human fetal lung fibroblasts transformed with simian virus 40 , human bronchial epithelial cells transformed with the ras oncogene , fibrosarcoma cells ( ht-1080 ) , and a melanoma cell strain ( a 2058 ) , do not express this protease nor can the enzyme be induced in these cells by treatment with phorbol 12-myristate 13-acetate .
C0016030
fibroblasts
C0007634
cells