title: GM-CSF-exposed peripheral blood progenitors as sole source of stem cells for autologous transplantation in two patients with multiple myeloma.
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.
authors.affiliation: Divisione Universitaria di Ematologia, Ospedale, Molinette, Torino, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Pileri
authors.forename: C
authors.initials: C
authors.lastname: Tarella
authors.forename: M
authors.initials: M
authors.lastname: Bregni
authors.forename: M
authors.initials: M
authors.lastname: Boccadoro
authors.forename: S
authors.initials: S
authors.lastname: Siena
authors.forename: D
authors.initials: D
authors.lastname: Caracciolo
authors.forename: G
authors.initials: G
authors.lastname: Bonadonna
authors.forename: A M
authors.initials: AM
authors.lastname: Gianni
mesh_terms: D000328:Adult; D001804:Blood Transfusion, Autologous / Q000379:methods*; D003115:Colony-Stimulating Factors / Q000627:therapeutic use*; D005260:Female; D016178:Granulocyte-Macrophage Colony-Stimulating Factor; D006133:Growth Substances / Q000627:therapeutic use*; D018380:Hematopoietic Stem Cell Transplantation; D006412:Hematopoietic Stem Cells / Q000187:drug effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D009101:Multiple Myeloma / Q000628:therapy*
chemical_list: D003115:Colony-Stimulating Factors; D006133:Growth Substances; D016178:Granulocyte-Macrophage Colony-Stimulating Factor