Vascular endothelial growth factor (VEGF) secretion by myeloma cells.

Basal VEGF concentrations were determined in supernatants of myeloma cell lines (n = 5 independent experiments per cell line performed in triplicates) and of sorted marrow myeloma cells from patients with multiple myeloma (MM; n = 12) after 72 hours of culture. Data are presented as medians and interquartile ranges.