Two patients (aged 52 and 44) received high-dose sequential chemotherapy followed by myeloablative therapy and autotransplantation as first line treatment of a stage III multiple myeloma with high plasmacell labelling index. Autograft was performed with peripheral blood cells collected after high-dose etoposide followed by rhGM-CSF continuous infusion. During this period very high numbers of circulating hemopoietic progenitors were detected in both patients. Prompt, complete and durable hematological recovery was observed after autograft with peripheral blood stem cells. Thus, we conclude that massively released progenitors after high-dose chemotherapy and rhGM-CSF include stem cells capable of marrow reconstitution.
GM-CSF-exposed peripheral blood progenitors as sole source of stem cells for autologous transplantation in two patients with multiple myeloma
PILERI, Alessandro;TARELLA, Corrado;BOCCADORO, Mario;
1990-01-01
Abstract
Two patients (aged 52 and 44) received high-dose sequential chemotherapy followed by myeloablative therapy and autotransplantation as first line treatment of a stage III multiple myeloma with high plasmacell labelling index. Autograft was performed with peripheral blood cells collected after high-dose etoposide followed by rhGM-CSF continuous infusion. During this period very high numbers of circulating hemopoietic progenitors were detected in both patients. Prompt, complete and durable hematological recovery was observed after autograft with peripheral blood stem cells. Thus, we conclude that massively released progenitors after high-dose chemotherapy and rhGM-CSF include stem cells capable of marrow reconstitution.
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