[Corrigendum] TGF‑β1 mediates epithelial to mesenchymal transition via the TGF‑β/Smad pathway in squamous cell...

Following the publication of the above paper, it was drawn to the Editor's attention by a concerned reader that, regarding the Transwell assay data shown in Fig. 2C and 4D, two pairs of overlapping sections of data were identified comparing the panels in these figures, where the results from differently performed experiments were intended to have been portrayed. An Expression of Concern statement was published to account for these concerns (doi: 10.3892/or.2025.9001), after which the authors have responded to the Editorial Office to offer an explanation for this apparent duplication of data within the two figures. To address the issue of the scientific rigor and integrity of this paper, the affected experiments in Figs. 2C and 4D have been performed again in triplicate by the authors. The results obtained were broadly similar to those obtained in the original experiments, and the revised versions of Figs. 2 and 4 are shown on the next page. Also note that the following changes are required to the text in the paper describing the results of these experiments: In the Results section, the corrected data values and text for these experiments should now read as follows: For Fig. 2: 'The cells that invaded through the pores to the lower surface of the filter were 29±16 and 95±36 (P<0.05), respectively (Fig. 2C and D)'; and for Fig. 4: 'Smad2 RNAi abrogated the TGF‑β1‑induced suppression of E‑cadherin expression (Fig. 4C) and suppressed the invasion capacity of Tu686 cells (P<0.05, 70±22 vs. 23±8; Fig. 4D and E)'. The data values have also been amended in the respective figure legends for Figs. 2 and 4, as shown on the next page. Note that these errors did not have a significant impact on the conclusions reached in this study. The authors regret the errors that were made during the compilation of the original figures, and are grateful to the editor of Oncology Reports for allowing them the opportunity to publish this Corrigendum. All the authors agree with the publication of this corrigendum; furthermore, they apologize to the readership for any incon-venience caused. [Oncology Reports 25: 1581‑1587, 2011; DOI: 10.3892/or.2011.1251].