Figure 4. Differential effects of cell division and microfilament inhibitors on expression of PKCδ and phosphorylated-PKCδ(Thr505) (labelled as P-PKCδ) in primary keratinocytes.
Primary mouse keratinocytes, after culturing for five days, were treated with the five inhibitors for 12 h, respectively. (A) Western blot analysis for expression of PKCδ (upper panel) and P-PKCδ (lower panel)after treatment with different inhibitors. Actin was examined as loading control. (B). Control and STS- and Lat-treated keratinocytes were triple-stained for spectrin (Green), PKCδ (Red) and nuclei (Blue). Scale bars are 15 µm. (C). Control and STS- and Lat-treated keratinocytes were triple-stained for spectrin (Green), P-PKCδ (Red) and nuclei (Blue). Arrows point to cells exhibiting strong phosphorylation of PKCδ(Thr505) and weak expression of spectrin. Scale bars are 20 µm.