Indeed, ELK4 was found to be up-regulated in NSCLC cells and in NSCLC tissues (Additional file 2: Fig. S9a-c, S10a-b, S14b) and its expression levels were positively correlated with that of AS-tDR-007333 in NSCLC tumor tissues (Additional file 2: Fig. S14e). The gene discussed is ELK4; the disease is non-small cell lung carcinoma.