four distinct haemopoietic growth factors can stimulate the formation of mature cells from this population , although the proportions of neutrophils and/or macrophages produced varied depending on the growth factor employed : interleukin 3 ( il-3 ) and granulocyte/macrophage colony-stimulating factor ( gm-csf ) stimulated the formation of colonies containing both neutrophils and macrophages ;
C0079490
haemopoietic
C0018284
growth factor