MDM2 and neuroblastoma: Keeping in view the above facts, the aim of the present study was to evaluate the anti-neuroblastoma activity of SP141 (formal chemical name: 6-methoxy-1-(1-naphthalenyl)-9H-pyrido(3,4-b)indole) [33,34,35,36], a first-in-class MDM2 inhibitor with unique mechanisms of action different from the existing MDM2 inhibitors.