Following publication of the original article , an error was identified in the images presented in Fig. 4, specifically: Figure 4B: incorrect images were originally used for Lenti-NC in 5637 cell line; the correct images are now used Furthermore, two of the primer sequences listed in the Table S1 (part of ‘Additional file 3: Supplementary materials and methods’) contained typographical errors. The sequences for HGF F and GAPDH F have been corrected in the new version of the file. The authors provided the journal with the original data files. The corrected version of Fig. 4 is provided here. The correction does not have any effect on the results or conclusions of the paper.