Figure 2: MTT assay results on cell proliferation of 3D and 2D cultured cells. (A) DU145 cells and (B) CAL27 cells growing in 3D culture in comparison to their respective 2D culture, measured at 48 h of growth. Initial cell number varied from 500 to 20,000 cells/well for DU145 and from 5,000 to 100,000 cells/well for CAL27. |