PXN and non-small cell lung carcinoma: To reveal the biological effects of PXN-AS1-L on NSCLC, we stably overexpressed PXN-AS1-L in A549 cells which has a relative low expression of PXN-AS1-L among NSCLC cell lines by transfecting PXN-AS1-L overexpression plasmid (Fig. 2a).