Figure 4. Integrin α5 knock-down and inhibition of EGFR differently affect expression of cell cycle and apoptosis regulators in A431 cells. The cells were transduced with control or α5 shRNA-containing vectors or treated with PD168393 (as detailed in “Materials and methods” and Fig. 2) then western blot analysis and ECL-staining were performed. The blots were probed with 1:300 dulution of c-Myc antibodies and with 1:1000 dilution of other antibodies.