K R Oettel

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Clinical and experimental data suggest a role for the immune response in preventing leukemic relapses following allogeneic bone marrow transplantation the graft-versus-leukemia (GVL) effect. In the context of an allogeneic BMT, a number of different immune mechanisms mediated by donor cells may be responsible for the GVL effect. We have approached this(More)
Eleven patients receiving weekly cycles of therapy with recombinant interleukin-2 (IL-2) were evaluated with a sensitive limiting dilution analysis to determine lymphokine-activated killer (LAK) cell precursor frequencies in peripheral blood lymphocytes. An increase in LAK precursor frequency above baseline was suggested by day 6 of this protocol and was(More)
Human V gamma 9/V delta 2 T cells, the major subset of gamma/delta T cells in peripheral blood of adults, mediate proliferative and cytotoxic responses to Daudi Burkitt's lymphoma cells without previous in vitro exposure to Daudi. Our experiments show that some gamma/delta T cells coexpressing V gamma 9 and V delta 1 genes also react to Daudi cells in(More)
Immunocompetent cells in bone marrow allografts have been associated with a graft-versus-leukemia (GVL) effect. To further characterize effector mechanisms that may be involved in this GVL phenomenon, we have previously established an in vitro model to identify allogeneic T-cell clones that selectively mediate cytotoxicity against a patient's leukemic(More)
Transplantation of immunocompetent cells present within allogeneic bone marrow has been associated with the elimination of residual host leukemia, both in animal tumor models and in patients receiving marrow transplants for leukemia. This observation has been called the "graft-versus-leukemia effect." We have attempted to study this phenomenon in vitro by(More)
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