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Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2010 by Universidad Católica de Valparaíso -- Chile
Vol. 13 No. 5, Issue of September 15, 2010

Figure 5. Colorimetric assay of caspase-3 activity of cancer cells; U937, HeLa, HepG2 and MCF-7 and normal cells (bottom) treated with or without the microbial extracts at the concentration of 40 µg/ml Ys102; 125 μg/ml  B92; 100 µg/ml B151; and 40 µg/ml B100 extracts, respectively at 37ºC for 24 hrs. Z-VAD-fmk is a broad range caspase inhibitor. The results shown are the representatives of three independent experiments. The treated sample showed significantly increased (*) in caspase activity compared to those untreated and caspase inhibitor addition (P < 0.05).

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