Abstract
Following the publication of the above article, an interested reader drew to the authors' attention that their paper was found to contain data with a previous article that had been published in the journal Oncotarget (Figs. 2C and 4B), and in a paper that appeared subsequently in the journal Molecular Cancer. All cases involved the sharing of Transwell assay data, and the other papers in question were published by the same authors/the same research group. After having examined their original data, the authors realized that Figs. 2 and 4 had been inadvertently assembled incorrectly in the above paper. Specifically, Figs. 2C and D, and 4B and D, showing the results of Transwell assay experiments indicating the effects of IL‑21R knockdown or co‑transfection with IL‑21R and miR‑125a mimic on cell invasion in HGC‑27 and MKN‑45 cell lines, contained erroneous images. The revised versions of Figs. 2 and 4, featuring replacement data for Figs. 2C and D and 4B and D, showing the correct data obtained for the effects of IL‑21R knockdown or co‑transfection with IL‑21R and miR‑125a mimic on cell invasion, are shown on the next page. All authors confirm that the errors made in Figs. 2C and D and 4B and D did not influence the final conclusions reported in the above article, and they thank the Editor of International Journal of Oncology for granting them the opportunity to publish a Corrigendum. All the authors agree to the publication of this Corrigendum, and apologize for the inconvenience to the readers. [International Journal of Oncology 54: 7‑16, 2019; DOI: 10.3892/ijo.2018.4612].