Abstract
Following the publication of this article, the authors find that they are not able to reproduce the results presented in this paper. Consequently, the authors have decided to retract this paper from publication. All of the authors agree to this retraction. The authors sincerely regret this decision, and apologize to the Editor and to the readership of the Journal for any inconvenience caused. [the original article was published in Oncology Reports 33: 783-791, 2015; DOI: 10.3892/or.2014.3644].