Following the publication of the above article, an interested reader drew to the authors' attention that, in Fig. 5A on p. 1305, the same xenograft tumor image had been selected for a pair of the GFP/U2‑OS experiments, where the images from discretely performed experiments were intended to have been shown. Furthermore, upon performing an independent analysis of the data in the Editorial Office, it was noted that the data selected for the ‘SaO2/GFP/24 h’ and ‘SaO2/HMGN2/48 h’ experiments in Fig. 4A, also on p. 1305, were strikingly similar, such that the same data had apparently been chosen to show the results of differently performed experiments. After having inspected the figures, the authors realized that one of the n=3 experimental results had inadvertently been omitted from Fig. 5A, and the data shown to represent the ‘SaO2/GFP/24 h’ experiment had been chosen incorrectly. The revised and corrected versions of Figs. 4 and 5 are shown on the next page (also note that erroneously written labels have been corrected in Fig. 5C: “Tumor volume” has been replaced by “Tumor weight”). Note that the errors made in terms of the assembly of the data in these figures did not affect the overall conclusions reported in the paper. The authors are grateful to the Editor of Oncology Reports for granting them this opportunity to publish a Corrigendum, and apologize to boh the Editor and the readership for any inconvenience caused. [Oncology Reports 33: 1300‑1306, 2015; DOI: 10.3892/or.2014.3689]

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