Journal
PROCESS BIOCHEMISTRY
Volume 47, Issue 8, Pages 1243-1249Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.procbio.2012.04.020
Keywords
N. naja; Disintegrin; DNA fragmentation; Apoptosis; G0/G1 cycle arrest in vitro
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Animal venoms and toxins are potential bioresources that have been known to mankind as a therapeutic tool for more than a century through folk and traditional medicine. The purified disintegrin protein (64 kDa) from the venom of the Indian cobra snake (Naja naja) exhibited cytotoxic effects of various types of human cancer cell lines such as breast cancer (MCF-7), lung cancer (A549) and liver cancer (HepG2). In vitro cytotoxicity, DNA fragmentation, an apoptotic assay and a cell cycle analysis were performed to evaluate the anticancer activity of disintegrin against the above cell lines. The IC50 value of disintegrin was determined to be 2.5 +/- 0.5 mu g/mL, 3.5 +/- 0.5 mu g/mL, and 3 +/- 0.5 mu g/mL for the MCF-7, A549 and HepG2 cell lines respectively. Moreover, the increased distribution of G0/G1 and S phase led to decreased populations of cells in the G2/M phase of MCF-7, HepG2 and A549 cells. (C) 2012 Elsevier Ltd. All rights reserved.
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