We compared the expression of SBF2-AS1 between NSCLC cell lines and human bronchial epithelial (HBE) cells, and the results revealed that SBF2-AS1 was upregulated in most NSCLC cell lines and showed the highest expression level in A549 and H1975 cells, while the expression in SPC-A1 cell line was lower (Fig. 2a). Here, SBF2 is linked to non-small cell lung carcinoma.