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. 2010 Jul 22;5(7):e11700. doi: 10.1371/journal.pone.0011700

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Kaler et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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A: The amount of apoptosis was determined in HCT116 cells treated with TRAIL under indicated conditions. Error bars were derived from 2 independent experiments. B: The effect of vitamin D₃ on TRAIL-induced activation of caspases and the cleavage of PARP and β-catenin was determined by immunoblotting.