Fig. 6

Influence of PKCε downregulation and rapamycin or 3-MA treatment on protein level directly involved in autophagy activation (mTOR, PI3K, Beclin1). a U-138 MG and b U-118 MG cells were transfected for 72 h with PKCε siRNA (PKCε siRNA) and non-targeting siRNA (Control siRNA) and then were treated for 24 h with rapamycin (300 nM) (PKCε siRNA + Rap) or 3-MA (5 mM) (PKCε siRNA + 3-MA). GAPDH was used as a loading control and as an internal standard. Representative blots are shown. In case of mTOR the order of bands has been changing, due to a different final construct of probe layout. The densitometric analysis represents means ±SD of three independent experiments. * P < 0.05, ** P < 0.01 statistically significant compared to Control siRNA