ph 5.0 of agar-gelled overlayers containing untransformed nrk-49f or kimsv-transformed nrk-49f cells in the presence of fetal calf serum or crude 49f-cell conditioned medium , as sources of latent tgf-beta , elicited egf-dependent colony formation of 49f cells and inhibited spontaneous growth of transformed cells .
C0007634
cell
C0007595
growth of