Figure 4.

Different expression of phosphorylated p38MAPK between CD44⁺CD133⁻ and CD44⁺CD133⁺ cells. Representative blots and semiquantitative data on the expression of phosphorylated p38MAPK and total p38MAPK in cells treated with 10 μM DXR, in the absence or presence of 50 μM verapamil. The quantitative data are normalized to total p38MAPK. Data are expressed as relative values to CD44⁺CD133⁻ cells without DXR treatment and presented as the mean ± SD from three independent experiments.