Induction of apoptosis and inhibition of tumor proliferation by paclitaxel and MSA in MDA-MB-231 xenograft.

<p>(<b>A</b>) TUNEL staining. Data are presented as mean number of TUNEL-positive cells in each image. (<b>B</b>) Ki-67 IHC. Data are presented as mean % of Ki-67-positive cells. Error bars, SEM. *, statistically significant (<i>P</i><0.05) from both single-agent-treated sample and the control sample. Pac, paclitaxel. Right panels: Representative images from each group.