EGFR and non-small cell lung carcinoma: In another study Ma et al., analyzed the expression profile of lncRNAs in NSCLC cell lines (PC9, HCC827 and H3122), resistant to EGFR-TKIs treatment, in contrast to parental cell lines, and using the Gene Expression Omnibus (GEO) analyses, identified thousands of deregulated lncRNAs, highlighting the overexpressed lncRNA CASC9, whereas the lncRNA EWAST1 (LINC00227) showed its involvement in the sensitivity to gefitinib.