PCF11 and neuroblastoma: This reflects our in vitro and in vivo observations (Figs. 4c–g and 5a–e, Supplementary Figure 6a–e) and is corroborated by the respective expression signature of established markers for spontaneous neuroblastoma regression (that is a higher expression of HOXC946 and CHD547, Fig. 5g), although further studies are required to more comprehensively illuminate the role of PCF11 in this process.