Nov 1, 1975

Graft versus leukemia. VI. Adoptive immunotherapy in combination with chemoradiotherapy for spontaneous leukemia-lymphoma in AKR mice

Journal of the National Cancer Institute
M M BortinG E Rodey

Abstract

A three-step treatment plan incorporating adoptive immunotherapy and chemoradiotherapy was used to treat AKR (H-2k) mice bearing spontaneous leukemia-lymphoma (SLL). 1) Leukemic mice were treated with chemoradiotherapy for immunosuppression and leukemia cytoreduction. 2) To introduce a graft-versus-leukemia reaction against residual malignant cells, the immunosuppressed AKR mice were given immunocompetent cells from H-2 mismatched DBA/2 (H-2d) donors. 3) To "rescue" the AKR hosts from incipient graft-versus-host disease, the mismatched DBA/2 cells were killed with combination chemotherapy, and cells from allogeneic H-2 matched RF (H-2k) donors were administered to restore hematopoiesis. Leukemic AKR mice thus treated had significant prolongation of their median survival time and a higher 60-day survival rate post treatment than did untreated controls, chemoradiotherapy controls, or control mice that received chemoradiotherapy plus cells from syngeneic donors. Therefore, adoptive immunotherapy may be useful as an adjunct to conventional therapy for treatment of SLL in AKR mice.

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Mentioned in this Paper

Graft-vs-Host Disease
Graft Vs Host Reaction
Belustine
Hairy Cell Leukemia
Leukemia, Experimental
H2-K1
Amphotericin B Colloidal Dispersion
Normal Serum Globulin Therapy
Leukemia
Cyclophosphamide, (S)-Isomer

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