Table 1. Colon cell lines listed with genetic backgrounds.

Cell line	Characteristic
FET	Early stage CRC, well diff., high TGFβ1
HCT116 p21−/−	p21 negative cell line HCT116
HCT116	Mismatch repair deficiency
SW480	SMAD4 null
SW620	SW480 lymph node metastatic derivative
Caco-2	p21 and SMAD4 wild type, MS stable