Suppressor T cells and self-tolerance. Active suppression required for normal regulation of anti-erythrocyte autoantibody responses in spleen cells from nonautoimmune mice
| Autor: | R D Miller, C E Calkins |
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| Rok vydání: | 1988 |
| Předmět: | |
| Zdroj: | The Journal of Immunology. 140:3779-3785 |
| ISSN: | 1550-6606 0022-1767 |
| DOI: | 10.4049/jimmunol.140.11.3779 |
| Popis: | Spleen cells from young, nonautoimmune strains of mice cultured with syngeneic E do not develop a significant anti-mouse E response in vitro, consistent with a state of self-tolerance to this Ag. In order to study the role of active suppression in regulating mouse RBC-(MRBC) specific cells in nonautoimmune cell populations, the effect of depleting T cell subsets on the generation of anti-MRBC autoantibodies by nonautoimmune spleen cells was determined. Spleen cells from young BALB/c and C57BL/6 mice were found to generate significant numbers of IgM and IgG anti-MRBC autoantibody-forming cells in culture with MRBC after depletion of Ly-2+ cells by anti-Ly-2 and C treatment. The response which develops is Ag dependent, Ag specific, and dependent upon L3T4+ Th. The magnitude and isotype of this response is similar to the anti-MRBC response generated by spleen cells from 12-mo-old, autoimmune NZB mice and young NZB mice also treated to remove Ly-2+ cells. Addition of isolated Ly-2+ T cells, but not L3T4+ or Ly-2- T cells, to spleen cells depleted of Ly-2+ cells restores apparently normal regulation of the anti-MRBC response in vitro. These data demonstrate that control of a specific autoantibody response to MRBC by nonautoimmune spleen cell populations requires active regulation by an Ly-2+ T cell subset. |
| Databáze: | OpenAIRE |
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