MYCN and neuroblastoma: To identify novel lncRNAs important for MYCN‐nonamplified neuroblastoma tumorigenesis, we performed RNA sequencing to analyze differential gene expression between two MYCN gene nonamplified (SK‐N‐AS, SY5Y) and four MYCN gene‐amplified (CHP134, SKNDZ, Kelly and BE(2)‐C) human neuroblastoma cell lines.