Available online <Date> This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal).
This article has been retracted at the request of the authors.
In this paper, the authors described that Doublecortin-like kinase 1 (DCLK1) expression empowers MCF10A cells to form spheres under the floating condition in the serum-free growth factor-supplemented medium and causes chromosomal abnormality (Figs. 1 and 2). After the paper was published, the plasmids used in this study were deposited to Addgene. The next generation sequencing by Addgene revealed our sequencing error. There was a frame shift in the C-terminal region, which resulted in the artificial C-terminal sequence (35 C-terminal amino acid residues are replaced by artificial amino acid residues). Thereafter, the authors started to examine whether or not this aberrant sequence influences the conclusion of the paper. During this revision, the authors performed cell authentication by using short-tandem repeat profile and found that the cells expressing GFP-DCLK1 and GFP-DCLK1-kinase dead were not MCF10A cells but HEK293 cells. As lentivirus vectors were prepared by using HEK293 cells and used to establish MCF10A-GFP-DCLK1 and -GFP-DCLK1-kinase dead cells, MCF10A cells might be contaminated with HEK293 cells during the selection. The results shown in Figs. 1 and 2 are incorrect and do not support the argument that DCLK1 induces chromosomal instability. Hence, the authors would have retracted the paper and apologize for errors.