RETRACTION: Melatonin Prevents Deregulation of the Sphingosine Kinase/Sphingosine 1-Phosphate Signaling Pathway in a Mouse Model of Diethylnitrosamine-Induced Hepatocellular Carcinoma

RETRACTION: Sánchez DI, González-Fernández B, San-Miguel B, de Urbina JO, Crespo I, González-Gallego J, Tuñón MJ. Melatonin prevents deregulation of the sphingosine kinase/sphingosine 1-phosphate signaling pathway in a mouse model of diethylnitrosamine-induced hepatocellular carcinoma. J Pineal Res 2017;62:e12369. https://doi.org/10.1111/jpi.12369

The above article, published online on 1 October 2016 in Wiley Online Library (wileyonlinelibrary.com), has been retracted by agreement between the journal Editor-in-Chief, Gianluca Tosini, and John Wiley and Sons Ltd. Following publication, concerns were raised by third parties regarding Figure 4C. The authors could not provide the original data for this figure. The authors provided an updated image, but this was not sufficient to resolve the concerns, and the authors were unable to provide a satisfactory explanation for the concerns. The retraction has been agreed because of concerns that portions of the figure were duplicated, affecting the interpretation of the data and results presented. The authors disagree with this decision.