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Expression and regulation of anti-thyroid autoimmunity directed against cultivated rat thyrocytes
1Developmental Physiology Group, John Curtin School of Medical Research, Australian National University, Canberra.
Lymph node cells from DA rats that had been exposed in utero to 131I in doses sufficient to interrupt thyroid development, attacked monolayers of normal syngeneic thyrocytes in vitro. Lymph node cells from normal DA rats did not damage syngeneic thyrocyte monolayers. Thyrocytes could be protected from damage provided they had been incubated with lymph node cells from normal syngeneic rats before the introduction of lymph node cells from 131I exposed rats. Spleen cells from both 131I exposed and normal rats attacked syngeneic thyrocytes. It is concluded that normal rats possess cells capable of downregulating anti-thyroid autoimmunity.
Lymph node cells from DA rats that had been exposed in utero to 131I in doses sufficient to interrupt thyroid development, attacked monolayers of normal syngeneic thyrocytes in vitro. Lymph node cells from normal DA rats did not damage syngeneic thyrocyte monolayers. Thyrocytes could be protected from damage provided they had been incubated with lymph node cells from normal syngeneic rats before the introduction of lymph node cells from 131I exposed rats. Spleen cells from both 131I exposed and normal rats attacked syngeneic thyrocytes. It is concluded that normal rats possess cells capable of downregulating anti-thyroid autoimmunity.