evidence suggesting that proteolytic enzymes are involved in cancer spread is as follows : proteases are involved in normal destructive events and tissue remodelling , correlations exist between different protease activities and metastatic potential in model tumor systems , inhibitors and antibodies against proteases inhibit metastasis in model systems and the finding of highest levels of protease activity at the invading front in tumors .
C0030940
proteases
C0030946
protease