The invasive effect of PTEN and KLF4 on NSCLC cells was similar to that of deguelin, and the effect on siRNA of PTEN and KLF4 in NSCLC cells was similar to that of NC but different from that of deguelin (Figures 3(b) and 3(d)). This evidence concerns the gene KLF4 and non-small cell lung carcinoma.