Abstract
Introduction and Aim: This study reports the cytotoxic potential of L-Asparaginase isolated from the fungus Scopulariopsis brevicaulis.
 Materials and Methods: Extracellular L- Asparaginase was isolated from Scopulariopsis brevicaulis and purified by ammonium sulfate precipitation, followed by dialysis, ion exchange and gel filtration chromatography. Varying concentrations (31.25, 62.5, 125, 250, 500 µg/ml) of purified L-Asparaginase was tested on MCF7, HeLa, HepG2 and 3T3L1cell lines by MTT assay. Curcumin was maintained as a positive control.
 Results: Minimum inhibition of 23.57% was observed at an enzyme concentration of 31.25 µg/ml and maximum inhibition (66.41%) was observed at 500 µg/ml against MCF7 cell line. Minimum inhibition of 2.87% was observed at an enzyme concentration 31.25 µg/ml and maximum inhibition (58.49%) was observed at 500 µg/ml against HeLa cell line. Minimum inhibition of 4.58% was shown at an enzyme concentration of 31.25 µg/ml and maximum inhibition (46.14 %) was observed at 500 µg/ml against HepG2 cell line. Minimum inhibition of 1.4% was shown by enzyme concentration 31.25 µg/ml and maximum inhibition (50.9%) was observed at 500 µg/ml against 3T3L1 cell line.
 Conclusion: We report for the first time the cytotoxic potential of L-Asparaginase from Scopulariopsis brevicaulis.
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