Consistently, transcriptomic analysis comparing LKB1-mutant and wild-type NSCLC cell lines within the CCLE dataset demonstrated that DPP4, along with several previously reported KL-downregulated genes, was selectively suppressed in the LKB1-mutant group (Supplementary Fig. S1A and S1B). This evidence concerns the gene STK11 and non-small cell lung carcinoma.