EIF6 and neoplasm: This work was supported by grants to PL from the Istituto Pasteur-Fondazione Cenci Bolognetti project “Detecting and characterizing specialized ribosomes translating specific classes of mRNAs in Archaea” and by funds from the Roma Sapienza University to PL for the project 2013 “Functional analysis of the translational factor eIF6, a tumor-promoter that enhances cell motility and invasiveness”; MIUR Ministero dell’Università e Ricerca Scientifica (FIRB 2012, codice progetto RBFR12NSCF); Ministero della Salute (Ricerca Corrente) and Associazione Italiana per la Ricerca sul Cancro (IG 14114).