title: A preliminary study on humoral control of granulopoiesis in primary myelofibrosis and chronic granulocytic leukaemia.
abstract: The extent of the urine Colony Stimulating Factor (CSF/u), as well as the Colony Stimulating Activity (CSA) of peripheral-white blood cells (WBC) were evaluated in two groups of patients with myeloproliferative disorders, at the disease onset. The first patient group deals with Primary Myelofibrosis (PM), whereas the second group deals with Chronic Granulocytic Leukaemia (CGL). The Stanley technique was used for the above-mentioned assay, and in each group of patients either human or murine bone-marrow cell-suspensions were cultivated. In all patients with PM, a low CSF/u was detected, while patients with CGL showed a high CSF/u, regardless whether Ph1-positive or not. CSA of WBC in the PM-group was normal. In contrast, a significant low CSA in the CGL-group was noted. This fact could be of some importance in differentiating the two disorders at their onset.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D001853:Bone Marrow / Q000276:immunology; D001854:Bone Marrow Cells; D002455:Cell Division; D002999:Clone Cells; D006098:Granulocytes / Q000276:immunology*; D007951:Leukemia, Myeloid / Q000276:immunology*; D007962:Leukocytes / Q000276:immunology*; D051379:Mice; D008810:Mice, Inbred C57BL; D055728:Primary Myelofibrosis / Q000276:immunology*