PMAIP1 and non-small cell lung carcinoma: Since the p-p38/NOXA axis was confirmed in our current study (Figs. 6 and 7), we then analyzed the relationship between p-p38 and NOXA in the protein expression level in human NSCLC tissues and found that p-p38 expression was positively correlated with NOXA expression in NSCLC (R = 0.3788, P = 0.0002) (Fig. 7I).