Fig. 2From: HPV-16 E7 expression up-regulates phospholipase D activity and promotes rapamycin resistance in a pRB-dependent mannerpRb downregulation leads to PLD activation in PHK. a Expression of pRb in PHK was silenced using lentiviral particles codifying specific shRNAs. Silencing efficiency was determined by western blot in 30 micrograms of total protein extracts. b The effect of pRb silencing on PLD activity was determined using Phospholipase D kit according to manufacture instructions. Error bars represent the standard deviation for three independent experiments. (*) p < 0.05Back to article page