Table 1.

Effects of EGCG and Poly E on the growth of human colon cancer cells (Caco2, HCT116, HT29, SW480, and SW837) and normal human fetal colon cells (FHC)

IC50*
EGCG
Poly E
Cell linesμg/mLμmol/Lμg/mLμmol/L†
Caco219.242.222.329.4
HCT11621.747.720.627.2
HT2922.850.220.126.5
SW48036.480.137.048.8
SW83719.643.119.625.9
FHC48.8107.449.465.2

  • ↵* IC50 equals concentration that caused 50% inhibition of growth based on data shown in Fig. 1.

  • ↵† Expressed as concentration of EGCG.