SLC67A1-AS and non-small cell lung carcinoma: In datasets where both nontumor and tumor lung tissue expression data were available (GSE31210, GSE19188 and GSE68465), SLC22A18 and SLC22A18AS expression was analyzed, and overexpression of both genes was found in NSCLC tissues (p < 0.001) in all three of these datasets (Figure 3a).