EGFR and urinary bladder cancer: By analyzing TCGA data from 408 bladder cancer patients [48], we found a positive correlation between ProT and HOTAIR (r = 0.108, p = 0.029) (Fig. 1e) but not between EGFR and HOTAIR (r = − 0.039, p = 0.434) nor between EGFR and ProT (r = − 0.065, p = 0.191) (Additional file 1: Fig. S1).