a standard EAT sensitization protocol was performed.
  • Spleen cells from sensitized donors were transferred to neonatal rats.

Main Results:

  • Prior immunization with thyroglobulin 5 weeks before sensitization conferred strong resistance to EAT induction.

Related Experiment Videos

  • Neonatal inoculation with spleen cells from thyroglobulin-sensitized donors also conferred resistance.
  • Irradiated spleen cells conferred resistance, suggesting prolonged cell survival is not necessary.

    • Conclusions:

    • Pre-existing immunity to thyroglobulin protects against EAT.
    • Adoptive transfer of immune cells can induce tolerance or resistance to EAT.
    • Cellular immunity, not necessarily long-term cell engraftment, mediates this resistance.