In vitro growth response to G-CSF and GM-CSF by bone marrow cells of patients with acute myeloid leukemia.
The in vitro growth response of bone marrow and blood cells to granulocyte/macrophage colony-stimulating factor (GM-CSF) and granulocyte colony-stimulating factor (G-CSF) was studied in 18 acute myeloid leukemia (AML) patients using semisolid and suspension cultures. In 80% of the cases growth of leukemic progenitor cells was stimulated by GM-CSF and/or G-CSF, as judged by colony or cluster formation. In acute promyelocytic leukemia [t(15;17)], G-CSF stimulated and maintained the leukemic progenitors only transiently but fully stimulated the residual normal granulocyte/macrophage colony-forming units (CFU-GM). In some cases of M2 and M4 leukemia, G-CSF enhanced markedly the production of mature but cytochemically abnormal neutrophils. In some cases of M1 leukemia, neither CSF stimulated leukemic progenitors but instead stimulated only residual normal granulopoiesis. Spontaneous colony formation was observed in 20% of cases and was correlated with high-grade leukemic growth in vivo and a poor response to chemotherapy. The differing effects of the CSFs upon leukemic cells and residual normal granulopoiesis may have some implications for the clinical use of GM-CSF and G-CSF to overcome infectious complications.
Jinnai
I
I
Department of Hematology, Nagasaki University, School of Medicine, Japan.
D000293:Adolescent; D000328:Adult; D000469:Alkaline Phosphatase / Q000032:analysis; D001853:Bone Marrow / Q000187:drug effects / Q000473:pathology*; D002455:Cell Division / Q000187:drug effects; D002478:Cells, Cultured; D002648:Child; D002871:Chromosome Banding; D003115:Colony-Stimulating Factors / Q000494:pharmacology*; D004347:Drug Interactions; D005260:Female; D016179:Granulocyte Colony-Stimulating Factor; D016178:Granulocyte-Macrophage Colony-Stimulating Factor; D006133:Growth Substances / Q000494:pharmacology*; D006412:Hematopoietic Stem Cells / Q000187:drug effects / Q000473:pathology*; D006801:Humans; D007223:Infant; D007621:Karyotyping; D007700:Kinetics; D015470:Leukemia, Myeloid, Acute / Q000235:genetics / Q000473:pathology*; D008297:Male; D008875:Middle Aged
D003115:Colony-Stimulating Factors; D006133:Growth Substances; D016179:Granulocyte Colony-Stimulating Factor; D016178:Granulocyte-Macrophage Colony-Stimulating Factor; D000469:Alkaline Phosphatase