KRAS and non-small cell lung carcinoma: Moreover, non-depleted αEGFR-mAB-P-transported KRAS siRNA led to significant reduction of colony formation in NSCLC A549 cells (Fig. 2G) and NSCLC SK-LU1 cells (Fig. 2H) in contrast to control-siRNA, whereas the depletion of free SMCC-protamine completely abolished this effect.