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  • Title: Generation of effector cells from T cell subsets. I. Similar requirements for Lyt T cell subpopulations in the generation of alloreactive and H-2 restricted killer cells.
    Author: Simon MM, Koszinowski UH.
    Journal: Immunobiology; 1979 Aug; 156(1-2):96-109. PubMed ID: 232075.
    Abstract:
    Lyt T cell subsets involved in the generation of H-2 restricted and alloreactive cytotoxic effector cells were analysed using anti Lyt antisera. Our data show that Lyt 1, 2, 3+ T cells are required for the induction of primary and secondary H-2 restricted and TNP-specific killer cells. In contrast, primary and secondary H-2 restricted and virus-specific T effector cells were obtained from selected Lyt 2, 3+ T cell populations and were not dependent on the presence of Lyt 1, 2, 3+ T cells. Allogeneic responses to selected K, I, or D region differences were obtained only in the presence of Lyt 1, 2, 3+ T cells; yet alloreactive killer cells were effectively generated from selected Lyt 2, 3+ T cell popluations deprived of Lyt 1, 2, 3+ T cells, when responder and stimulator cells differed at either K + D, K + I, I and D regionre is no qualitative difference between alloreactive and H-2 restricted cytotoxic responses in their requirements for particular Lyt T cell subsets. The findings indicate that the number of different antigenic determinants rather than their association with MHC self determinants is critical for the requirement of Lyt 1, 2, 3+ T cells during the sensitization phase.
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