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  • Title: [Immune response and tolerance to S. typhi Vi-antigen in T-lymphocyte depleted mice].
    Author: Fontalin LN, Prigozhina TB.
    Journal: Biull Eksp Biol Med; 1979 Jan; 87(1):33-6. PubMed ID: 310695.
    Abstract:
    Comparison of immune response to Vi-antigen in thymetomized letally irradiated and reconstituted with fetal liver cells mice and in control animals revealed no difference between the two groups. The absence of enchancement of antibody formation in T cell depleted mice favours thymic-independent regulation of immune response to optimal dose of Vi-antigen. The induction of cyclophosphamide tolerance to Vi-antigen did not depend on the presence of T cells: tolerogenic treatment was equally effective in T cell depleted mice and in control animals. Therefore cyclophosphamide tolerance was not due to the activation of T suppressors but to direct elimination of immunocompetent clones of B cells.
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