although all the mcf-7 cell lines had approximately the same number of egf receptors per cell , ranging from 3 to 6 x 10 ( 3 ) sites/cell , cm from these lines varied in potency with respect to inducing the growth of normal rat kidney cells as colonies in soft agar and in inhibiting the binding of egf to nih/3t3 cells .
C0007634
cell
C0007595
growth of