In addition, these results showed that Bcl‐2 and Bcl‐xL levels were unchanged at all‐time points tested, whereas Bmi1 and Mcl‐1 levels were decreased and Noxa level was increased after deguelin exposure in these NSCLC cell lines (Figure 4A, left). This evidence concerns the gene PMAIP1 and non-small cell lung carcinoma.