The previous work reporting the presence of the antisense lncRNAs called ASFMR1 and FMR4 was performed in neuroblastoma (Khalil et al. 2008) and lymphoblastoid cell lines (Ladd et al. 2007), which display different epigenetic signatures than normal human brain potentially occluding discovery of additional transcripts. Here, FMR1-AS1 is linked to neuroblastoma.