PAICS and non-small cell lung carcinoma: PAICS in the EGFR wild‐type (A549, H460, and H1299), EGFR mutant (PC9 and H1975) NSCLC cell lines and BEAS‐2B cells were knockdown using short hairpin RNA‐encoding lentiviruses (shNC, shPAICS#1, shPAICS#3).