?AUTOLYSIS OF PROTEOLYTIC ENZYME IN METASTATIC BREAST CANCEROUS TISSUE
Keywords:
Proteases, Chromatography, Breast cancer, Autolysis.Abstract
Studies on autolysis of proteolytic enzyme like cathepsin revealed that the purified enzyme was autolysed by
metastasisorduetoabsenceofstabilizer.CrudetissuewasextractedwithsodiumchloridebuffercontainingEDTAand
Triton x-I00.Extract was analyzedfortotal proteinandproteaseactivity.Protein/peptide was analyzed/purified using
SDS polyacrylamide gelelectrophoresis, ionexchange chromatography and reversed phase HPLC. Results indicated
the autolysis during purification of enzyme. It is concluded that during and after purification suitable stabilizer of
enzyme should be added. In vitro experiment indicated that in vivo (cancerous tissue), the imbalance of specific
stabilizer/inhibitors of proteasecause autolysisof enzyme and theresulting peptides cause the damaging effects.