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  • Title: Recombinant human glycosylated granulocyte colony-stimulating factor (rhG-CSF)-combined regimen for allogeneic bone marrow transplantation in refractory acute myeloid leukemia.
    Author: Takahashi S, Okamoto SI, Shirafuji N, Ikebuchi K, Tani K, Shimane M, Matsudaira T, Irie S, Tsuruta T, Matsuishi E.
    Journal: Bone Marrow Transplant; 1994 Mar; 13(3):239-45. PubMed ID: 7515298.
    Abstract:
    Recombinant human glycosylated G-CSF (rhG-CSF) may stimulate proliferation of myeloid leukemia cells and thereby increase their susceptibility to anti-cancer agents. By in vitro colony assay, the rhG-CSF-responsive NFS-60 leukemic cell clones are more effectively killed by Ara C in the presence of rhG-CSF than in the absence of rhG-CSF, while the killing of the rhG-CSF-unresponsive HL-60 cell clones is unaffected by rhG-CSF. Leukemia cell colony forming units (L-CFU) derived from most AML patients demonstrate similar results to those of the NFS-60 cell clone when treated in vitro. Encouraged by these in vitro results, we used rhG-CSF as a component of a conditioning regimen for 15 relapsed AML patients who were receiving allogeneic BMT. The patients were conditioned with total body irradiation (TBI) and high-dose Ara C. rhG-CSF was infused continuously at a dose of 5 micrograms/kg/day from 24 h before the beginning of TBI to the end of Ara C therapy. Proliferation of the leukemia cells in vivo in response to rhG-CSF was confirmed in 7 of 14 patients tested and the combined use of rhG-CSF had no additional adverse effects. After BMT, four patients died of non-leukemic causes and three patients had leukemic relapse: the other eight patients have remained disease-free for 200-1600 (median 417) days. The actuarial probabilities of relapse and disease-free survival (DFS) at 4.4 years after BMT were 43.2% and 41.7%, respectively.(ABSTRACT TRUNCATED AT 250 WORDS)
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