PXN and non-small cell lung carcinoma: To further confirm the oncogenic roles of PXN-AS1-L on NSCLC, we stably knocked down PXN-AS1-L expression in NCI-H1299 cells which has a relative high expression of PXN-AS1-L among NSCLC cell lines by transfecting PXN-AS1-L specific shRNA (Fig. 3a).