MYCN-Driven Metabolic Networks Are a Critical Dependency of High-Risk Neuroblastomas.

Neuroblastoma is a devastating pediatric solid tumor that, despite significant recent advances, still accounts for nearly 15% of all childhood cancer deaths. Patients are risk stratified based on a number of features, including amplification of the MYCN oncogene, yet targeting MYCN itself has been unsuccessful to date. The complex interplay between this oncogene and its many metabolic targets has proven challenging and is only beginning to be understood in the context of pediatric tumors. It is increasingly recognized, however, that MYCN-driven metabolic rewiring and concomitant increases in biosynthetic precursors has the potential to drive many aspects of tumor development. Furthermore, emerging research suggests that improving overall therapeutic outcomes for neuroblastoma patients may well require individual metabolic profiling, allowing personalized simultaneous targeting of multiple metabolic nodes. In this review, we outline clinically relevant research involving MYCN-driven metabolic derangements, including increased glucose uptake, polyamine synthesis, glycosylation, and others, and attempt to summarize the influence of MYCN on important metabolic genes and druggable protein targets. We spotlight emerging research in glycosylation and its modulation as an often overlooked but increasingly promising therapeutic area. It is our hope that this document will provide utility for both clinicians and scientists seeking to understand how the MYCN oncogene and metabolism are critically intertwined.