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  • Title: Allograft and autograft purging using immunotoxins in clinical bone marrow transplantation for hematologic malignancies.
    Author: Uckun FM, Myers DE.
    Journal: J Hematother; 1993; 2(2):155-63. PubMed ID: 7921971.
    Abstract:
    Bone marrow manipulation is an essential procedure when bone marrow transplantation (BMT) is used to improve the chances of survival among high risk patients with hematologic malignancies. Ex vivo purging of donor T cells effectively prevents a fatal reaction known as graft-versus-host disease in allogeneic BMT. Ex vivo purging of residual leukemia cells from autologous marrow can virtually eliminate the risk of autograft contamination. Immunotoxins are powerful and selective reagents for these tasks. However, ex vivo purging may be insufficient by itself to overcome the high risk of relapse that confronts many patients undergoing autologous BMT. Bone marrow manipulation may even present problems of its own, such as loss of the graft-versus-leukemia effect when allogeneic marrow is T cell depleted. We are currently evaluating immunotoxins containing pokeweed antiviral protein in clinical trials as in vivo purging reagents that may reduce the risk of relapse for BMT patients.
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