Subsequent to the publication of the above article, the authors have realized that the published version of Fig. 7 contained some incorrect data. Essentially, the images for Fig. 7B were selected incorrectly. The correct version of Fig. 7, as it should have been featured in the article, is shown opposite. The errors associated with this Figure did not have an impact on the overall meaning of the paper, or on the reported conclusions of this study. The authors regret that this figure was not corrected prior to the publication of this article, and apologize to the readership for the inconvenience caused. [the original article was published in International Journal of Molecular Medicine 37: 565‑574, 2016; DOI: 10.3892/ijmm.2016.2457].