Following the publication of the above article, a concerned reader reported that certain of the cell invasion assay data shown in Fig. 2D, and the mouse images shown in Fig. 6A, were strikingly similar to data that appeared in the following (subsequently published) article: Li C, Zheng H, Hou W, Bao H, Xiong J, Che W, Gu Y, Sun H and Liang P: Long non-coding RNA linc00645 promotes TGF-β-induced epithelial-mesenchymal transition by regulating miR-205-3p-ZEB1 axis in glioma. Here, ZEB1 is linked to central nervous system cancer.