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. 2012 Dec 10;5(2):561–566. doi: 10.3892/etm.2012.855

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Copyright © 2013, Spandidos Publications

This is an open-access article licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. The article may be redistributed, reproduced, and reused for non-commercial purposes, provided the original source is properly cited.

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Figure 1. — Cytotoxicity of BAK and NK cells against HeLa cells. The BAK cell cytotoxicity was 24.08±7.81, 14.74±6.61 and 6.8±9.44% and the NK cell cytotoxicity was 17.62±5.59, 10.78±6.18 and 5.8±8.7% at the E/T ratios of 40:1, 20:1 and 10:1, respectively. Between the BAK and NK groups, there was no significant difference at the ratio of 10:1 (P= 0.249). However, the cytotoxicity of the BAK cells was significantly increased at the ratios of 40:1 (P=0.028) and 20:1 (P=0.046). The cytotoxicity of the BAK and NK cells increased as the E/T ratios increased. Data are shown as the median ± range,^*P<0.05. BAK, BCG-activated killer; NK, natural killer; E, effector; T, target cell; BCG, Bacillus Calmette-Guerin.