the cellular and secreted levels of plasminogen activators and collagenases have been examined in the nonmalignant human osteosarcoma ( hos ) , the malignant kirsten murine sarcoma virus transformed ( khos/np ) , the temperature sensitive revertant of virus transformed hos ( khos-240s ) and n-methyl-n'-nitro-n-nitrosoguanidine transformed hos ( mnng/hos ) clones .
C1706141
np
C0086418
hos