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To investigate possible mechanisms of growth factor expression in acute myeloid leukemia, genes for granulocyte macrophage colony-stimulating factor (GM-CSF) were analyzed by Southern blots in 20 patients, for M-CSF in 13, for interleukin-6 (IL-6) in 14, for IL-6 receptor in 14 and for G-CSF in five patients. Only in one patient a complex rearrangement of(More)
Constitutive secretion of interleukin-6 (IL-6) has been proposed as a mechanism of transformation in multiple myeloma. We therefore studied 15 patients with this disease for rearrangements of the IL-6 and IL-6 receptor genes. Two patients with altered IL-6 genes were identified. Chromosome analysis revealed aberrations of chromosome 7, where the IL-6 gene(More)
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