Do human myeloma cells directly produce basic FGF?

Basic fibroblast growth factor (bFGF) is a growth factor with proangiogenetic properties. Elevated bone marrow (BM) and peripheral serum bFGF levels have been reported in patients with multiple myeloma (MM)[1][1]-[3][2]; however, the source of bFGF in patients with MM is not completely elucidated.