The effect of human recombinant granulocyte-macrophage colony stimulating factor on the proliferation and differentiation of myeloid progenitors in congenital agranulocytosis marrow cells.
Congenital agranulocytosis is a rare and frequently fatal infantile disease characterized by recurrent bacterial infections, persistent absence of neutrophils in the peripheral blood and an arrest of myeloid maturation at the promyelocyte/myelocyte stage. The effect of human recombinant Granulocyte-Macrophage colony stimulating factor (GM-CSF) alone and in combination with retinoic acid, dimethylsulphoxide or actinomycin-D on the proliferation and differentiation of bone marrow cells from a child with congenital agranulocytosis was studied. Cells were treated at a concentration of 1 x 10(5) per ml in in-vitro culture with GM-CSF alone and in combination with retinoic acid, dimethylsulphoxide or actinomycin-D for 7 days at 37 degrees C in humidified incubator containing 5% CO2 in air. GM-CSF showed a profound stimulatory effect on the proliferation of myeloid progenitors from the child bone marrow and restored colony numbers in the retinoic acid-, dimethylsulphoxide- and actinomycin-D-inhibited cultures.
Hassan
H T
HT
Department of Haematological Research, University of Cambridge, Clinical School, England, UK.
Rees
J K
JK
D000380:Agranulocytosis / Q000151:congenital / Q000473:pathology*; D002454:Cell Differentiation / Q000187:drug effects; D002455:Cell Division / Q000187:drug effects; D003115:Colony-Stimulating Factors / Q000494:pharmacology*; D003609:Dactinomycin / Q000494:pharmacology; D004121:Dimethyl Sulfoxide / Q000494:pharmacology; D005260:Female; D016178:Granulocyte-Macrophage Colony-Stimulating Factor; D006133:Growth Substances / Q000494:pharmacology*; D006412:Hematopoietic Stem Cells / Q000166:cytology / Q000187:drug effects*; D006801:Humans; D007223:Infant; D011994:Recombinant Proteins / Q000494:pharmacology; D014212:Tretinoin / Q000494:pharmacology
D003115:Colony-Stimulating Factors; D006133:Growth Substances; D011994:Recombinant Proteins; D003609:Dactinomycin; D014212:Tretinoin; D016178:Granulocyte-Macrophage Colony-Stimulating Factor; D004121:Dimethyl Sulfoxide