We studied the effects of 5 kinds of catechins on the adhesion of mous
e lung carcinoma 3LL and melanoma B16F10 cells to the fibronectin subs
tratum. (-)-Epicatechin gallate and (-)-epigallocatechin gallate were
active in inhibiting the 3LL cell adhesion, while (+)-catechin, (-)-ep
icatechin, and (-)-epigallocatechin were inactive. Gallate-containing
catechins also impaired adhesion and/or spreading of B16F10 cells.