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IL-6 increases motility of T-47D ductal breast carcinoma cells. T-47D cells plated at a low density (42 cells/cm2 in T-25 flasks) were either left untreated or exposed to rIL-6 (150 ng/mL) for 11 days as indicated. Two representative colonies (Giemsa-stained) under each experimental condition are illustrated. Scale bar = 20 µm. Adapted from Tamm et al., 1989 [3].
