Scientific Reports 3, Article number: 3056 (2013); Published: 28 October 2013; Updated: 14 March 2014

Marika Crescenzi was omitted from the author list in the original version of this Article. This has been corrected in the PDF and HTML versions of the Article.

The Author Contributions section should read “G.V. designed and performed the experiments, analyzed data and drafted the manuscript, M.R., G.C., C.T., A.C. preformed molecular biology experiments, S.Q., A.B. performed cell culture and western blot experiments, F.C. and M.C. performed histological analysis, N.T. handled the mice colony, C.M. carried out statistical analysis, A.A., A.G. were involved in the discussion and manuscript editing, P.P. was involved in the experimental design of the study, in the analysis of the data and manuscript editing. All authors reviewed the manuscript.”