in contrast to nih-3t3 cells or simian virus 40 ( sv40 ) -transformed 3t3 cells , all the other transformed nih-3t3 cell lines expressed a 4.5 kb transforming growth factor-alpha ( tgf alpha ) -specific mrna transcript and secreted immunoreactive and biologically active tgf alpha ranging from 100 to 225 ng/10 ( 8 ) cells/48 h .
C1327616
secreted
C0007634
cells