Invasive capacity of CRC cell lines.

Invasion was analyzed using the Boyden chamber based cell invasion assay. Transmigrated cells were stained with crystal violet and counted. Different invasive capacity is indicated by the number of+symbols (>1000 cells: ++++++; >500 cells: +++++; >100 cells: ++++; >50 cells: +++; >10 cells: ++; >5 cells: +). Grey shaded = “mass” type; white = “grape-like” type.